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GB/T 8814-2017   Unplasticized polyvinyl chloride(PVC-U}profiles for the doors and windows (English Version)
Standard No.: GB/T 8814-2017 Status:valid remind me the status change

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Standard No.: GB/T 8814-2017
English Name: Unplasticized polyvinyl chloride(PVC-Uprofiles for the doors and windows
Chinese Name: 门、窗用未增塑聚氯乙烯(PVC-U)型材
Professional Classification: GB    National Standard
ICS Classification: 83.140.01 83.140.01    Rubber and plastics products in general 83.140.01
Issued by: AQSIQ; SAC
Issued on: 2017-11-01
Implemented on: 2018-5-1
Status: valid
Superseding:GB/T 8814-2004 Unplasticized Polyvinyl Chloride (PVC-U) Profiles for the Doors and Windows
Language: English
File Format: PDF
Word Count: 10000 words
Price(USD): 250.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 8814-2004 Unplasticized Polyvinyl Chloride (PVC-U) Profiles for Doors and Windows. Compared with GB/T 8814-2004, the main technical differences from this standard are as follows: —— Add general body profiles and decorative profiles in terms and definitions and classification, classification and marking; —— The wall thickness of the non-visible surface of Type B material should be no less than 2.0mm and should not be less than 2.2mm; —— Cancel C-type material; —— Increase drop hammer impact class III of main profile; —— Increase density requirements; —— Modify the Vicat softening temperature (VST) to not less than 75 °C to not less than 78 °C; —— Increase tensile yield stress and tensile fracture strain requirements; —— increase the requirement for short-term welding coefficient; —— Increase the requirements for the heat transfer coefficient of the main section; —— Increase requirements for hazardous substance limits; —— Add relevant requirements and test methods for all-body profiles and decorative profiles; ——Replace the informative Appendix A of this document in GB/T 8814-2004 with “Comparison of EN 12608:2008 rule number” with “Profile color deviation”, and delete the appendix in GB/T 8814-2004 B and Appendix C. This standard is proposed by China Light Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Plastic Products (SAC/TC 48). The previous versions of the standards replaced by this standard are: - GB/T 8814-1988, GB/T 8814-1998, GB/T 8814-2004 Unplasticized Polyvinyl Chloride(PVC-U) Profiles for the Doors and Windows 1 Scope This standard specifies the material, classification, classification and marking of unplasticized polyvinyl chloride (PVC-U) profiles for doors and windows, requirements, test methods, inspection rules, signs, packaging, transportation and storage. This standard applies to door and window profiles made of unplasticized polyvinyl chloride. 2 Normative References The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest version (including all amendments) applies to documents. GB/T 250-2008 Textiles - Tests for colour fastness GB/T 1033.1-2008 Plastics - Determination of Density of Non-cellular plastics - Part 1: Immersion Method, Liquid Pycnometer Method and Titration Method GB/T 1040.2 Plastics - Determination of Tensile Properties - Part 2: Test conditions for Moulded and Extruded Plastics GB/T 1043.1-2008 Plastics - Determination of Impact Properties of Simple Supported Beams - Part 1: Non-instrumented Impact Test GB/T 1633-2000 Determination of Vicat Softening Temperature (VST) of Thermoplastics GB/T 1766-2008 Paints and Varnishes Rating Methods for Coating Ageing GB/T 2828.1-2012 Count Sampling Inspection Procedures Part 1: Batch Inspection Sampling Plans Retrieved by Acceptance Quality Limit (AQL) GB/T 6739-2006 Paints and Varnishes Pencil Method for Determination of Film Hardness GB/T 7122-1996 Determination of High-Strength Adhesive Peel Strength Floating Roller Method GB/T 8484-2008 Classification and Testing Methods for Insulation Performance Of Doors and Windows Outside Buildings GB/T 9286-1998 Paints and Varnishes GB/T 9341-2008 Determination of Bending Properties of Plastics GB/T 11186.2 Methods for Determining the Color Of Coating Film Part 2: Color Measurement GB/T 11186.3 Methods for Measuring The Color of Coatings - Part 3: Color Difference Calculation GB/T 16422.2-2014 Plastics - Laboratory Light Source Exposure Test Methods - Part 2: Xenon Arc Lamps GB/T 33284 Interior Decorating Materials Unqualified Polyvinyl Chloride (PVC-U) Profiles for Doors and Windows JG/T 176 Plastic Door and Window Profile Functional Structure Size JG/T 451-2014 Unplasticized Polyvinyl Chloride Blends for Architectural Plastic Door and Window Profiles 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 profiles extruded products with a specific cross-sectional shape 3.2 white profiles integral material is uniform, and the color is within the profile of CIE 1976 (L*a*b*) color space with L* ≥ 82, -2.5 ≤ a* ≤ 5, -5 ≤ b* ≤ 15 3.3 homogenous profiles integral material uniform theme 3.4 profiles laminated with foil profiles that are decorated with a laminated diaphragm to change surface characteristics 3.5 co-extruded profiles coextruded polymer materials decorate and change the profile of the surface 3.6 coating profiles profiles that are decorated with paint and change surface characteristics 3.7 main profiles boxes, fans (except for yarn fans), and subjects 3.8 auxiliary profiles themes other than the main profile 3.9 sight surface installed doors, windows, profiled surfaces that can be seen when the doors and windows are closed 3.10 decorative surface after coating, co-extrusion, coating profiles surface 3.11 special decorative surface the composition of decoration is non-single color, non-flat surface, etc 3.12 decorative profiles profile with decorative surface 3.13 base profiles profiles except for decorative surfaces 3.14 depth of a profiles D measure the maximum distance between two visible surfaces in the X-axis direction of the cross-section of the profile, see Figure 1 3.15 overall of a profiles W measure the maximum dimension of the structure in the cross-section of the profile along the Y-axis, see Figure 1. Key: D——thickness W——width ——visible surface ——non-visible surface Figure 1 Cross Section of a Profile 4 Substrate Material Substrate materials for producing profiles shall comply with the requirements of Chapter 5 of JG/T451-2014, and the Vicat softening temperature (VST) of 5.8 shall be no less than 78°C. Appropriate use of recycled materials produced by the company as substrate materials is allowed. 5 Classification, Grading and Marking 5.1 Classification 5.1.1 Colors and Processes Profiles are divided into whole bodies and decorative profiles according to the color and process. Whole body is divided into white body and non-white body profile; Decorative profiles are divided into film, co-extrusion and coating profiles; Profile color and process classification are shown in Table 1. Table 1 Profile color and process classification Code Number BT FM GJ TZ FBT Category white full body lamination coextrusion painting non-white body Key: Profiles with white decorative surfaces are classified by process. 5.1.2 Wall thickness of the main profile The wall thickness of the main profile is shown in Figure 1, and the classification is shown in Table 2. Table 2 Classification of Wall Thickness of Main Profiles unit: mm Category Class A Class B visible surface ≥2.8 ≥2.5 non-visible surface ≥2.5 ≥2.2 5.2 Grading 5.2.1 Drop hammer impact of main section According to the main section of the drop hammer impact classification, see Table 3. Table 3 Drop Hammer Impact Grading of Main Profiles Level Level I Level II Level III Drop weight/g 1 000 Drop height/mm 1 000 1 500 Temperature/°C —10 —20 Key: In specific climatic conditions (such as the coldest month average temperature is lower than -10 °C), to take full account of the brittle failure of the profile, it is recommended to select the dash drop impact level of the main profile of Grade II or III in the design. 5.2.2 Aging Time According to the aging time, see Table 4. Table 4 Classification of Aging Time unit: hour Level Level M(for inner door, window) Level S(for outer door, window) Aging time 4 000 6 000 5.2.3 Insulation properties of the main section According to the insulation grade of the main section, see Table 5. Table 5 Classification of insulation properties of main sections Level Level 1 Level 2 Level 3 Heat transfer coefficient Kf/[W/(m2·K)] ≤2.0 ≤1.6 ≤1.0 5.3 Main section mark and example 5.3.1 Marking The main profile is marked as follows: 5.3.2 Example Example 1: White body profile, wall thickness 2.5mm, drop height 1000mm, temperature -10°C, aging time 4000h, heat transfer coefficient 1.8W/(m2·K). Marked as BT-B-I-M-1. Example 2: Coextrusion equipment, visual surface wall thickness 2.8mm, drop height 1500mm, temperature -20 °C, aging time 6000h, heat transfer coefficient 1.3W / (m2 · K). Marked as GJ-A-III-S-2 Example 3: One side co-extruded, one-side coated equipment, visible surface wall thickness 2.5mm, drop hammer height 1500mm, temperature -10°C, aging time 5000h, heat transfer coefficient 1.5W/(m2·K), marked GJ/FM-B-II-S-2. 6 Requirements 6.1 Appearance The color of the observable side of the profile should be uniform, and the surface should be smooth and even, without obvious bumps and impurities. Themes should be clean and free of burrs. Profiles allow invisible shrinkage marks caused by the process. Decorative profiles should also comply with the provisions of Table 6.   Table 6 Appearance of Decorative Profile Profile category Requirements FM cover film should be completely covered, smooth, no bubbles, and other defects GJ co-extrusion surface should not be exposed TZ the coating surface should be free from defects such as air bubbles, pinholes, cracks, sagging, exposed bottom, impurities, and wrinkles The appearance requirements of special decorative profiles can be negotiated between the customer and the manufacturer. For further requirements on the color of the profile, see Appendix A. 6.2 Dimensions and Deviations 6.2.1 Shape and function structure size Dimensional deviation should meet the requirements of Table 7. Table 7 Dimensional Deviation unit: mm Size Deviation Dimensions thickness D ±0.3 width W ±0.5 The functional structure size and deviation should meet the requirements of JG/T176. 6.2.2 Wall thickness of the main profile The minimum wall thickness of the main profile shall comply with the requirements of Table 2. The wall thickness of GJ and TZ profiles includes the thickness of the decorative surface, but the FM profile does not include the thickness of the cover film and adhesive layer. 6.2.3 Thickness of the decorative surface 6.2.3.1 Lamination The film thickness of FM profile should not be less than 0.160mm. 6.2.3.2 Coating surface dry film The thickness of the dry film on the visible side of the TZ profile shall not be less than 0.025mm. 6.2.3.3 Coextruded layers The coextruded layer thickness of GJ profile should not be less than 0.10mm. 6.3 Linear deviation The linear deviation of the main profile with a length of 1m shall not exceed 1mm, and the linear deviation of the auxiliary profile with a length of 1m shall not exceed 3mm. 6.4 The mass of the main profile The mass of the length of the main profile per meter should not be less than 95% of the nominal mass. 6.5 Dimensional change rate after heating The rate of change after heating of the two opposite largest visual surfaces of the main profile shall not exceed 2.0%; the difference in the dimensional change after heating of the two visible surfaces of each sample shall not be greater than 0.4%. The dimensional change after heating of the auxiliary profile should not exceed 3.0%. 6.6 Status after Heating Profile surface should be free of bubbles, cracks, pits, decorative profiles should also comply with the provisions of Table 8. Table 8 After Heating at 150°C Profile category Requirements FM There should be no separation between the membrane layers and between the membrane layer and the substrate. However, if bubbles appear, re-sampling should be performed at 120 °C for re-examination. The result should be no bubbles. GJ No separation between the coextruded layer and the substrate TZ The coating layer should not be peeled 6.7 Drop Hammer Impact 6.7.1 Drop impact of main section The visual surface of the impacted body profile and the non-decorative viewing surface of the decorative profile shall have no more than one sample with the visual surface broken. 6.7.2 Drop impact on the decorative surface The decorative visible surface of the decorative materials is impacted, and whether or not the decorative surface is cracked, separation between the decorative layer and the substrate should not occur. 6.8 Density The density of the profile substrate should not exceed 1530 kg/m3. 6.9 Vicat softening temperature The Vicat softening temperature (VST) of the profile substrate should not be less than 78°C. 6.10 Tensile Yield Stress and Tensile Fracture Strain The tensile yield force of the profile base material is not less than 37 MPa, and the tensile fracture strain should not be less than 100%. 6.11 Flexural Modulus The bending elastic modulus of the profile substrate should not be less than 2200 MPa. 6.12 Peel strength of coating layer and base material of FM profile The peel strength of the coating layer and the substrate should not be less than 2.5N/mm. 6.13 Hardness of TZ coating layer and adhesion to the substrate The pencil hardness of the coating should not be less than Class H. The adhesion between the coating layer and the substrate should meet the requirements of the cross-cutting method. 6.14 GJ profile resistant to environmental stress cracking There should be no crack on the co-extruded surface and no delamination or flaking of the coextruded layer and the substrate. 6.15 Aging 6.15.1 Color Change Test is conducted according to the aging time required in Table 4: The white decorative surface and white non-decorative surface of BT profiles and decorative profiles undergo a color measurement at intervals of 1000 h until the aging time required in Table 4 is reached. The color change of the sample before and after the visible surface aging within each time period is ΔE* should not exceed 5, and △b* should not be greater than 3; The non-white decorative surface of FBT profiles and decorative profiles shall have a color change ΔE* of not less than 5 before and after the visible surface aging; For the decorative surface of special decorative profiles, the color change of the visible surface of the sample before and after aging shall be not less than Grade 3 according to the gray sample card fastness grade specified in GB/T 250-2008. 6.15.2 Appearance Changes The irradiated surface of the specimen after aging should not appear peeling, spots, peeling, cracks, etc. The appearance of decorative profiles and FBT profiles should also comply with the provisions of Table 9. Table 9 Appearance of decorative profiles and FBT profiles after aging Profile category Requirements FM There should be no delamination, bulges, bubbles, etc. between the film and the substrate. GJ No separation between the coextruded layer and the substrate TZ No peeling or blistering between coating and substrate FBT No bubbles or pits should appear 6.15.3 Simple Beam (Double Gap) Impact Strength Retention After the aging, the retention rate of the simply supported beam (double notch) impact strength should not be less than 70%, and the decoration layer and the substrate of the decorative profile should not be separated. 6.15.4 Peel strength of coating layer and base material of FM profile After the aging, the peel strength between the coating layer and the substrate should not be less than 2.0 N/mm. 6.15.5 Pulverization of TZ Extrusion Coating and Adhesion to Substrate The level of powdering on the surface of the painting layer after aging should not be greater than 2. After the aging, the adhesion between the coating layer and the substrate should meet the requirements of the zero-crossing method. 6.16 Weldability of Main Profiles 6.16.1 Compressive bending stress of fillet angle The average bending bending stress of the welding angle should not be less than 35MPa, and the minimum bending bending stress should not be less than 30MPa. 6.16.2 Short-term welding coefficient The non-decorative surface of the short-term welding coefficient should not be less than 0.8, and the decorative surface should not be less than 0.7. 6.17 heat transfer coefficient of the main section The heat transfer coefficient of the main profile should meet the requirements of Table 5. 6.18 Limits of harmful substances The limits of harmful substances in profiles shall meet the requirements of GB/T 33284. 7 Test methods 7.1 Conditioning and Test Environment The condition was adjusted under the condition of temperature (23±2)°C and relative degree of (50±10)% and tested under the conditions. Samples used for appearance, size and deviation tests, adjustment time is not less than 1 h, and adjustment time for other test items is not less than 24 h. 7.2 Appearance Visual observation was performed under natural light or an equivalent artificial light source, visually measuring a distance of 0.5 m. 7.3 Dimensions and Deviations 7.3.1 Shape, Functional Structure Size and Wall Thickness Measured with a vernier caliper with a division value of not less than 0.05 mm, three measurements are made for the shape, functional structure size and wall thickness, and the wall thickness is taken as the minimum value. When the wall thickness is measured, the functional structure size area should be avoided and it should be carried out at a distance of 1 mm from the joint of different areas. The measurement site is shown in Figure 2. The wall thickness of the FM profile shall be deducted from the thickness of the cover film and the adhesive layer. For the method, see 7.3.2. Unit: mm Figure 2 Wall Thickness Measurement 7.3.2 Thickness of the decorative surface The thicknesses of the coating, co-extrusion and coating layers were measured with a reading microscope with an index of not less than 0.001 mm. A sample was taken from each of the three profiles. Three points were measured for each sample and the average was calculated. The minimum value of the three samples was taken as the result. 7.4 Linear Deviation A sample of length (1000﹢ )mm was taken from each of the three profiles. Place the sample concave side down on a standard platform over three levels. Measure the maximum clearance between the profile and the platform using a feeler gauge with a division value of not less than 0.1 mm, and then measure the surface perpendicular to the first measurement and take the maximum of the three samples. 7.5 Quality of Main Profiles From each of the three profiles, a section of 200 mm to 300 mm in length shall be taken. The end face of the specimen shall be perpendicular to the longitudinal axis of the profile. The mass of the sample is weighed with a balance of not less than 1 g. The length of the sample is measured with a gage with an index value of not less than 0.5 mm. Then the mass of the length of the profile is calculated and the arithmetic average of the three samples is taken. 7.6 Size change rate after heating 7.6.1 Sample Preparation A sample of length (250 ± 5) mm was cut from each of the three profiles. Two vertical and intersecting measurement lines with a spacing of 200 mm were made on the visible side of the sample. A pair of markings are made on the two main faces of the main profile and the auxiliary profiles are marked on only one side. 7.6.2 Test Equipment Electric blast box, the temperature accuracy is not less than 1 °C. 7.6.3 Test Procedure Measure the distance L0 of the measurement line between the two reticle lines with a gage with an index value not less than 0.05 mm to the nearest 0.1 mm. Place the non-visible surface on a glass plate sprinkled with talcum powder in an electric blast box at (100±2)°C for a period of minutes, then remove the glass plate, cool to room temperature, and measure the measurement line between the two reticle lines. Distance L1, accurate to 0.1mm. 7.6.4 Results and Representations The dimensional change rate after heating is calculated according to formula (1): (1) R - dimensional change rate after heating, %; L0 - the distance between the two marking lines before heating, in millimeters (mm); L1—The distance of the measurement line between the two marking lines after heating, in millimeters (mm). For the main profile, calculate the heated dimensional change rates R1 and R2 of the two relative visible surfaces, take the average of three samples, and calculate the dimensional change rate of the two heated surfaces of each sample after heating. △R, take the maximum of the three samples. 7.7 After heating 7.7.1 Sample Preparation A sample of length (200±10) mm was cut from each of the three profiles. 7.7.2 Test Equipment Electric blast box, the temperature accuracy is not less than 1 °C. 7.7.3 Test Procedure The sample was placed horizontally on a glass plate sprinkled with talc in an electric blast box at (150 ± 2) °C for a time of min, then removed together with a glass plate and cooled to room temperature. Observe whether it complies with 6.6. If air bubbles appear on the decorative surface of the FM profile, it should be resampled and the same test performed at (120 ± 2) °C. 7.8 Drop Hammer Impact 7.8.1 Drop hammer impact on main section 7.8.1.1 Sample preparation A total of 10 specimens with a length of (300 ± 5) mm were sampled from the three profiles. 7.8.1.2 Test Equipment Drop weight impact tester: drop weight mass (1000 ± 5) g, hammer radius of curvature (25 ± 0.5) mm. 7.8.1.3 Test conditions Put the sample in °C or °C for 1 hour and take it out. Perform the impact test at the temperature (23±2) °C. The single sample should be completed in 10s. 7.8.1.4 Test Procedure Place the sample to be impacted upwards on the support frame (see Figure 3), impact the center of the sample between the two support blocks, each sample impacted once, the drop hammer height 1 is in mm, grade II and III The rating is mm and meets the following requirements: a) The whole body profile should be exposed to the visible surface exposed to the outside, and when the outer visible surface cannot be confirmed, the two visible surfaces each impact 5 samples. If one of the visible surfaces cannot be subjected to an impact test, only the other A visual surface for impact testing. Decorative profiles should impact non-decorative viewing surfaces. b) For asymmetric structural profiles, to prevent tilting of the profile during impact, auxiliary supports shall be provided before impact. c) For the visible surface of the multi-cavity structure profile, the cavity surface that crosses the center line of the visible surface should be selected. If the cavity is distributed on both sides of the center line of the visible surface, the larger chamber surface near the two chambers near the centerline shall be selected.
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Substrate Material 5 Classification, Grading and Marking 6 Requirements 7 Test methods 8 Inspection Rules 9 Signs 10 Packaging, Transport and Storage
Referred in GB/T 8814-2017:
*GB/T 250-2008 Textiles—Tests for colour fastness—Grey scale for assessing change in colour
*GB/T 1033.1-2008 Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion method liquid pyknometer method and titration method
*GB/T 1040.2-2022 Plastics—Determination of tensile properties—Part 2: Test conditions for moulding and extrusion plastics
*GB/T 1043.1-2008 Plastics - Determination of charpy impact properties - Part 1: Non - instrumented impact test
*GB/T 1633-2000 Plastics--Thermoplastic materials--Determination of Vicat sofening temperature (VST)
*GB/T 1766-2008 Paints and Varnishes-Rating Schemes of Degradation of Coats
*GB/T 2828.1-2012 Sampling procedures for inspection by attributea-Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
*GB/T 6739-2006 Paints and varnishes - Determination of film hardness by pencil test
*GB/T 7122-1996 Adhesives-Determination of peel resistance of high-strength adhesive bonds-Floating roller method
*GB/T 8484-2008 Graduation and test method for thermal insulating properties of doors and windows
*GB/T 9286-1998 Paints and varnishes-Cross cut test for films
*GB/T 9341-2008 Plastics - Determination of flexural properties
*GB/T 11186.2-1989 Methods for measuring the colour of paint films. Part 2: Colour measurement
*GB/T 11186.3-1989 Methods for measuring the colour of paint films. Part 3: Calculation of colour differences
*GB/T 16422.2-2014 Plastics—Methods of exposure to laboratory light sources—Part 2:Xenon-arc sources
*GB/T 33284-2016 Indoor decorating and refurbshing materials—Limit of harmful substances of unplasticized polyvinyl chloride(PVC-U) profiles for the doors and windows
*JG/T 176-2015 Function Structure Measurement of Plastic Window/Door and Profile
*JG/T 451-2014 Performance Requirements and Test Methods for Unplasticized Poly(vinyl chloride)(PVC-U) Compounds for Windows and Doors in Buildings
GB/T 8814-2017 is referred in:
*GB/T 28886-2023 Plastic windows and doors for buildings
*GB/T 24508-2020 Wood-plastic composite flooring
Code of China
Standard
GB/T 8814-2017  Unplasticized polyvinyl chloride(PVC-U}profiles for the doors and windows (English Version)
Standard No.GB/T 8814-2017
Statusvalid
LanguageEnglish
File FormatPDF
Word Count10000 words
Price(USD)250.0
Implemented on2018-5-1
Deliveryvia email in 1 business day
Detail of GB/T 8814-2017
Standard No.
GB/T 8814-2017
English Name
Unplasticized polyvinyl chloride(PVC-U}profiles for the doors and windows
Chinese Name
门、窗用未增塑聚氯乙烯(PVC-U)型材
Chinese Classification
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2017-11-01
Implemented on
2018-5-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 8814-2004 Unplasticized Polyvinyl Chloride (PVC-U) Profiles for the Doors and Windows
Language
English
File Format
PDF
Word Count
10000 words
Price(USD)
250.0
Keywords
GB/T 8814-2017, GB 8814-2017, GBT 8814-2017, GB/T8814-2017, GB/T 8814, GB/T8814, GB8814-2017, GB 8814, GB8814, GBT8814-2017, GBT 8814, GBT8814
Introduction of GB/T 8814-2017
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 8814-2004 Unplasticized Polyvinyl Chloride (PVC-U) Profiles for Doors and Windows. Compared with GB/T 8814-2004, the main technical differences from this standard are as follows: —— Add general body profiles and decorative profiles in terms and definitions and classification, classification and marking; —— The wall thickness of the non-visible surface of Type B material should be no less than 2.0mm and should not be less than 2.2mm; —— Cancel C-type material; —— Increase drop hammer impact class III of main profile; —— Increase density requirements; —— Modify the Vicat softening temperature (VST) to not less than 75 °C to not less than 78 °C; —— Increase tensile yield stress and tensile fracture strain requirements; —— increase the requirement for short-term welding coefficient; —— Increase the requirements for the heat transfer coefficient of the main section; —— Increase requirements for hazardous substance limits; —— Add relevant requirements and test methods for all-body profiles and decorative profiles; ——Replace the informative Appendix A of this document in GB/T 8814-2004 with “Comparison of EN 12608:2008 rule number” with “Profile color deviation”, and delete the appendix in GB/T 8814-2004 B and Appendix C. This standard is proposed by China Light Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Plastic Products (SAC/TC 48). The previous versions of the standards replaced by this standard are: - GB/T 8814-1988, GB/T 8814-1998, GB/T 8814-2004 Unplasticized Polyvinyl Chloride(PVC-U) Profiles for the Doors and Windows 1 Scope This standard specifies the material, classification, classification and marking of unplasticized polyvinyl chloride (PVC-U) profiles for doors and windows, requirements, test methods, inspection rules, signs, packaging, transportation and storage. This standard applies to door and window profiles made of unplasticized polyvinyl chloride. 2 Normative References The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest version (including all amendments) applies to documents. GB/T 250-2008 Textiles - Tests for colour fastness GB/T 1033.1-2008 Plastics - Determination of Density of Non-cellular plastics - Part 1: Immersion Method, Liquid Pycnometer Method and Titration Method GB/T 1040.2 Plastics - Determination of Tensile Properties - Part 2: Test conditions for Moulded and Extruded Plastics GB/T 1043.1-2008 Plastics - Determination of Impact Properties of Simple Supported Beams - Part 1: Non-instrumented Impact Test GB/T 1633-2000 Determination of Vicat Softening Temperature (VST) of Thermoplastics GB/T 1766-2008 Paints and Varnishes Rating Methods for Coating Ageing GB/T 2828.1-2012 Count Sampling Inspection Procedures Part 1: Batch Inspection Sampling Plans Retrieved by Acceptance Quality Limit (AQL) GB/T 6739-2006 Paints and Varnishes Pencil Method for Determination of Film Hardness GB/T 7122-1996 Determination of High-Strength Adhesive Peel Strength Floating Roller Method GB/T 8484-2008 Classification and Testing Methods for Insulation Performance Of Doors and Windows Outside Buildings GB/T 9286-1998 Paints and Varnishes GB/T 9341-2008 Determination of Bending Properties of Plastics GB/T 11186.2 Methods for Determining the Color Of Coating Film Part 2: Color Measurement GB/T 11186.3 Methods for Measuring The Color of Coatings - Part 3: Color Difference Calculation GB/T 16422.2-2014 Plastics - Laboratory Light Source Exposure Test Methods - Part 2: Xenon Arc Lamps GB/T 33284 Interior Decorating Materials Unqualified Polyvinyl Chloride (PVC-U) Profiles for Doors and Windows JG/T 176 Plastic Door and Window Profile Functional Structure Size JG/T 451-2014 Unplasticized Polyvinyl Chloride Blends for Architectural Plastic Door and Window Profiles 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 profiles extruded products with a specific cross-sectional shape 3.2 white profiles integral material is uniform, and the color is within the profile of CIE 1976 (L*a*b*) color space with L* ≥ 82, -2.5 ≤ a* ≤ 5, -5 ≤ b* ≤ 15 3.3 homogenous profiles integral material uniform theme 3.4 profiles laminated with foil profiles that are decorated with a laminated diaphragm to change surface characteristics 3.5 co-extruded profiles coextruded polymer materials decorate and change the profile of the surface 3.6 coating profiles profiles that are decorated with paint and change surface characteristics 3.7 main profiles boxes, fans (except for yarn fans), and subjects 3.8 auxiliary profiles themes other than the main profile 3.9 sight surface installed doors, windows, profiled surfaces that can be seen when the doors and windows are closed 3.10 decorative surface after coating, co-extrusion, coating profiles surface 3.11 special decorative surface the composition of decoration is non-single color, non-flat surface, etc 3.12 decorative profiles profile with decorative surface 3.13 base profiles profiles except for decorative surfaces 3.14 depth of a profiles D measure the maximum distance between two visible surfaces in the X-axis direction of the cross-section of the profile, see Figure 1 3.15 overall of a profiles W measure the maximum dimension of the structure in the cross-section of the profile along the Y-axis, see Figure 1. Key: D——thickness W——width ——visible surface ——non-visible surface Figure 1 Cross Section of a Profile 4 Substrate Material Substrate materials for producing profiles shall comply with the requirements of Chapter 5 of JG/T451-2014, and the Vicat softening temperature (VST) of 5.8 shall be no less than 78°C. Appropriate use of recycled materials produced by the company as substrate materials is allowed. 5 Classification, Grading and Marking 5.1 Classification 5.1.1 Colors and Processes Profiles are divided into whole bodies and decorative profiles according to the color and process. Whole body is divided into white body and non-white body profile; Decorative profiles are divided into film, co-extrusion and coating profiles; Profile color and process classification are shown in Table 1. Table 1 Profile color and process classification Code Number BT FM GJ TZ FBT Category white full body lamination coextrusion painting non-white body Key: Profiles with white decorative surfaces are classified by process. 5.1.2 Wall thickness of the main profile The wall thickness of the main profile is shown in Figure 1, and the classification is shown in Table 2. Table 2 Classification of Wall Thickness of Main Profiles unit: mm Category Class A Class B visible surface ≥2.8 ≥2.5 non-visible surface ≥2.5 ≥2.2 5.2 Grading 5.2.1 Drop hammer impact of main section According to the main section of the drop hammer impact classification, see Table 3. Table 3 Drop Hammer Impact Grading of Main Profiles Level Level I Level II Level III Drop weight/g 1 000 Drop height/mm 1 000 1 500 Temperature/°C —10 —20 Key: In specific climatic conditions (such as the coldest month average temperature is lower than -10 °C), to take full account of the brittle failure of the profile, it is recommended to select the dash drop impact level of the main profile of Grade II or III in the design. 5.2.2 Aging Time According to the aging time, see Table 4. Table 4 Classification of Aging Time unit: hour Level Level M(for inner door, window) Level S(for outer door, window) Aging time 4 000 6 000 5.2.3 Insulation properties of the main section According to the insulation grade of the main section, see Table 5. Table 5 Classification of insulation properties of main sections Level Level 1 Level 2 Level 3 Heat transfer coefficient Kf/[W/(m2·K)] ≤2.0 ≤1.6 ≤1.0 5.3 Main section mark and example 5.3.1 Marking The main profile is marked as follows: 5.3.2 Example Example 1: White body profile, wall thickness 2.5mm, drop height 1000mm, temperature -10°C, aging time 4000h, heat transfer coefficient 1.8W/(m2·K). Marked as BT-B-I-M-1. Example 2: Coextrusion equipment, visual surface wall thickness 2.8mm, drop height 1500mm, temperature -20 °C, aging time 6000h, heat transfer coefficient 1.3W / (m2 · K). Marked as GJ-A-III-S-2 Example 3: One side co-extruded, one-side coated equipment, visible surface wall thickness 2.5mm, drop hammer height 1500mm, temperature -10°C, aging time 5000h, heat transfer coefficient 1.5W/(m2·K), marked GJ/FM-B-II-S-2. 6 Requirements 6.1 Appearance The color of the observable side of the profile should be uniform, and the surface should be smooth and even, without obvious bumps and impurities. Themes should be clean and free of burrs. Profiles allow invisible shrinkage marks caused by the process. Decorative profiles should also comply with the provisions of Table 6.   Table 6 Appearance of Decorative Profile Profile category Requirements FM cover film should be completely covered, smooth, no bubbles, and other defects GJ co-extrusion surface should not be exposed TZ the coating surface should be free from defects such as air bubbles, pinholes, cracks, sagging, exposed bottom, impurities, and wrinkles The appearance requirements of special decorative profiles can be negotiated between the customer and the manufacturer. For further requirements on the color of the profile, see Appendix A. 6.2 Dimensions and Deviations 6.2.1 Shape and function structure size Dimensional deviation should meet the requirements of Table 7. Table 7 Dimensional Deviation unit: mm Size Deviation Dimensions thickness D ±0.3 width W ±0.5 The functional structure size and deviation should meet the requirements of JG/T176. 6.2.2 Wall thickness of the main profile The minimum wall thickness of the main profile shall comply with the requirements of Table 2. The wall thickness of GJ and TZ profiles includes the thickness of the decorative surface, but the FM profile does not include the thickness of the cover film and adhesive layer. 6.2.3 Thickness of the decorative surface 6.2.3.1 Lamination The film thickness of FM profile should not be less than 0.160mm. 6.2.3.2 Coating surface dry film The thickness of the dry film on the visible side of the TZ profile shall not be less than 0.025mm. 6.2.3.3 Coextruded layers The coextruded layer thickness of GJ profile should not be less than 0.10mm. 6.3 Linear deviation The linear deviation of the main profile with a length of 1m shall not exceed 1mm, and the linear deviation of the auxiliary profile with a length of 1m shall not exceed 3mm. 6.4 The mass of the main profile The mass of the length of the main profile per meter should not be less than 95% of the nominal mass. 6.5 Dimensional change rate after heating The rate of change after heating of the two opposite largest visual surfaces of the main profile shall not exceed 2.0%; the difference in the dimensional change after heating of the two visible surfaces of each sample shall not be greater than 0.4%. The dimensional change after heating of the auxiliary profile should not exceed 3.0%. 6.6 Status after Heating Profile surface should be free of bubbles, cracks, pits, decorative profiles should also comply with the provisions of Table 8. Table 8 After Heating at 150°C Profile category Requirements FM There should be no separation between the membrane layers and between the membrane layer and the substrate. However, if bubbles appear, re-sampling should be performed at 120 °C for re-examination. The result should be no bubbles. GJ No separation between the coextruded layer and the substrate TZ The coating layer should not be peeled 6.7 Drop Hammer Impact 6.7.1 Drop impact of main section The visual surface of the impacted body profile and the non-decorative viewing surface of the decorative profile shall have no more than one sample with the visual surface broken. 6.7.2 Drop impact on the decorative surface The decorative visible surface of the decorative materials is impacted, and whether or not the decorative surface is cracked, separation between the decorative layer and the substrate should not occur. 6.8 Density The density of the profile substrate should not exceed 1530 kg/m3. 6.9 Vicat softening temperature The Vicat softening temperature (VST) of the profile substrate should not be less than 78°C. 6.10 Tensile Yield Stress and Tensile Fracture Strain The tensile yield force of the profile base material is not less than 37 MPa, and the tensile fracture strain should not be less than 100%. 6.11 Flexural Modulus The bending elastic modulus of the profile substrate should not be less than 2200 MPa. 6.12 Peel strength of coating layer and base material of FM profile The peel strength of the coating layer and the substrate should not be less than 2.5N/mm. 6.13 Hardness of TZ coating layer and adhesion to the substrate The pencil hardness of the coating should not be less than Class H. The adhesion between the coating layer and the substrate should meet the requirements of the cross-cutting method. 6.14 GJ profile resistant to environmental stress cracking There should be no crack on the co-extruded surface and no delamination or flaking of the coextruded layer and the substrate. 6.15 Aging 6.15.1 Color Change Test is conducted according to the aging time required in Table 4: The white decorative surface and white non-decorative surface of BT profiles and decorative profiles undergo a color measurement at intervals of 1000 h until the aging time required in Table 4 is reached. The color change of the sample before and after the visible surface aging within each time period is ΔE* should not exceed 5, and △b* should not be greater than 3; The non-white decorative surface of FBT profiles and decorative profiles shall have a color change ΔE* of not less than 5 before and after the visible surface aging; For the decorative surface of special decorative profiles, the color change of the visible surface of the sample before and after aging shall be not less than Grade 3 according to the gray sample card fastness grade specified in GB/T 250-2008. 6.15.2 Appearance Changes The irradiated surface of the specimen after aging should not appear peeling, spots, peeling, cracks, etc. The appearance of decorative profiles and FBT profiles should also comply with the provisions of Table 9. Table 9 Appearance of decorative profiles and FBT profiles after aging Profile category Requirements FM There should be no delamination, bulges, bubbles, etc. between the film and the substrate. GJ No separation between the coextruded layer and the substrate TZ No peeling or blistering between coating and substrate FBT No bubbles or pits should appear 6.15.3 Simple Beam (Double Gap) Impact Strength Retention After the aging, the retention rate of the simply supported beam (double notch) impact strength should not be less than 70%, and the decoration layer and the substrate of the decorative profile should not be separated. 6.15.4 Peel strength of coating layer and base material of FM profile After the aging, the peel strength between the coating layer and the substrate should not be less than 2.0 N/mm. 6.15.5 Pulverization of TZ Extrusion Coating and Adhesion to Substrate The level of powdering on the surface of the painting layer after aging should not be greater than 2. After the aging, the adhesion between the coating layer and the substrate should meet the requirements of the zero-crossing method. 6.16 Weldability of Main Profiles 6.16.1 Compressive bending stress of fillet angle The average bending bending stress of the welding angle should not be less than 35MPa, and the minimum bending bending stress should not be less than 30MPa. 6.16.2 Short-term welding coefficient The non-decorative surface of the short-term welding coefficient should not be less than 0.8, and the decorative surface should not be less than 0.7. 6.17 heat transfer coefficient of the main section The heat transfer coefficient of the main profile should meet the requirements of Table 5. 6.18 Limits of harmful substances The limits of harmful substances in profiles shall meet the requirements of GB/T 33284. 7 Test methods 7.1 Conditioning and Test Environment The condition was adjusted under the condition of temperature (23±2)°C and relative degree of (50±10)% and tested under the conditions. Samples used for appearance, size and deviation tests, adjustment time is not less than 1 h, and adjustment time for other test items is not less than 24 h. 7.2 Appearance Visual observation was performed under natural light or an equivalent artificial light source, visually measuring a distance of 0.5 m. 7.3 Dimensions and Deviations 7.3.1 Shape, Functional Structure Size and Wall Thickness Measured with a vernier caliper with a division value of not less than 0.05 mm, three measurements are made for the shape, functional structure size and wall thickness, and the wall thickness is taken as the minimum value. When the wall thickness is measured, the functional structure size area should be avoided and it should be carried out at a distance of 1 mm from the joint of different areas. The measurement site is shown in Figure 2. The wall thickness of the FM profile shall be deducted from the thickness of the cover film and the adhesive layer. For the method, see 7.3.2. Unit: mm Figure 2 Wall Thickness Measurement 7.3.2 Thickness of the decorative surface The thicknesses of the coating, co-extrusion and coating layers were measured with a reading microscope with an index of not less than 0.001 mm. A sample was taken from each of the three profiles. Three points were measured for each sample and the average was calculated. The minimum value of the three samples was taken as the result. 7.4 Linear Deviation A sample of length (1000﹢ )mm was taken from each of the three profiles. Place the sample concave side down on a standard platform over three levels. Measure the maximum clearance between the profile and the platform using a feeler gauge with a division value of not less than 0.1 mm, and then measure the surface perpendicular to the first measurement and take the maximum of the three samples. 7.5 Quality of Main Profiles From each of the three profiles, a section of 200 mm to 300 mm in length shall be taken. The end face of the specimen shall be perpendicular to the longitudinal axis of the profile. The mass of the sample is weighed with a balance of not less than 1 g. The length of the sample is measured with a gage with an index value of not less than 0.5 mm. Then the mass of the length of the profile is calculated and the arithmetic average of the three samples is taken. 7.6 Size change rate after heating 7.6.1 Sample Preparation A sample of length (250 ± 5) mm was cut from each of the three profiles. Two vertical and intersecting measurement lines with a spacing of 200 mm were made on the visible side of the sample. A pair of markings are made on the two main faces of the main profile and the auxiliary profiles are marked on only one side. 7.6.2 Test Equipment Electric blast box, the temperature accuracy is not less than 1 °C. 7.6.3 Test Procedure Measure the distance L0 of the measurement line between the two reticle lines with a gage with an index value not less than 0.05 mm to the nearest 0.1 mm. Place the non-visible surface on a glass plate sprinkled with talcum powder in an electric blast box at (100±2)°C for a period of minutes, then remove the glass plate, cool to room temperature, and measure the measurement line between the two reticle lines. Distance L1, accurate to 0.1mm. 7.6.4 Results and Representations The dimensional change rate after heating is calculated according to formula (1): (1) R - dimensional change rate after heating, %; L0 - the distance between the two marking lines before heating, in millimeters (mm); L1—The distance of the measurement line between the two marking lines after heating, in millimeters (mm). For the main profile, calculate the heated dimensional change rates R1 and R2 of the two relative visible surfaces, take the average of three samples, and calculate the dimensional change rate of the two heated surfaces of each sample after heating. △R, take the maximum of the three samples. 7.7 After heating 7.7.1 Sample Preparation A sample of length (200±10) mm was cut from each of the three profiles. 7.7.2 Test Equipment Electric blast box, the temperature accuracy is not less than 1 °C. 7.7.3 Test Procedure The sample was placed horizontally on a glass plate sprinkled with talc in an electric blast box at (150 ± 2) °C for a time of min, then removed together with a glass plate and cooled to room temperature. Observe whether it complies with 6.6. If air bubbles appear on the decorative surface of the FM profile, it should be resampled and the same test performed at (120 ± 2) °C. 7.8 Drop Hammer Impact 7.8.1 Drop hammer impact on main section 7.8.1.1 Sample preparation A total of 10 specimens with a length of (300 ± 5) mm were sampled from the three profiles. 7.8.1.2 Test Equipment Drop weight impact tester: drop weight mass (1000 ± 5) g, hammer radius of curvature (25 ± 0.5) mm. 7.8.1.3 Test conditions Put the sample in °C or °C for 1 hour and take it out. Perform the impact test at the temperature (23±2) °C. The single sample should be completed in 10s. 7.8.1.4 Test Procedure Place the sample to be impacted upwards on the support frame (see Figure 3), impact the center of the sample between the two support blocks, each sample impacted once, the drop hammer height 1 is in mm, grade II and III The rating is mm and meets the following requirements: a) The whole body profile should be exposed to the visible surface exposed to the outside, and when the outer visible surface cannot be confirmed, the two visible surfaces each impact 5 samples. If one of the visible surfaces cannot be subjected to an impact test, only the other A visual surface for impact testing. Decorative profiles should impact non-decorative viewing surfaces. b) For asymmetric structural profiles, to prevent tilting of the profile during impact, auxiliary supports shall be provided before impact. c) For the visible surface of the multi-cavity structure profile, the cavity surface that crosses the center line of the visible surface should be selected. If the cavity is distributed on both sides of the center line of the visible surface, the larger chamber surface near the two chambers near the centerline shall be selected.
Contents of GB/T 8814-2017
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Substrate Material 5 Classification, Grading and Marking 6 Requirements 7 Test methods 8 Inspection Rules 9 Signs 10 Packaging, Transport and Storage
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