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GB/T 34675-2017   Determination of volatile organic compound(VOC) content in radiation curable coatings (English Version)
Standard No.: GB/T 34675-2017 Status:valid remind me the status change

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Standard No.: GB/T 34675-2017
English Name: Determination of volatile organic compound(VOC) content in radiation curable coatings
Chinese Name: 辐射固化涂料中挥发性有机化合物(VOC)含量的测定
Chinese Classification: G50    Basic standard and general method for coating
Professional Classification: GB    National Standard
Issued by: AQSIQ; SAC
Issued on: 2017-11-01
Implemented on: 2018-11-1
Status: valid
Language: English
File Format: PDF
Word Count: 5500 words
Price(USD): 150.0
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 is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Technical Committee 5 on Paints & Pigments of Standardization Administration of China (SAC/TC 5). Determination of volatile organic compound (VOC) content in radiation curable coatings 1 Scope This standard specifies the terms and definitions, principles, apparatus, samples, test procedure and test data processing for determination of volatile organic compound (VOC) content in radiation curable coatings. This standard is applicable to the determination of VOC content in radiation curable coatings by ultraviolet (UV) curing, electron beam (EB) curing, etc. UV and EB curable inks, adhesives, etc. can also refer to this standard. 2 Normative references The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 3186 Paints, varnishes and raw materials for paints and varnishes—Sampling GB/T 5206-2015 Paints and varnishes—Terms and definitions GB/T 6750 Paints and varnishes—Determination of density—Pyknometer method GB/T 6753.4-1998 Paints and varnishes—Determination of flow time by use of flow cups GB 18582-2008 Indoor decorating and refurbishing materials—Limit of harmful substances of interior architectural coatings GB/ T 20777 Paints and varnishes—Examination and preparation of samples for testing GB/ T 21862.2 Paints and varnishes—Determination of density—Part 2: Immersed body (plummet) method GB/T 21862.3 Paints and varnishes—Determination of density—Part 3: Oscillation method GB/T 21862.4 Paints and varnishes—Determination of density—Part 4: Pressure cup method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 volatile organic compound content; VOC content; VOCC mass of volatile organic compounds contained in coatings measured under specified conditions [GB/T5206-2015, 2.2713.2] 3.2 ultraviolet curing; UV curing hardening of coatings when exposed to ultraviolet radiation [GB/T 5206-2015, 2.265] 3.3 electron beam curing; EB curing rapid curing of specially prepared coatings under the action of concentrated electron stream [GB/T 5206-2015, 2.95] 4 Principle After the specimen is prepared, the non-volatile matter content of the specimen is determined by appropriate methods according to the type of the specimen under specified conditions. If the specimen contains water, the water content shall be determined by Karl Fischer method or gas chromatography. If necessary, the density of the specimen shall be determined by appropriate methods according to the type of sample. Finally, the VOC content of the specimen is calculated. 5 Apparatus 5.1 Metal flat bottom dish Its diameter is (75±5) mm with edge height of 5mm, or other diameters can also be used if the specimen will not overflow. The mass m of the specimen used for the test is calculated using Equation (1), g: m=m_standard×(d/75)^2 (1) where, mstandard——the mass of the specimen when the dish is of standard diameter, g d—— the bottom diameter of the dish, mm; 75—— the standard diameter of the dish, mm. Note: For viscous coatings, aluminum foil with a thickness of about 0.1mm may be used. Cut the aluminum foil into a rectangle with a size of about (100±10) mm ×(300±10) mm that may be folded in half, and fully spread the viscous liquid by gently squeezing the folded parts. 5.2 Syringe Disposable syringe with a capacity of 1ml. 5.3 Oven Warning —— To prevent explosion or fire, samples containing volatile substances shall be handled with caution in accordance with the national relevant regulations. In order to ensure the safety of the test, a forced convection oven shall be selected, which can be kept within ±2°C of the specified or agreed temperature and equipped with a partition that can be horizontally placed. A natural convection oven equipped with a perforated metal partition at 1/3 height of the working chamber may also be used.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus 6 Sample 7 Test procedures 8 Test data processing
Referred in GB/T 34675-2017:
*GB/T 3186-2006 Paints varnishes and raw materials for paints and varnishes - Sampling
*GB/T 5206-2015 Paints and varnishes―Terms and definitions
*GB/T 6750-2007 Paints and varnishes—Determination of density—Pyknometer method
*GB/T 6753.4-1998 Paints and varnishes-Determination of flow time by use of flow cups
*GB 18582-2008 Indoor decorating and refurbishing materials - Limit of harmful substances of interior architectural coatings
*GB/T 20777-2006 Paints and varnishes - Examination and prepration of samples for testing
*GB/T 21862.2-2008 Paints and varnishes - Determination of density - Part 2: Immersed body (plummet) method
*GB/T 21862.3-2008 Paints and varnishes - Determination of densit - Part 3: Oscillation method
*GB/T 21862.4-2008 Paints and varnishes - Determination of density - Part 4: Pressure cup method
GB/T 34675-2017 is referred in:
*GB/T 35602-2017 Green product assessment—Coating material
*GB 30981-2020 Limit of harmful substances of industrial protective coatings
*GB 24409-2020 Limit of harmful substances of vehicle coatings
*GB/T 38597-2020 Technical requirement for low-volatile-organic-compound-content coatings product
*GB 38507-2020 Limits of volatile organic compounds (VOCs) in printing ink
*GB 18581-2020 Limit of harmful substances of woodware coatings
*GB/T 4094.2-2017 Electric vehicles-Symbols for controls,indicators and tell-tales
*GBZ/T 250-2014 Radiation shielding specifications for room of industrial X-ray radiography
*GBZ/T 250-2014/XG1-2017 Radiation shielding specifications for room of industrial X-ray radiography, includes Amendment 1
*GB/T 34975-2017 Information security technology-Security technical requirements and testing and evaluation approaches for application software of smart mobile terminals
*GB/T 34823-2017 Endurance test method for agricultural tyres
*GB/T 34708-2017 General Principles for Risk Assessment of Chemicals
*GB/T 34683-2017 Determination of formaldehyde content in waterborne coatings- High performance liquid chromatographic method
Code of China
Standard
GB/T 34675-2017  Determination of volatile organic compound(VOC) content in radiation curable coatings (English Version)
Standard No.GB/T 34675-2017
Statusvalid
LanguageEnglish
File FormatPDF
Word Count5500 words
Price(USD)150.0
Implemented on2018-11-1
Deliveryvia email in 1 business day
Detail of GB/T 34675-2017
Standard No.
GB/T 34675-2017
English Name
Determination of volatile organic compound(VOC) content in radiation curable coatings
Chinese Name
辐射固化涂料中挥发性有机化合物(VOC)含量的测定
Chinese Classification
G50
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2017-11-01
Implemented on
2018-11-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
5500 words
Price(USD)
150.0
Keywords
GB/T 34675-2017, GB 34675-2017, GBT 34675-2017, GB/T34675-2017, GB/T 34675, GB/T34675, GB34675-2017, GB 34675, GB34675, GBT34675-2017, GBT 34675, GBT34675
Introduction of GB/T 34675-2017
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 is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Technical Committee 5 on Paints & Pigments of Standardization Administration of China (SAC/TC 5). Determination of volatile organic compound (VOC) content in radiation curable coatings 1 Scope This standard specifies the terms and definitions, principles, apparatus, samples, test procedure and test data processing for determination of volatile organic compound (VOC) content in radiation curable coatings. This standard is applicable to the determination of VOC content in radiation curable coatings by ultraviolet (UV) curing, electron beam (EB) curing, etc. UV and EB curable inks, adhesives, etc. can also refer to this standard. 2 Normative references The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 3186 Paints, varnishes and raw materials for paints and varnishes—Sampling GB/T 5206-2015 Paints and varnishes—Terms and definitions GB/T 6750 Paints and varnishes—Determination of density—Pyknometer method GB/T 6753.4-1998 Paints and varnishes—Determination of flow time by use of flow cups GB 18582-2008 Indoor decorating and refurbishing materials—Limit of harmful substances of interior architectural coatings GB/ T 20777 Paints and varnishes—Examination and preparation of samples for testing GB/ T 21862.2 Paints and varnishes—Determination of density—Part 2: Immersed body (plummet) method GB/T 21862.3 Paints and varnishes—Determination of density—Part 3: Oscillation method GB/T 21862.4 Paints and varnishes—Determination of density—Part 4: Pressure cup method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 volatile organic compound content; VOC content; VOCC mass of volatile organic compounds contained in coatings measured under specified conditions [GB/T5206-2015, 2.2713.2] 3.2 ultraviolet curing; UV curing hardening of coatings when exposed to ultraviolet radiation [GB/T 5206-2015, 2.265] 3.3 electron beam curing; EB curing rapid curing of specially prepared coatings under the action of concentrated electron stream [GB/T 5206-2015, 2.95] 4 Principle After the specimen is prepared, the non-volatile matter content of the specimen is determined by appropriate methods according to the type of the specimen under specified conditions. If the specimen contains water, the water content shall be determined by Karl Fischer method or gas chromatography. If necessary, the density of the specimen shall be determined by appropriate methods according to the type of sample. Finally, the VOC content of the specimen is calculated. 5 Apparatus 5.1 Metal flat bottom dish Its diameter is (75±5) mm with edge height of 5mm, or other diameters can also be used if the specimen will not overflow. The mass m of the specimen used for the test is calculated using Equation (1), g: m=m_standard×(d/75)^2 (1) where, mstandard——the mass of the specimen when the dish is of standard diameter, g d—— the bottom diameter of the dish, mm; 75—— the standard diameter of the dish, mm. Note: For viscous coatings, aluminum foil with a thickness of about 0.1mm may be used. Cut the aluminum foil into a rectangle with a size of about (100±10) mm ×(300±10) mm that may be folded in half, and fully spread the viscous liquid by gently squeezing the folded parts. 5.2 Syringe Disposable syringe with a capacity of 1ml. 5.3 Oven Warning —— To prevent explosion or fire, samples containing volatile substances shall be handled with caution in accordance with the national relevant regulations. In order to ensure the safety of the test, a forced convection oven shall be selected, which can be kept within ±2°C of the specified or agreed temperature and equipped with a partition that can be horizontally placed. A natural convection oven equipped with a perforated metal partition at 1/3 height of the working chamber may also be used.
Contents of GB/T 34675-2017
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus 6 Sample 7 Test procedures 8 Test data processing
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