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Position: Chinese Standard in English/GB/T 6742-2007
GB/T 6742-2007   Paints and varnishes—Bend test(cylindrical mandrel) (English Version)
Standard No.: GB/T 6742-2007 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 4000 words Price(USD):100.0 remind me the price change

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Implemented on:2008-4-1 Delivery: via email in 1 business day
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Standard No.: GB/T 6742-2007
English Name: Paints and varnishes—Bend test(cylindrical mandrel)
Chinese Name: 色漆和清漆 弯曲试验(圆柱轴)
Chinese Classification: G50    Basic standard and general method for coating
Professional Classification: GB    National Standard
Issued by: AQSIQ; SAC
Issued on: 2007-9-11
Implemented on: 2008-4-1
Status: valid
Superseding:GB/T 6742-1986 Bend test for coating(cylindrical mandrel)
Language: English
File Format: PDF
Word Count: 4000 words
Price(USD): 100.0
Delivery: via email in 1 business day
1 Scope This standard specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment from a metal or plastic substrate when subjected to bending round a cylindrical mandrel under standard conditions. For a multicoat system, each coat may be tested separately or the complete system may be tested. The method specified may be carried out: — either as a “go/no go” test, by carrying out the test with a single specified size of mandrel, to assess compliance with a particular requirement; — or by repeating the procedure using successively smaller mandrels to determine the diameter of the first mandrel over which the coating cracks and/or becomes detached from the substrate. Two types of apparatus are specified, Type I being appropriate for use on test panels of thickness up to 0.3mm, and Type II for use on test panels of thickness up to 1.0mm. Both types of apparatus have been found to give similar results with the same coating, but normally only one will be used for testing a given product. 2 Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 3186-2006 Paints Varnishes and Raw Materials for Paints and Varnishes — Sampling (ISO 15528:2000, IDT) GB/T 9271 Paints and Varnishes — Standard Panels for Testing (GB/T 9271-1988, eqv ISO 1514:1984) GB 9278 Temperatures and Humidities for Conditioning and Testing of Paint Specimens (GB 9278-1988, eqv ISO 3270:1984, Paints and Varnishes and Their Raw Materials — Temperatures and Humidities for Conditioning and Testing)
GB/T 6742-2007 is referred in:
* SH/T 3022-2011 Design Specification for Anticorrosion Coating of Equipment and Piping in Petrochemical Engineering
* SH/T 3022-2011 Design Specification for Anticorrosion Coating of Equipment and Piping in Petrochemical Engineering
* GB 5237.4-2008 Wrought aluminium alloy extruded profiles for architecture - Part 4:Powder coating profiles
* CJ/T 120-2008 Coating plastic steel pipe for water supply
* TB/T 1527-2011 The protection coating anti-corrosion and specification for the supply of paints for railway steel bridge
* JT/T 722-2008 Specification of protective coating for highway bridge steel structure
* SY/T 6919-2012 Coating specification for petroleum drilling and servicing rigs
* GB/T 1735-2009 Paints and varnishes—Determination of heat resistance
*HG/T 5178-2017 Anticorrosive coatings for metal surface under insulation
*GB/T 8013.3-2018 Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 3:Organic polymer coatings
*HG/T 2454-2006 Solvent-thinned polyurethane coatings(two-component)
*GB/T 31817-2015 Specification of coating for corrosion protection of windpower equipments
*GB/T 5237.4-2017 Wrought aluminium alloy extruded profiles for architecture - Part 4:Powder coating profiles
*TJ/CL 252.2-2012 Technical Specification for Water Soluble Paints (Both Priming and Finishing Paints) for Use on Railway Wagons (Provisional)
*GB/T 28699-2012 Steel structure protection general requirements of coatings
Code of China
Standard
GB/T 6742-2007   Paints and varnishes—Bend test(cylindrical mandrel) (English Version)
Standard No.GB/T 6742-2007
Statusvalid
LanguageEnglish
File FormatPDF
Word Count4000 words
Price(USD)100.0
Implemented on2008-4-1
Deliveryvia email in 1 business day
Detail of GB/T 6742-2007
Standard No.
GB/T 6742-2007
English Name
Paints and varnishes—Bend test(cylindrical mandrel)
Chinese Name
色漆和清漆 弯曲试验(圆柱轴)
Chinese Classification
G50
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2007-9-11
Implemented on
2008-4-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 6742-1986 Bend test for coating(cylindrical mandrel)
Language
English
File Format
PDF
Word Count
4000 words
Price(USD)
100.0
Keywords
GB/T 6742-2007, GB 6742-2007, GBT 6742-2007, GB/T6742-2007, GB/T 6742, GB/T6742, GB6742-2007, GB 6742, GB6742, GBT6742-2007, GBT 6742, GBT6742
Introduction of GB/T 6742-2007
1 Scope This standard specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment from a metal or plastic substrate when subjected to bending round a cylindrical mandrel under standard conditions. For a multicoat system, each coat may be tested separately or the complete system may be tested. The method specified may be carried out: — either as a “go/no go” test, by carrying out the test with a single specified size of mandrel, to assess compliance with a particular requirement; — or by repeating the procedure using successively smaller mandrels to determine the diameter of the first mandrel over which the coating cracks and/or becomes detached from the substrate. Two types of apparatus are specified, Type I being appropriate for use on test panels of thickness up to 0.3mm, and Type II for use on test panels of thickness up to 1.0mm. Both types of apparatus have been found to give similar results with the same coating, but normally only one will be used for testing a given product. 2 Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 3186-2006 Paints Varnishes and Raw Materials for Paints and Varnishes — Sampling (ISO 15528:2000, IDT) GB/T 9271 Paints and Varnishes — Standard Panels for Testing (GB/T 9271-1988, eqv ISO 1514:1984) GB 9278 Temperatures and Humidities for Conditioning and Testing of Paint Specimens (GB 9278-1988, eqv ISO 3270:1984, Paints and Varnishes and Their Raw Materials — Temperatures and Humidities for Conditioning and Testing)
Contents of GB/T 6742-2007
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Keywords:
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