1 Scope
This standard specifies the permissible limit requirements, test methods, inspection rules, packaging marks, etc. of harmful substances of exterior wall coating which are harmful for human body and environment.
This standard is applicable to various water-based exterior wall coatings and solvent-based exterior wall coatings directly coated on site and used for decoration and protection for external surface of building with cement-based and other nonmetallic materials as the base material.
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 (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 1250 Rules for Expression and Judgment of Limiting Values
GB/T 1725-2007 Paints Varnishes and Plastics - Determination of Non-volatile-matter Content (ISO 3251:2003, IDT)
GB/T 3186 Paints Varnishes and Raw Materials for Paints and Varnishes - Sampling (GB/T 3186-2006,ISO 15528:2000, IDT)
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods (GB/T 6682-2008,ISO 3696:1987, MOD)
GB/T 6750-2007 Paints and Varnishes - Determination of Density - Pyknometer Method (ISO 2811-1:1997,Paints and Varnishes - Determination of Density - Part 1: Pyknometer Method, IDT)
GB/T 9750 Marks for Package of Coating Products
GB/T 18446-2009 Binders for Paints and Varnishes - Determination of Monomeric Diisocyanates in Isocyanate Resins (ISO 10283:2007, IDT)
GB/T 23993-2009 Determination of Formaldehyde Content of Waterborne Coatings - Spectrophtometric Method with Acetylacetone
3 Terms and Definitions
Foreword I
1 Scope 1
2 Normative References 1
3 Terms and Definitions 1
4 Product Classification 2
5 Requirements 2
6 Test Methods 3
7 Inspection Rules 4
8 Packaging Marks 5
Appendix A (Normative) Test of Total Content of VOC, Glycol Ether and Ether Ester in Water-based Exterior Wall Coating - Gas Chromatography 6
Appendix B (Normative) Test for Water Content 11
Appendix C (Normative) Test for Volatile Organic Compounds (VOC) Content of Solvent-based Exterior Wall Coatings 15
Appendix D (Normative) Test for Benzene, Toluene, Ethylbenzene, Dimethylbenzene, Glycol Ether and Ether Ester in Solvent-based Exterior Wall Coatings - Gas Chromatography Analysis Method 20
Appendix E (Normative) Test of Plumbum, Cadmium and Hydrargyrum Content in Exterior Wall Coating 24
Appendix F (Normative) Test of Hexavalent Chromium Content in Exterior Wall Coating 29
