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All the technical contents of this standard are mandatory.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB 18582-2008 Indoor decorating and refurbishing materials - Limit of harmful substances of interior architectural coatings and GB 24408-2009 Limit of harmful substances of exterior wall coatings. This standard is developed by reference to GB/T 18582-2008 and integrates the contents of GB/T 24408-2009. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 18582-2008:
——The scope of standard is modified (see Clause 1 hereof; Clause 1 of GB 18582-2008);
——In “Normative references", GB/T 601 and GB/T 1250 are deleted; GB/T 3186-2006 is changed to GB/T 3186, GB/T 6682 is changed to GB/T 6682-2008; GB/T 1725-2007, GB/T 8170-2008, GB/T 15258, GB/T 23985-2009, GB/T 23986-2009, GB/T 23990-2009, GB/T 23991-2009, GB/T 23992-2009, GB/T 23993-2009, GB/T 30647-2014 and GB/T 31414-2015 are added (see Clause 2 hereof; Clause 2 of GB 18582-2008);
——The terms and definitions of "building", "wall coating for building", "decorative coating", "effect pigment" and "application condition" are added (see Clause 3);
——The definitions of "volatile organic compounds" and "volatile organic compound content" are modified (see Clause 3 hereof; Clause 3 of GB 18582-2008);
—— Product classification is added (see Clause 4);
——"Water-based wall coating" is changed to "interior wall coating", "water based wall putty" is changed to "putty", "free formaldehyde" is changed to "formaldehyde content", "total of benzene, toluene, ethylbenzene and xylene" is changed to "total benzene content"; the indexes of "VOC content", "formaldehyde content" and "total content of benzene series" are modified. "lead (Pb)" items and indexes in "soluble heavy metals" are deleted; items and indexes of "total lead (Pb) content" and "total content of alkylphenol polyoxyethylene ether" are added (see Table 1 hereof; Table 1 of GB 18582-2008);
——"Exterior wall coating" and its items and indexes are added (see Table 1);
——"Decorative coating" and its items and indexes are added (see Sub-clause 5.2);
——The test methods for "VOC content", "formaldehyde content", " total content of benzene series" and "content of soluble heavy metal" are modified (see Sub-clause 6.2 hereof; Sub-clause 5.2 of GB 18582-2008);
——Test methods for "total lead (Pb) content", "total content of alkylphenol polyoxyethylene ether ", "total content of ethylene glycol ether and ether ester" and "total content of halogenated hydrocarbon" are added (see Sub-clause 6.2);
——The contents with regard to judgment of inspection results are modified (see Sub-clause 7.2 hereof; Sub-clause 6.2, GB 18582-2008);
——The contents with regard to the marks for the package are modified (see Clause 8 hereof; Sub-clause 7, GB 18582-2008);
——Painting safety and protection are deleted (see Clause 8, GB 18582-2008);
——Implementation of this standard is added (see Clause 9).
This standard was proposed by and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China.
The previous editions of this standard are as follows:
——GB 18582-2001, GB 18582-2008;
——GB 24408-2009.
Limit of harmful substances of architectural wall coatings
1 Scope
This standard specifies the product classification, requirements, test methods, inspection rules, marks for package and implementation of this standard involved in the allowable limit of harmful substances of architectural wall coatings to human body and environment.
This standard is applicable to various architectural wall coatings, which are directly applied on site or in factories and are used to decorate and protect the interior and exterior surfaces of buildings based on cement-based and other nonmetallic materials (except wood materials).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1725-2007 Paints Varnishes and Plastics - Determination of Non-volatile-matter content
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling
GB/T 6682-2008 Water for analytical laboratory use - specification and test methods
GB/T 6750-2007 Paints and varnishes - Determination of density - Pyknometer method
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 9750 Marks for package of coating products
GB 15258 General rules for preparation of precautionary label for chemicals
GB/T 23985-2009 Paints and varnishes - Determination of volatile organic compound (VOC) content - Difference method
GB/T 23986-2009 Paints and varnishes - Determination of volatile organic compound (VOC) content - Gas-chromatographic method
GB/T 23990-2009 Determination of the contents of benzene toluene ethylbenzene and xylene in coatings by gas chromatography
GB/T 23991-2009 Determination of soluble harmful elements content of coatings
GB/T 23992-2009 Determination of chlorhydrocarbon content in coatings - Gas chromatographic method
GB/T 23993-2009 Determination of formaldehyde content of waterborne coatings - Spectrophtometric method with acetylacetone
GB/T 30647-2014 Determination of harmful elements total content of coatings
GB/T 31414-2015 Water based coatings - Determination of surfactant - Alkylphenol polyethoxylates
3 Terms and definitions
For the purpose of this document, the following term and definition apply.
3.1
building
a space or entity constructed of building materials for people to live and perform various activities
[See Definition 2.1.4 in GB/T 50504-2009]
Note: for example, residential buildings, office buildings, plants, warehouses, shopping malls, stadiums, exhibition halls, libraries, hospitals, schools, airports, stations, theaters, churches, etc.
3.2
architectural wall coatings
wall coating applied to the interior and exterior surfaces of buildings with cement-based and other nonmetallic materials (except wood materials) as substrates.
3.3
decorative panel coatings
a type of coating applied to panel-like products (except metal materials) with heat insulation and decoration functions on the surface of architectural walls
Note: decorative panels mainly include asbestos-free calcium silicate panel, asbestos-free fiber cement panel, natural granite thin stone, glass, porcelain panel, ceramic panel, etc.
3.4
effect pigment
usually as a flake pigment, it can provide some other performances in addition to color, such as rainbow color (formed by light interference on a thin layer), different color with angle (color change, color jump, color shade change) or texture.
[See Definition 2.91 in GB/T 5206-2015]
3.5
volatile organic compound
VOC
an organic compound that participates in atmospheric photochemical reactions, or determined in accordance with relevant provisions
3.6
volatile organic compound content
VOC content
the mass of volatile organic compound contained in coatings measured under specified conditions
[See Definition 2.271 in GB/T 5206-2015]
3.7
application condition
the condition that the application can be carried out after all components of the products are mixed when the application method and application criteria meet the requirements given in the technical specifications of the corresponding products
4 Product classification
For the purposes of this standard, the architectural wall coatings are classified into water-based wall coatings and decorative panel coatings. Among them, water-based wall coatings are classified into: interior wall coatings, exterior wall coatings, putty; exterior wall coatings are classified into effect pigments and other coatings. Decorative panel coatings are classified into water-based decorative panel coatings and solvent-based decorative panel coatings. Water-based decorative panel coatings are classified into synthetic resin emulsion coatings and other coatings, solvent-based decorative panel coatings are classified into coatings containing effect pigments and other coatings.
5 Requirements
5.1 The limit value of harmful substances in water-based wall coating shall be in accordance with those specified in Table 1.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Requirements
6 Test method
7 Inspection rules
8 Marks for package
9 Implementation of this standard
Annex A (Normative) Determination of moisture content - Gas chromatographic method
Bibliography
