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.
All technical contents of this standard are compulsory.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
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.
Limit of harmful substances of interior floor coatings
1 Scope
This standard specifies the terms and definitions, product classification, requirements, test methods, inspection rules and marks of package with respect to the allowable limits of harmful substances of interior floor coatings to human body and the environment.
Note: The interior refers to the interior of places with shelter at the top or at the top of and around them, such as industrial plants, underground parking lots, hospitals, schools and gymnasiums, which are relative to places without shelter at the top and around.
This standard is applicable to all kinds of interior floor coatings with organic polymer as the main adhesive, including primer, intermediate paint, finish paint and finish-coat paint, which are applied on the floor base surfaces of cement mortar, concrete, stone, plastic or steel and have decorative and protective effects on the floor as well as other special functions (e.g., antistatic, corrosion resistant, skid resistant, etc.).
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 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/T 18446-2009 Binders for paints and varnishes—Determination of monomeric diisocyanates in isocyanate resins
GB/T 23991-2009 Determination of soluble harmful elements content of coatings
GB/T 23993-2009 Determination of formaldehyde content of waterborne coatings—Spectrophtometric method with acetylacetone
GB 24613-2009 Limit of harmful substances of coatings for toys
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
volatile organic compounds (VOC)
any organic liquid and/or solid that may evaporate naturally at normal temperature and pressure of the atmospheric environment where it is present
[GB/T 5206-2015, Definition 2.270]
3.2
volatile organic compounds content
VOC content
mass of VOCs in coatings measured under prescribed conditions
[GB/T 5206-2015, Definition 2.271]
Note: VOC content in water-based floor coatings is expressed in grams per liter (g/L) after deducting water; VOC content in solvent-based and solvent-free floor coatings (deducting water content, if any) is expressed in grams per liter (g/L).
3.3
water-based floor coatings
floor coatings with water as main dispersion medium
3.4
solvent-based floor coatings
floor coatings with inactive organic solvents as main dispersion medium
3.5
solvent-free floor coatings
floor coatings that do not use volatile inactive organic solvents
4 Product classification
Interior floor coatings are classified into three categories, that is, water-based floor coatings, solvent-based floor coatings and solvent-free floor coatings.
5 Requirements
Limits of harmful substances in interior floor coatings 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 methods
7 Inspection rules
8 Marks of package
Annex A (Normative) Test for VOC content, total content of benzene, toluene, ethylbenzene and xylene, and total content of glycol ether and ether ester in water-based floor coatings by gas chromatography
Annex B (Normative) Test for water content
Annex C (Normative) Test for VOC content in solvent-based and solvent-free floor coatings
Annex D (Normative) Test for total content of benzene, toluene, ethylbenzene and xylene and total content of glycol ether and ether ester in solvent-based and solvent-free floor coatings by gas chromatography
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.
All technical contents of this standard are compulsory.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
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.
Limit of harmful substances of interior floor coatings
1 Scope
This standard specifies the terms and definitions, product classification, requirements, test methods, inspection rules and marks of package with respect to the allowable limits of harmful substances of interior floor coatings to human body and the environment.
Note: The interior refers to the interior of places with shelter at the top or at the top of and around them, such as industrial plants, underground parking lots, hospitals, schools and gymnasiums, which are relative to places without shelter at the top and around.
This standard is applicable to all kinds of interior floor coatings with organic polymer as the main adhesive, including primer, intermediate paint, finish paint and finish-coat paint, which are applied on the floor base surfaces of cement mortar, concrete, stone, plastic or steel and have decorative and protective effects on the floor as well as other special functions (e.g., antistatic, corrosion resistant, skid resistant, etc.).
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 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/T 18446-2009 Binders for paints and varnishes—Determination of monomeric diisocyanates in isocyanate resins
GB/T 23991-2009 Determination of soluble harmful elements content of coatings
GB/T 23993-2009 Determination of formaldehyde content of waterborne coatings—Spectrophtometric method with acetylacetone
GB 24613-2009 Limit of harmful substances of coatings for toys
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
volatile organic compounds (VOC)
any organic liquid and/or solid that may evaporate naturally at normal temperature and pressure of the atmospheric environment where it is present
[GB/T 5206-2015, Definition 2.270]
3.2
volatile organic compounds content
VOC content
mass of VOCs in coatings measured under prescribed conditions
[GB/T 5206-2015, Definition 2.271]
Note: VOC content in water-based floor coatings is expressed in grams per liter (g/L) after deducting water; VOC content in solvent-based and solvent-free floor coatings (deducting water content, if any) is expressed in grams per liter (g/L).
3.3
water-based floor coatings
floor coatings with water as main dispersion medium
3.4
solvent-based floor coatings
floor coatings with inactive organic solvents as main dispersion medium
3.5
solvent-free floor coatings
floor coatings that do not use volatile inactive organic solvents
4 Product classification
Interior floor coatings are classified into three categories, that is, water-based floor coatings, solvent-based floor coatings and solvent-free floor coatings.
5 Requirements
Limits of harmful substances in interior floor coatings shall be in accordance with those specified in Table 1.
Contents of GB 38468-2019
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Requirements
6 Test methods
7 Inspection rules
8 Marks of package
Annex A (Normative) Test for VOC content, total content of benzene, toluene, ethylbenzene and xylene, and total content of glycol ether and ether ester in water-based floor coatings by gas chromatography
Annex B (Normative) Test for water content
Annex C (Normative) Test for VOC content in solvent-based and solvent-free floor coatings
Annex D (Normative) Test for total content of benzene, toluene, ethylbenzene and xylene and total content of glycol ether and ether ester in solvent-based and solvent-free floor coatings by gas chromatography
