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GB 24410-2009 English PDF (GB24410-2009)

GB 24410-2009 English PDF (GB24410-2009)

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GB 24410-2009: Indoor decorating and refurbishing materials -- Limit of harmful substances of water based woodenware coatings

This standard specifies the requirements, test methods, inspection rules, packaging mark, coating safety and protection for the permissible limits of such substances harmful to human body and environment in the water based woodenware coatings for indoor decorating and refurbishing and water based putty for the woodenware.
GB 24410-2009
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 87.040
G 51
Indoor Decorating and Refurbishing Materials -
Limit of Harmful Substances of Water based
Woodenware Coatings
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ISSUED ON. SEPTEMBER 30, 2009
IMPLEMENTED ON. JUNE 1, 2010
Issued by. General Administration of Quality Supervision,
Inspection and Quarantine (AQSIQ);
Standardization Administration (SAC) of the People's
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 5
4 Requirements ... 5
5 Test Methods ... 6
6 Inspection Rules ... 7
7 Packaging Mark ... 7
8 Coating Safety and Protection ... 7
Appendix A (Normative) Test for Content of Volatile Organic Compound, Benzene Series, Glycol Ether and Its Esters - Gas Chromatography ... 9
Foreword
All technical contents of this standard are compulsory.
Appendix A of this standard is normative.
This standard was proposed by China Petroleum and Chemical Industry Association. This standard shall be under the jurisdiction of the National Technical Committee on Paints and Pigments of Standardization Administration of China.
Drafting organizations of this standard. Changzhou Paint and Coatings Industry Research Institute, Guangdong Huarun Paints Co., Ltd., ICI Swire Paints (China) Ltd., Guangdong Carpoly Chemical Co., Ltd., Nippon Paint (Guangzhou) Co., Ltd., Bayer Material Science Trading (Shanghai) Co., Ltd., BASF (China) Co., Ltd., Jiangsu Elephant East Asia Paint Co., Ltd., Sopel Chemical (Shanghai) Co., Ltd., Skshu Paint Co., Ltd., Nanjing Tianxiang coating Co. Ltd., Shanghai Zhongnan Building Material Company, China Paint (Shenzhen) Co., Ltd., Goldenfish Group Shijiangzhuang Paint Company, Hengchang Petrochemical Industry Co., Ltd., Nankang Austre Paint Co., Ltd., Kunshan Sunmun Science and Technology Development Co., Ltd. and Guangdong Hualong Knitting Co., Ltd.
Chief drafting staffs of this standard. Zhao Ling, Yu Bin, Kong Zhiyuan, Liu Hong, Chen Xiaowen, Xu Youwei, He Dandan, Shi Guoping, Yu Yunbiao, Yang Shaowu, Ceng Yiwen, Luo Qitao, Li Hongjin, Wang Daqi, Wang Zhi, Xi Guodong, Chen Shousheng, Zhang Qiang, Fang Xueping, Lv Shiming and Mai Quanwang.
Indoor Decorating and Refurbishing Materials ?€?
Limit of Harmful Substances of Water based Woodenware
Coatings
1 Scope
This standard specifies the requirements, test methods, inspection rules, packaging mark, coating safety and protection for the permissible limits of such substances harmful to human body and environment in the water based woodenware coatings for indoor decorating and refurbishing and water based putty for the woodenware. This standard is applicable to water based woodenware coatings for indoor decorating and refurbishing and industrial coating, and water based putty for the woodenware.
2 Normative References
The following standards contain the provisions which, through reference in this standard, constitute the provisions of this standard. For dated reference, the subsequent amendments (excluding corrigendum) or revisions of these publications do not apply. However, all parties who enter into an agreement according to this standard are encouraged to study whether the latest editions of these documents apply. For undated references, the latest edition of the normative document referred to applies.
GB/T 1250 Rules for Expression and Judgment of Limiting Values
GB/T 3186 Paints, Varnishes and Raw Materials for Paints and Varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)
GB/T 6750 Paints and Varnishes - Determination of Density - Pycnometer Method (GB/T 6750-2007, ISO 2811-1.1997, IDT)
GB/T 9750 Marks for Package of Coating Products
GB 18582-2008 Indoor Decorating and Refurbishing Materials - Limit of Harmful Substances of Interior Architectural Coatings
b For the powder putty, except that powder is directly determined for the soluble heavy metal, others are determined according to the specified mixture ratio of the product after mixing the powder with water, adhesive or other liquids. If the mixture ratio is certain range, water shall be determined after mixing according to the minimum mixture ratio of water consumption while other liquids such as adhesive shall be determined after mixing according to the maximum mixture ratio of the consumption.
5 Test Methods
5.1 Sampling
The product shall be sampled according to those specified in GB/T 3186. 5.2 Test methods
5.2.1 Volatile organic compounds content is tested according to those specified in Appendix A of this standard. Test results of coating product are calculated according to those specified in Article A.7.2 of Appendix A; those of putty product are calculated according to those specified in Article A.7.1 of Appendix A.
Note. moisture content and density tests are omitted for all the putty samples. 5.2.2 Content of benzene series (benzene, toluene, ethylbenzene and
dimethylbenzene) is tested according to those specified in Appendix A of this standard. The test results are calculated according to those specified in Article A.7.3 of Appendix A.
5.2.3 Content of glycol ether and its esters (ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, ethylene glycol ethyl ether, ethylene glycol ethyl ether acetate and diethylene glycol butyl ether acetate) is tested according to those specified in Appendix A of this standard. Test results are calculated according to those specified in A.7.4 of Appendix A.
5.2.4 Content of free formaldehyde is tested according to those specified in Appendix C of GB 18582-2008.
5.2.5 Content of soluble heavy metal (lead, cadmium, chromium and mercury) is tested according to those specified in Appendix D of GB l8582-2008 and its results are expressed in milligram of the soluble heavy metal containing in the film per kilogram. For the powder putter, it is directly tested with the powder.
Note. content of soluble lead, cadmium, chromium and mercury in the treated test solution may be determined with other appropriate analysis instruments, such as inductively coupled plasma atomic emission spectrometric method (ICP-OES); operation and test are carried out according to relevant instructions of the instrument manufacturer. Moreover, the adopted analysis instrument shall be indicated in the test report. Appendix A
(Normative)
Test for Content of Volatile Organic Compound, Benzene
Series, Glycol Ether and Its Esters - Gas Chromatography
A.1 Scope
This appendix specifies test methods for the content of volatile organic compounds (VOC), benzene series (benzene, toluene, ethylbenzene and dimethylbenzene), glycol ether and its esters (ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, ethylene glycol ethyl ether, ethylene glycol ethyl ether acetate and diethylene glycol butyl ether acetate) in water based woodenware coatings and water based putty.
A.2 Principle
After the sample is diluted, volatile organic compounds in the sample are separated through the gas chromatographic analysis technology; after qualitative identification of the measured compound, its content is tested by internal standard method. A.3 Materials and reagents
A.3.1 Carrier gas. nitrogen, with purity greater than or equal to 99. 995%. A.3.2 Gas. hydrogen, with purity greater than or equal to 99. 995%.
A.3.3 Combustion-supporting gas. air.
A.3.4 Auxiliary gas (septum purging and make-up gas). nitrogen of same nature with the carrier gas.
A.3.5 Internal standard substances. compounds absent in the sample; the compounds can be completely separated from other components on the
chromatogram. The purity is at least 99% (mass percent) or the purity is known. For example. isobutanol, ethylene glycol butyl ether and diethylene glycol dimethyl ether. A.3.6 Calibration compounds
In this standard, calibration compounds cover benzene, toluene, ethylbenzene, dimethylbenzene, ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, ethylene glycol ethyl ether, ethylene glycol ethyl ether acetate, diethylene glycol butyl ether acetate, acetone, ethanol, isopropanol, triethylamine, isobutanol, 1-butanol, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, acetic acid n-butyl ester, dimethylethanolamine, methyl isoamyl ketone, propylene glycol n-butyl ether, ethylene glycol butyl ether, 1,2-propylene glycol, ethylene glycol, N-methyl pyrrolidone, dipropylene glycol n-butyl ether, diethylene glycol monobutyl ether, propylene glycol phellyl ether, diethylene glycol and ethylene glycol phellyl ether. Purity of the calibration compound is at least 99% (mass fraction) or the purity is known.
A.3.7 Dilution solvent. organic solvent for diluting the sample; it doesn't contain any substance interfering the test. The purity is at least 99% (mas...

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