GB 18581-2020_English: PDF (GB18581-2020)
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Limit of harmful substances of woodenware coatings
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GB 18581-2020
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| GB 18581-2009 | English | 85 |
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Indoor decorating and refurbishing materials -- Limit of harmful substances of solvent based coatings for woodenware
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| GB 18581-2001 | English | 439 |
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Indoor decorating and refurbishing materials -- Limit of harmful substances of solvent coatings for woodenware
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GB 18581-2001
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| Standard ID | GB 18581-2020 (GB18581-2020) | | Description (Translated English) | Limit of harmful substances of woodenware coatings | | Sector / Industry | National Standard | | Classification of Chinese Standard | G51 | | Classification of International Standard | 87.040 | | Word Count Estimation | 14,190 | | Date of Issue | 2020-03-04 | | Date of Implementation | 2020-12-01 | | Administrative Organization | Ministry of Industry and Information Technology of the People's Republic of China | | Proposing organization | Ministry of Industry and Information Technology of the People's Republic of China | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB 18581-2009 (GB18581-2009) | | Description (Translated English) | Indoor decorating and refurbishing materials. Limit of harmful substances of solvent based coatings for woodenware | | Sector / Industry | National Standard | | Classification of Chinese Standard | G51 | | Classification of International Standard | 87.040 | | Word Count Estimation | 16,152 | | Date of Issue | 2009-09-30 | | Date of Implementation | 2010-06-01 | | Older Standard (superseded by this standard) | GB 18581-2001 | | Quoted Standard | GB/T 1250; GB/T 1725-2007; GB/T 3186; GB/T 6750-2007; GB/T 9750; GB/T 9754-2007; GB/T 18446-2009; GB 18582-2008 | | Drafting Organization | CNOOC Changzhou Paint & Chemicals Research Institute | | Administrative Organization | National Standardization Technical Committee of paints and pigments | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 10 of 2009 (No. 150 overall) | | Proposing organization | China Petroleum and Chemical Industry Association | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This Chinese standard specifies the interior decoration with polyurethane, nitro and alkyd solvent -based coatings and solvent -based wood putty to humans and the environment of allowable limits for hazardous substances requirements, test methods, inspection rules, packaging, signs, painting safety and protection and so on. This standard applies to interior decoration and the factory coating with polyurethane, nitro and alkyd solvent -based coatings (including primer and paint) and solvent -based wood putty. Does not apply to radiation curable coatings and unsaturated polyester putty. | | Standard ID | GB 18581-2001 (GB18581-2001) | | Description (Translated English) | Indoor decorating and refurbishing materials--Limit of harmful substances of solvent coatings for woodenware | | Sector / Industry | National Standard | | Classification of Chinese Standard | G51 | | Classification of International Standard | 87.04 | | Word Count Estimation | 11,141 | | Date of Issue | 2001/12/10 | | Date of Implementation | 2002/1/1 | | Quoted Standard | GB/T 1250-1989; GB 3186-1982 (1989); GB/T 6682-1992; GB/T 6750-1986; GB/T 6751-1986; GB/T 9750-1998; GB/T 9758.1-1988; GB/T 9758.4-1988; GB/T 9758.6-1988; GB/T 9758.7-1988; GB/T 18446-2001, | | Adopted Standard | 1999/10/EC, NEQ; BS 5665-1989, NEQ; DIN EN 71-1989, NEQ; NF EN 71-3, NEQ; EN 71-1988, NEQ | | Regulation (derived from) | Announcement of Newly Approved National Standards 2009 No. 10 (No. 150 overall) | | Proposing organization | China Petroleum and Chemical Industry Association | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China | | Summary | This Standard specifies the technical requirements for medical flexible PVC tubing, test methods, inspection rules, marking, packaging, transportation and storage. This Standard is applicable to polyvinyl chloride resin as the main raw material, with a particular medical technology made of soft PVC pipe. |
GB 18581-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 51
Replacing GB 18581-2009, GB 24410-2009
Limit of Harmful Substances of Woodenware Coatings
ISSUED ON: MARCH 04, 2020
IMPLEMENTED ON: DECEMBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Product Classification ... 7
5 requirements ... 8
6 Test Methods ... 11
7 Inspection Rules ... 13
8 Packaging Mark ... 14
9 Implementation of Standard ... 15
Appendix A (Normative) Determination of Moisture Content – Gas
Chromatography ... 16
Bibliography ... 20
Limit of Harmful Substances of Woodenware Coatings
1 Scope
This Standard specifies the product classification, requirements, test methods,
inspection rules, packaging marks and implementation of the standards involved in the
allowable limits of substances harmful to humans and the environment in woodenware
coatings.
This Standard is applicable to all types of woodenware coatings for on-site and factory
coatings such as filler, primer and topcoat except for special functional coatings such
as Lacquer, bridging paint, wood stain, open effect paint, etc.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
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 - Pycnometer
Method
GB/T 8170-2008 Rules of Rounding off for Numerical Values & Expression and
Judgement of Limiting Values
GB/T 9750 Marks for Package of Coating Product
GB/T 9754-2007 Paints and Varnishes - Determination of Specular Gloss of Non-
Metallic Paint Films at 20°, 60°and 85°
GB/T 18446-2009 Binders for Paints and Varnishes - Determination of Monomeric
Diisocyanate in Isocyanate Resins
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 Chlorohydrocarbon Content in Coatings - Gas
Chromatographic Method
GB/T 23993-2009 Determination of Formaldehyde Content of Waterborne
Coatings -Spectrophotometric Method with Acetylacetone
GB/T 30646-2014 Determination of Phthalate Plasticizers Content in Coatings -
Gas Chromatography/Mass Spectrometry Method
GB/T 30647-2014 Determination of Harmful Elements Total Content of Coatings
GB/T 31414-2015 Water Based Coatings - Determination of Surfactant -
Alkylphenol Ethoxylates
GB/T 34675-2017 Determination of Volatile Organic Compound (VOC) Content in
Radiation Curable Coatings
GB/T 34682-2017 Determination of Volatile Organic Compound (VOC) Content in
Reactive Diluent Containing Coatings
GB/T 36488-2018 Determination of Polycyclic Aromatic Hydrocarbons in Coatings
3 Terms and Definitions
For the purpose of this document, the following terms and definitions apply.
3.1 Polyurethane coatings
A type of coating that uses polyurethane resin formed by the reaction of polyisocyanate
and active hydrogen-containing compound as the main film-forming material.
3.2 Nitrocellulose coatings
6 Test Methods
6.1 Sampling
Sampling according to the provisions of GB/T 3186, or according to the agreed method.
The sampling amount is determined according to the inspection requirements.
6.2 Test methods
6.2.1 VOC content
6.2.1.1 Density
Perform according to the provisions of GB/T 6750-2007; the test temperature is
(23±0.5) °C.
6.2.1.2 Luster
Perform according to the provisions of GB/T 9754-2007. Use a wet film preparation
device with a groove depth of (100 ± 2) µm to prepare a sample plate on a flat glass
plate. The varnish shall use black glass or flat glass with a matte black paint on the
back as the substrate. After drying the sample plate for 48h at a temperature of
(23±2) °C and a relative humidity of (50±5) %, test it with a 60° specular gloss meter.
6.2.1.3 Moisture content
Perform according to the provisions of Appendix A.
6.2.1.4 VOC content in solvent-based coatings (polyurethane, nitrocellulose,
alkyd and their corresponding fillers)
The non-aqueous solvent-based paint shall be carried out in accordance with the
provisions of GB/T 23985-2009. The non-volatile content is carried out in accordance
with the provisions of GB/T 1725-2007. Weigh about 1g of the sample and the baking
condition is (105±2) °C/1h. The moisture shall not be measured, the moisture content
is set to zero. The calculation of VOC content is carried out according to 8.3 of GB/T
23985-2009.
Solvent-based coatings intentionally added with water shall be carried out in
accordance with the provisions of GB/T 23985-2009. The non-volatile content is
carried out in accordance with the provisions of GB/T 1725-2007. Weigh about 1g of
the sample and the baking condition is (105±2) °C/1h. The calculation of VOC content
is carried out according to 8.4 of GB/T 23985-2009.
6.2.1.5 VOC content in solvent-based coatings (unsaturated polyester and its
filler)
6.2.5 Total sum content of glycol ether and ether ester
Perform according to the provisions of GB/T 23986-2009. The calculation of the
content of glycol ether and ether ester is carried out according to 10.2 in GB/T 23986-
2009; and converted into milligrams per kilogram (mg/kg).
6.2.6 Benzene content, total sum content of toluene and xylene (including
ethylbenzene)
Perform according to the Method A specified in GB/T 23990-2009. The calculation of
benzene content, toluene and xylene (including ethylbenzene) content are carried out
according to 8.4.3 of GB/T 23990-2009.
6.2.7 Total sum content of benzene series
Perform according to the Method B specified in GB/T 23990-2009. The calculation of
benzene series content is carried out according to 9.4.3 of GB/T 23990-2009.
6.2.8 Total sum content of polycyclic aromatic hydrocarbons
Perform according to the provisions of GB/T 36488-2018.
6.2.9 The total sum content of free diisocyanate
Perform according to the provisions of GB/T 18446-2009.
6.2.10 Methanol content
Perform according to the provisions of GB/T 23986-2009. The calculation of methanol
content is carried out according to 10.2 of GB/T 23986-2009.
6.2.11 Total sum content of halogenated hydrocarbons
Perform according to the provisions of GB/T 23992-2009. The calculation of
halogenated hydrocarbon content is carried out according to 8.5.2 of GB/T 23992-2009.
6.2.12 Total sum content of phthalic acid ester
Perform according to the provisions of GB/T 30646-2014.
6.2.13 Total content of alkylphenol ethoxylates
Perform according to the provisions of GB/T 31414-2015.
7 Inspection Rules
7.1 Type inspection
Appendix A
(Normative)
Determination of Moisture Content – Gas Chromatography
A.1 Reagents and materials
A.1.1 Distilled water: meet the requirements of Grade-3 water in GB/T 6682-2008.
A.1.2 Dilution solvent: The organic solvent used to dilute the specimen and dried by
molecular sieve does not contain any substances that interfere with the test. The purity
is at least 99% (mass fraction), or the purity is known. For example, dimethylformamide
and so on.
A.1.3 Internal standard substance: a compound that does not exist in the specimen
and is dried by molecular sieve; and the compound may be completely separated from
other components on the chromatogram. The purity is at least 99% (mass fraction), or
the purity is known. For example, isopropanol, etc.
A.1.4 Molecular sieve: the pore size is 0.2nm~0.3nm; and the particle size is
1.7mm~5.0mm. Molecular sieve shall be used after regeneration.
A.1.5 Carrier gas: hydrogen or helium, purity ≥99.995%.
A.2 Apparatus
A.2.1 Gas chromatograph: equipped with thermal conductivity detector and
temperature program controller.
A.2.2 Chromatographic column: capillary column of styrene-divinylbenzene porous
polymer.
NOTE: Other chromatographic columns that meet the inspection requirements may also be
used.
A.2.3 Sampler: Micro syringe, 10μL.
A.2.4 Sample bottle: about 10mL glass bottle with a sealable cap.
A.2.5 Balance: the actual division value d=0.1mg.
A.3 Gas chromatography test conditions
A.3.1 Chromatographic column: capillary column of styrene-divinylbenzene porous
polymer, 25m×0.53mm×10μm.
......
GB 18581-2009
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 51
Replacing GB 18581-2001
Indoor decorating and refurbishing materials - Limit of
harmful substances of solvent based coatings for
woodenware
室内装饰装修材料
ISSUED ON. SEPTEMBER 30, 2009
IMPLEMENTED ON. JUNE 01, 2010
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Requirements ... 7
5 Test method ... 8
6 Inspection rules ... 8
7 Packaging mark ... 9
8 Painting safety and protection ... 9
Appendix A (Normative) Determination of volatile organic compounds (VOC)
content ... 10
Appendix B (Normative) Determination of benzene, toluene, ethylbenzene,
xylene and methanol content ... 17
Appendix C (Normative) Determination of halogenated hydrocarbon content 22
Foreword
All the technical contents of this standard are mandatory.
The standard replaces GB 18581-2001 “Indoor decorating and refurbishing
materials - Limit of harmful substances of solvent based coatings for
woodenware”.
As compared with GB 18581-2001, main technical changes of this standard
are as follows.
- DEFINE the scope of application as the polyurethane, nitro and alkyd
solvent based coatings (including primer and finish) for woodware AND the
solvent based putty for woodware for the purposes of indoor decorating &
refurbishing and factory coating;
- In the scope of application, ADD the solvent based putty for woodware;
and SPECIFY the limit of harmful substance;
- In the scope of application, SPECIFY clearly that it is not applicable to the
radiation curing coatings and unsaturated polyester putty;
- In the nitro-based paint, ADD the methanol content control items;
- DEFINE the total content control item of toluene and xylene as the total
content control item of toluene, ethylbenzene and xylene;
- CHANGE the original standard free toluene diisocyanate (TDI) content
control item to free diisocyanate (TDI, HDI) total content control item;
- ADD the halogenated hydrocarbon content control item;
- MAKE the limits of the total content of volatile organic compounds, free
diisocyanate (TDI, HDI) total content, total content of toluene,
ethylbenzene and xylene, and the benzene content in the coating more
stringent.
- ADD the definition of volatile organic compounds and volatile organic
compounds content; ESTABLISH the corresponding test methods;
- ESTABLISH the test methods of methanol and halogenated hydrocarbon
content;
- MODIFY and IMPROVE the benzene, toluene, ethylbenzene and xylene
content test method;
Indoor decorating and refurbishing materials - Limit of
harmful substances of solvent based coatings for
woodenware
1 Scope
This standard specifies the allowable limit value requirements, test methods,
inspection rules, packaging marks, coating safety and protection, etc., of the
human and environmental harmful substances in polyurethane, nitro and alkyd
solvent based coatings of woodware AND the solvent based putty of
woodware for indoor decorating and refurbishing purposes.
This standard applies to the polyurethane, nitro and alkyd solvent based
coatings (including primer and finish) for woodware AND the solvent based
putty for woodware for the purposes of indoor decorating & refurbishing and
factory coating. It does not apply to radiation curing coatings and unsaturated
polyester putty.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 1250 Method of expression and determination of limit value
GB/T 1725-2007 Paints varnishes and plastics - Determination of
non-volatile-matter content (ISO 3251.2003, IDT)
GB/T 3186 Paint, varnishes and raw materials for paints and varnishes -
Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)
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 9754-2007 Paints and varnishes - Determination of specular gloss of
non-metallic paint films at 20°, 60° and 85°(ISO 2813.1994, IDT)
GB/T 18446-2009 Binders for paints and varnishes - Determination of
monomeric diisocyanates in isocyanate resins (ISO 10283.2007, IDT)
GB 18582-2008 Indoor decorating and refurbishing materials - Limit of
harmful substances of interior architectural coatings
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Volatile organic compounds (VOC)
It refers to, at the standard atmospheric pressure of 101.3 kPa, any organic
compound having an initial boiling point of less than or equal to 250 °C.
3.2
Volatile organic compounds content
It refers to the content of the volatile organic compounds as obtained
through testing the product by the specified test methods.
3.3
Polyurethane coatings
It refers to a kind of coating for which the main film forming substance is the
polyamine (methacrylic acid) ester resin which is formed by the reaction of
polyisocyanate and an active hydrogen-containing compound.
3.4
Nitrocellulose coatings
It refers to a kind of coating for which the main film forming substance is the
nitric acid cellulose which is formed by the esterification reaction between
the mixture of nitric acid and sulfuric acid and cellulose.
3.5
- In case of major change in the production formula, process, the key source
of raw materials and product construction proportioning;
- In case of production restoration after suspension for three months.
6.2 Determination of test results
6.2.1 The test results shall be determined in accordance with the rounding off
value comparison method in GB/T 1250. When the test result after rounding off
is 0, 0.0, the result is reported as one significant digit.
6.2.2 While reporting the inspection results, it shall indicate at the same time
the stated construction proportioning of the product.
6.2.3 When the test results of all the items reach to the requirements of this
standard, the products comply with the requirements of this standard.
7 Packaging mark
7.1 The product packaging mark may, in addition to comply with the provisions
of GB/T 9750, be indicated accordingly if passing the inspection in accordance
with this standard.
7.2 As for the coating and putty composed of double components or multiple
components, it shall clarify the construction proportioning of each component
on the packing mark or product instruction manual. As for the coating and putty
requiring dilution before use, it shall clarify the dilution proportion in the packing
mark or the product instruction manual.
8 Painting safety and protection
8.1 The room shall be well ventilated during painting.
8.2 The construction workers shall wear the necessary protective equipment
during coating.
8.3 After completion of coating, it shall continuously maintain the indoor air
circulation.
Split ratio. split sample injection, with the split ratio adjustable;
Injection volume. 1.0 μL.
Note. It may also select the optimal gas chromatographic test conditions in
accordance with the performance of the instrument used and the actual
conditions of the sample to be tested.
A.5 Test procedures
All tests shall be subjected to secondary parallel determination.
A.5.1 Density
PREPARE the mixed sample in accordance with the stated construction
proportioning of the product; after stirring it uniformly, DETERMINE the sample
density in accordance with the provisions of GB/T 6750-2007, at the test
temperature of (23 ± 2) °C.
A.5.2 Volatile content
PREPARE the mixed sample in accordance with the stated construction
proportioning of the product; after stirring it uniformly, DETERMINE the content
of the non-volatile compound of the sample in accordance with the provisions
of GB/T 1725-2007, in grams per gram (g/g); USE 1 to minus the content of the
non-volatile compound to obtain the content of the volatile compound, in grams
per gram (g/g). WEIGH the sample amount (1 ± 0.1) g, AND the test conditions.
(105 ± 2) °C/h.
A.5.3 Gloss
The polyurethane coating film gloss is determined in accordance with the
provisions of GB/T 9754-2007. PREPARE the mixed s...
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