GB/T 38597-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 38597-2020 | English | 165 |
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Technical requirement for low-volatile-organic-compound-content coatings product
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GB/T 38597-2020: Technical requirement for low-volatile-organic-compound-content coatings product---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT38597-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 51
Technical requirement for low-volatile-organic-
compound-content coatings product
Issued on. MARCH 31, 2020
Implemented on. FEBRUARY 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 7
4 Requirements... 8
5 Test methods... 12
6 Rules for determination... 14
7 Packaging marks... 14
8 Implementation of standard... 15
Annex A (normative) Determination of moisture content - Gas chromatography
... 16
Bibliography... 20
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Petroleum and Chemical Industry
Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Coatings and Pigments of Standardization Administration of China (SAC/TC
5).
The drafting organizations of this Standard. Environmental Planning Institute,
Ministry of Ecology and Environment, China Coatings Industry Association,
China Petroleum and Chemical Industry Federation, CNOOC Changzhou
Coating Chemical Research Institute Co., Ltd.
Main drafters of this Standard. Wang Ning, Ji Junhong, Li Li, Yang Jianhai, Xue
Yan, Tang Ying, Su Chunhai, Ning Miao, Wang Zhen.
1 Scope
This Standard specifies requirements, test methods, rules for determination,
packaging marks, implementation of standard for low-volatile-organic-
compound-content coatings product.
This Standard is applicable to the determination of low-volatile-organic-
compound-content coatings product.
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 5206-2015, Paints and varnishes - Terms and definitions
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
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
5206-2015 as well as the followings apply. For ease of use, some terms and
definitions in GB/T 5206-2015 are listed repeatedly below.
3.1 low-volatile-organic-compound-content coatings product
The coating product that under application condition, the quality of the volatile
organic compounds present in the coating products meets the volatile organic
compound content limit requirements of the corresponding products in this
Standard.
3.2 coating material
Liquid, paste or powder product. When it is applied to the substrate, it can form
a coating with protection, decoration and/or other special functions.
[GB/T 5206-2015, definition 2.51]
3.5 application condition
The state that when the construction method and construction conditions meet
the requirements in the corresponding product technical specification, after all
the components of the product are mixed, construction can be carried out.
4 Requirements
The limit value of VOC content in water-based coatings shall meet the
requirements of Table 1.The limit value of VOC content in solvent-based
coatings shall meet the requirements of Table 2.The limit value of VOC content
in solvent-free coatings shall meet the requirements of Table 3.
5 Test methods
5.1 Sampling
The product is sampled according to GB/T 3186, or according to the agreed
method. Sampling amount is determined according to inspection needs.
5.2 Test methods
5.2.2 VOC content
5.2.2.1 Density
Carry out according to GB/T 6750-2007.The test temperature is (23±0.5)°C.
5.2.2.2 VOC content in water-based coating
5.2.2.5 VOC content in radiation curing coatings
In accordance with GB/T 34675-2017.
The calculation of VOC content in water-based radiation curable coatings is
carried out according to 8.4 in GB/T 34675-2017.The moisture content is
determined in accordance with the provisions of Annex A.
6 Rules for determination
6.1 The test result is determined according to the rounding-off comparison
method in GB/T 8170-2008.
6.2 When the VOC content in the application condition is indicated in the
inspection report, the application condition shall be determined according to the
provisions of 5.2.1.
7 Packaging marks
7.1 In addition to the product packaging mark shall meet the requirements of
GB/T 9750, products that have passed the inspection according to this
Standard can be clearly indicated on the packaging mark.
7.2 The construction ratio in the application condition shall be specified on the
packaging mark or in the product manual.
7.3 The classification, product category and product type (or application method)
conformity to this Standard shall be indicated on the packaging mark or in the
product manual.
7.4 Solvent-based coatings containing reactive diluents shall be clearly
indicated on the package mark or in the product manual.
7.6 For polyurethane, epoxy and other multi-component curing coatings, the
applicable period shall be indicated on the package mark or in the product
manual.
8 Implementation of standard
8.1 The VOC content in powder coatings, inorganic architectural coatings
(including architectural inorganic powder coating materials), and organic
powder coatings for construction is usually low.
8.2 When spot-checking coating products under application condition at the
painting site, the sampling inspection of multi-component cured coatings shall
be carried out within the applicable period of the product.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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