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GB/T 25808-2021 English PDF

US$179.00 · In stock
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GB/T 25808-2021: Sulphur black 2BR, 3B 200%
Status: Valid

GB/T 25808: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 25808-2021	English	179	Add to Cart	3 days [Need to translate]	Sulphur black 2BR, 3B 200%	Valid	GB/T 25808-2021
GB/T 25808-2010	English	90	Add to Cart	0--9 seconds. Auto-delivery	Sulphur black 2BR, 3B 200-percent	Obsolete	GB/T 25808-2010

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Basic data

Standard ID	GB/T 25808-2021 (GB/T25808-2021)
Description (Translated English)	Sulphur black 2BR, 3B 200%
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G57
Word Count Estimation	8,834
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 25808-2021: Sulphur black 2BR, 3B 200%

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Sulphur black 2BR, 3B:200% ICS 71:100:01; 87:060:10 CCSG57 National Standards of People's Republic of China Replacing GB/T 25808-2010 Sulfur black 2BR, 3B200% Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document replaces GB/T 25808-2010 "Sulfur Black 2BR, 3B:200%", compared with GB/T 25808-2010, except for structural adjustment In addition to editorial changes, the main technical changes are as follows: a) terms and definitions are added (see Chapter 3); b) Added colorimetric light indicators (see 4:1); c) Changed the control requirements and test methods for harmful aromatic amines (see 4:1, 6:5, 3:2 and 5:5 of the:2010 edition); d) Changed the appearance evaluation method (see 6:1, 5:1 of the:2010 edition); e) Added the content of dye standards (see 6:2:1); f) Changed the preparation method of dye bath (see 6:2:2:2, 5:2 of the:2010 edition); g) Added pad dyeing method (see 6:2:3): Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Petroleum and Chemical Industry Federation: This document is under the jurisdiction of the National Dyestuff Standardization Technical Committee (SAC/TC134): This document is drafted by: Shanxi Yinchang Chemical Co:, Ltd:, Shenyang Shenhua Institute Testing Technology Co:, Ltd:, Zhejiang Changzheng Chemical Co:, Ltd: Company, Shenyang Chemical Research Institute Co:, Ltd:, National Dyestuff Quality Supervision and Inspection Center: The main drafters of this document: Duan Rui, Ma Junqing, Gao Guoxin, Wang Yong, Xue Yan, Chen Xufeng, Jin Yonghui, Qin Huiqing, Ji Lanqin: The previous versions of this document and its superseded documents are as follows: ---First published in:2010 as GB/T 25808-2010; ---This is the first revision: Sulfur black 2BR, 3B200%

1 Scope

This document specifies the requirements, sampling, test methods and inspections of sulfide black 2BR, 3B200% (CI sulfide black 1, double sulfide black) products Rules and marking, labelling, packaging, transport and storage: This document is applicable to the product quality control of sulfide black 2BR, 3B200%: Structural formula: Sulfide of the following intermediates CASRN: 1326-82-5

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 2374-2017 General conditions for the determination of dyestuffs GB/T 2376-2013 Determination of Shade and Intensity of Sulfur Dyestuffs GB/T 2381-2013 Determination of insoluble matter content of dyes and dye intermediates GB/T 2386-2014 Determination of moisture content of dyestuffs and dyestuff intermediates GB/T 3920-2008 Textile color fastness test color fastness to rubbing GB/T 3921-2008 Textiles Color Fastness Test Color Fastness to Soaping GB/T 3922-2013 Textiles Color Fastness Test Color Fastness to Perspiration GB/T 4841:2-2006 Dye dyeing standard depth color card navy blue and black GB/T 6152-1997 Textiles Color Fastness Test Color Fastness to Heat Pressure GB/T 6678-2003 General rules for sampling of chemical products GB/T 6687 Dyestuff terminology GB/T 8427-2019 Color fastness test of textiles Color fastness to artificial light: Xenon arc GB 19601 Limits and Determination of 23 Harmful Aromatic Amines in Dye Products GB 20814 Limits and Determination of Heavy Metal Elements in Dyestuff Products GB/T 24101 Limit and determination of 4-aminoazobenzene in dye products

3 Terms and Definitions

Terms and definitions defined in GB/T 6687 apply to this document:

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Question 5: Should I purchase the latest version GB/T 25808-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25808-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.