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GB/T 21898-2023 English PDF

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Q: Should I purchase the latest version GB/T 21898-2023?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21898-2023 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.

US$799.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21898-2023: Method of specification for textile colors
Status: Valid

GB/T 21898: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21898-2023	799	Add to Cart	6 days	Method of specification for textile colors	Valid
GB/T 21898-2008	1319	Add to Cart	6 days	Method of specification for textile colors	Obsolete

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Basic data

Standard ID: GB/T 21898-2023 (GB/T21898-2023)
Description (Translated English): Method of specification for textile colors
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A26
Classification of International Standard: 17.180.20
Word Count Estimation: 40,487
Date of Issue: 2023-09-07
Date of Implementation: 2024-01-01
Older Standard (superseded by this standard): GB/T 21898-2008
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 21898-2023: Method of specification for textile colors

---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.
ICS 17.180.20 CCSA26 National Standards of People's Republic of China Replace GB/T 21898-2008 Textile color representation method Published on 2023-09-07 2024-01-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 21898-2008 "Textile Color Representation Method". Compared with GB/T 21898-2008, except for structural adjustments In addition to editorial changes, the main technical changes are as follows. a) Changed the expression method of standard values (see 5.2, 4.2.5 of the.2008 version) b) Changed the method of determining the label (see 5.3, 4.2.5 and 5.2 of the.2008 edition); c) The measurement and color difference evaluation methods of the instrument have been changed (see 6.1, 5.1 and 5.2 of the.2008 edition); d) Added visual measurement and color difference evaluation methods (see 6.2); e) Added the correspondence between the brightness label and the brightness factor in normative appendix A (see Table A.1, Table 2 of the.2008 version); f) The color data values corresponding to the labels in Appendix B have been changed (see Table B.1, Table A.1 of the.2008 version). Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed and coordinated by the National Color Standardization Technical Committee (SAC/TC120). This document was drafted by. China Textile Information Center, Shanghai Yuancai Technology Co., Ltd. The main drafters of this document. Hu Song, Zhang Wei, Zhang Huishan, Huang Yan, Zhang Xiandou, Cang Ping, Xue Wenliang, Zhu Rongsheng, Mi Xi, Song Peng. This document was first published in.2008 and this is the first revision. Textile color representation method

1 Scope

This document specifies the color stereo, labeling, measurement and color difference evaluation of textile colors. This document is applicable to the expression of textile colors and can be used as a reference when expressing colors in other industries related to textiles.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 3977 Representation method of color GB/T 3978 Standard lighting bodies and geometric conditions GB/T 3979 Measurement method of object color GB/T 5698 color terminology GB/T 6529 Standard atmosphere for humidity conditioning and testing of textiles GB/T 7771 Determination of special metameric index changing illuminant GB/T 8424.3 Calculation of color difference in textile color fastness test GB/T 9340 Method for measuring color of fluorescent samples GB/T 15610 Visual evaluation method for metamerism ISO 23603 Standard method for assessing the quality of light sources using daylight simulators for the visual identification and measurement of color. CIE015 Colorimetry

3 Terms and definitions

The terms and definitions defined in GB/T 5698 and below apply to this document. 3.1 hue hue One of the three attributes of color vision, representing red, yellow, green, blue, purple and other characteristics. 3.2 lightness value One of the three attributes of color vision, it represents the characteristics of the lightness and darkness of the color of an object's surface, giving a gradation between ideal black and ideal white. 3.3 Chroma One of the three attributes of color vision, it represents the gray level of color on the surface of an object, expressed as the difference between the same brightness and achromatic color. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21898-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21898-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 21898-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21898-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 21898-2023?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21898-2023 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.