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GB/T 21898-2023 English PDF

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

GB/T 21898: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 21898-2023English799 Add to Cart 6 days [Need to translate] Method of specification for textile colors Valid GB/T 21898-2023
GB/T 21898-2008English1319 Add to Cart 6 days [Need to translate] Method of specification for textile colors Obsolete GB/T 21898-2008

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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Older Standard (superseded by this standard) GB/T 21898-2008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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