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GB/T 11942-2022: Test method of chroma for colour building materials
Status: Valid GB/T 11942: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11942-2022 | English | 359 |
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Test method of chroma for colour building materials
| Valid |
GB/T 11942-2022
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| GB/T 11942-1989 | English | 919 |
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Colorimetric methods for colour building materials
| Obsolete |
GB/T 11942-1989
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PDF similar to GB/T 11942-2022
Basic data | Standard ID | GB/T 11942-2022 (GB/T11942-2022) | | Description (Translated English) | Test method of chroma for colour building materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q04 | | Classification of International Standard | 91.100 | | Word Count Estimation | 18,140 | | Date of Issue | 2022-12-30 | | Date of Implementation | 2023-07-01 | | Older Standard (superseded by this standard) | GB/T 11942-1989 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 11942-2022: Test method of chroma for colour building materials---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 91.100
CCSQ04
National Standards of People's Republic of China
Replacing GB/T 11942-1989
Chromaticity measurement method of colored building materials
Posted on 2022-12-30
2023-07-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
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 for Standardization Documents"
drafting.
This document replaces GB/T 11942-1989 "Chromaticity Measurement Method for Colored Building Materials". Compared with GB/T 11942-1989, except for
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Deleted the separate provisions for simple spectrophotometers (see 4.2 of the 1989 edition);
b) Added the Luther condition (Luther condition) of photoelectric integration type colorimetric instruments (see 4.2);
c) Added the relevant content of CIE standard illuminant A (see 4.3.1);
d) Changed the "geometric conditions" (see 4.3.2, 4.5 of the 1989 edition);
e) Deleted the "working color board" and added "ceramic standard white board" and "standard sample of visible light reflectance of coated glass" (see Chapter 5,
Chapter 5 of the 1989 edition);
f) Change "measurement of tristimulus value" to "measurement of color" (see 7.2, 7.2 and 7.3 of the 1989 edition);
g) Deleted "calculation of dominant wavelength λD (or complementary color wavelength λC) and excitation purity Pe" (see 8.5 of the 1989 edition).
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by China Building Materials Federation.
This document is drafted by. Building Materials Industry Technology Supervision Research Center, Beijing Aobotai Technology Co., Ltd., Yuantest Testing Technology
(Jiangsu) Co., Ltd., Beixin Group Building Materials Co., Ltd., China Construction Eighth Bureau Fourth Construction Co., Ltd., Zhonghe Huafeng Construction Group Co., Ltd.
Co., Ltd., China Construction Second Engineering Bureau Co., Ltd., China Railway Eleventh Bureau Group Co., Ltd., Anhui Kaiyuan Road and Bridge Co., Ltd., China Construction
Zhuqiqi Engineering Bureau Co., Ltd., Suzhou Shiming Technology Co., Ltd., Shenzhen Sanenshi Technology Co., Ltd., Hangzhou Caipu Technology Co., Ltd.
Company, Ningbo Urban Infrastructure Construction and Development Center, Beijing Kangguang Optical Instrument Co., Ltd., Meichao Group Co., Ltd., Shaanxi University of Technology
China Railway Engineering Service Co., Ltd., China Road and Bridge Engineering Co., Ltd., China Railway Beijing Engineering Bureau Group Co., Ltd., Beijing Chentaike Instrument
Device Technology Co., Ltd.
The main drafters of this document. Wang Huan, Zhang Zhemin, Wu Wenjie, Liu Ying, Ni Yongcao, Han Yanzhang, Hu Zhongyuan, Wei Xueling, Huang Daquan, Yuan Jing,
Wang Xinping, Yuan Kun, Zhang Kun, Zhang Mao, Liu Fengxian, Luo Gansheng, Chen Qijian, Fu Yitie, Li Shengying, Peng Jianyao, Gong Lei, Lu Shiming, Su Chaoyang,
Zou Xiangyu, Li Kaifu, Sun Fangping, Yu Yang, Zhang Yaru, Zhang Shu, Yao Quande.
The release status of previous versions of this document and the documents it replaces are as follows.
---First released in 1983 as GB 3950-1983;
--- When it was revised for the first time in 1989, it was revised to GB/T 11942-1989;
--- This is the second revision.
Chromaticity measurement method of colored building materials
1 Scope
This document specifies the instrument, standard sample, sample, measurement, value calculation, and measurement report of the chromaticity measurement method for colored building materials.
This document applies to the colorimetric measurement of non-fluorescent colored building materials. This document does not apply to colored building materials with fluorescent properties
Color measurement.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document.
GB/T 3977 Color Representation Method
GB/T 3978 Standard illuminants and geometric conditions
GB/T 3979 Measurement method of object color
GB/T 5698 Color Terminology
3 Terms and Definitions
The following terms and definitions defined in GB/T 3978, GB/T 3979 and GB/T 5698 apply to this document.
3.1
Chroma
Quantitative indicators of object color properties.
4 instruments
4.1 Spectrophotometer
A spectrophotometric colorimeter is an instrument that can measure the spectral reflectance or spectral transmittance of a material and obtain color parameters through calculation. Light
The spectrophotometric colorimeter should meet the following conditions.
a) The wavelength range of the instrument used for chromaticity measurement should include 380nm~780nm, and the wavelength range of the instrument used for color difference measurement should be at least
Including 400nm~700nm;
b) The half width of the wavelength is generally not more than 5nm, and the maximum is not more than 10nm;
c) The wavelength error is not greater than 1nm;
d) The wavelength interval is not greater than 5nm;
e) The photometric accuracy should be within 0.5% of the full scale within the photometric range;
f) The instrument can be based on the selected standard chromaticity observer color matching function, CIE standard illuminant or the relative spectral function of the illuminant
Ratio distribution (see Appendix A), and the measured spectral transmittance and spectral reflectance calculated to obtain tristimulus values, tristimulus values
See Appendix B for the calculation of.
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