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GB/T 11942-2022 English PDF

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Q: Should I purchase the latest version GB/T 11942-2022?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 11942-2022 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$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 11942-2022: Test method of chroma for colour building materials
Status: Valid

GB/T 11942: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11942-2022	359	Add to Cart	4 days	Test method of chroma for colour building materials	Valid
GB/T 11942-1989	919	Add to Cart	4 days	Colorimetric methods for colour building materials	Obsolete

Similar standards

GB/T 35843 JG/T 481 JC/T 694 GB/T 45592 GB/T 44716

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Older Standard (superseded by this standard): GB/T 11942-1989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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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 11942-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 11942-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 11942-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 11942-2022_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 11942-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 11942-2022 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.