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GB/T 2387-2025 English PDF

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US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 2387-2025: Reactive dyes - Determination of shade and relative strength
Status: Valid

GB/T 2387: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2387-2025	279	Add to Cart	3 days	Reactive dyes - Determination of shade and relative strength	Valid
GB/T 2387-2013	189	Add to Cart	3 days	Reactive dyes -- Determination of shade and relative strength	Valid
GB/T 2387-2006	279	Add to Cart	3 days	Reactive dyes -- Determination of shade and relative strength	Obsolete
GB/T 2387-2003	239	Add to Cart	2 days	Reactive dyes -- Determination of dyeing shade and relative strength	Obsolete
GB/T 2387-1980	199	Add to Cart	2 days	Method for the determination of shade and colouring strength for dyeing reactive dyes	Obsolete

Basic data

Standard ID: GB/T 2387-2025 (GB/T2387-2025)
Description (Translated English): Reactive dyes - Determination of shade and relative strength
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 14,138
Date of Issue: 2025-08-29
Date of Implementation: 2026-03-01
Older Standard (superseded by this standard): GB/T 2387-2013, GB/T 33053-2016, GB/T 33788-2017
Issuing agency(ies): State Administration for Market Regulation, National Standardization Administration

GB/T 2387-2025: Reactive dyes - Determination of shade and relative strength

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT2387-2025
ICS 71.100.01;87.060.10 CCSG55 National Standard of the People's Republic of China Replace GB/T 2387-2013, GB/T 33788-2017, GB/T 33053-2016 Determination of color and intensity of reactive dyes Released on August 29, 2025 Implementation on March 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface

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 2387-2013 “Determination of color and intensity of reactive dyes” and GB/T 33788-2017 “Determination of color and intensity of reactive dyes”. Low-salt dyeing method for wool and determination of color and strength" and GB/T 33053-2016 "Determination of color and strength of reactive dyes for wool". GB/T 2387-2013 is the main version, and it integrates the contents of GB/T 33788-2017 and GB/T 33053-2016. Compared with other documents, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The scope of application has been changed (see Chapter 1, Chapter 1 of GB/T 2387-2013); b) Added terms and definitions (see Chapter 3); c) The expression of liquor ratio has been changed [see 7.1.1.1b), 6.1.1.3 of GB/T 2387-2013]; d) The dyeing conditions have been changed (see Table 1, Table 1 of GB/T 2387-2013); e) The scope of application of the pad dyeing method has been changed (see 7.1.2.1.1, 6.2.1 of GB/T 2387-2013); f) Added the rolling pile method (see 7.1.2.2); g) Added the determination of reactive dyes for wool (see 7.2). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Dyes (SAC/TC134). This document was drafted by. Zhejiang Ruihua Chemical Co., Ltd., Taixing Jinyun Dye Co., Ltd., Shenyang Shenyang Institute of Chemical Technology Testing Technology Co., Ltd., Shenyang Research Institute of Chemical Industry Co., Ltd. and Chuanhao Zhilian Co., Ltd. The main drafters of this document are. He Jiangwei, Ding Jun, Yang Zhenmei, Li Jingyi, Ruan Fangping, Zhao Ting, Cai Yongjun, Lu Jun, and Fang Yanbo. The previous versions of this document and the documents it replaces are as follows. --- First issued as GB/T 2387-1980 in 1980, first revised in.2003; ---In the second revision in.2006, GB/T 2388-2003 "Determination of color and intensity of reactive dye printing" was incorporated (The previous versions of GB/T 2388-2003 are. GB 2388-1980); the third revision in.2013; --- This is the fourth revision, incorporating GB/T 33788-2017 "Determination of color and intensity of reactive dyes - Low salt dyeing GB/T 33053-2016 “Determination of shade and intensity of reactive dyes for wool”. Determination of color and intensity of reactive dyes

1 Scope

This document describes the method for determining the colorimetry and intensity of reactive dyes. This document applies to the determination of shade and intensity of reactive dyes for cellulose and wool.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 2374-2017 General conditions for determination of dye staining GB/T 6687 Terminology of dyes GB/T 6688-2008 Instrumental method for determination of relative intensity and color difference of dyes

3 Terms and Definitions

The terms and definitions defined in GB/T 6687 and the following apply to this document. 3.1 X-type reactive dye The dye molecular structure contains a reactive dye with dichlorotriazine active groups. 3.2 K-type reactive dye The dye molecule contains a reactive dye with a monochlorotriazine active group. 3.3 KE-type reactive dye The dye molecule contains two reactive monochlorotriazine groups. 3.4 KN-type reactive dye The dye molecule contains a reactive dye with a β-vinylsulfone active group. 3.5 M-type reactive dye The dye molecular structure contains two different active groups. monochlorotriazine and β-vinyl sulfone.

4 Principles

Use the reactive dye sample and the same type of standard sample to color on cellulose fiber or wool under the same conditions, and then use the standard sample to ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 2387-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 2387-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 2387-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 2387-2025_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 2387-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2387-2025 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.