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GB/T 23941-2025 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23941-2025: Analytical methods of calcium chloride for industrial use
Status: Valid

GB/T 23941: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23941-2025	209	Add to Cart	3 days	Analytical methods of calcium chloride for industrial use	Valid
GB/T 23941-2009	189	Add to Cart	3 days	Industrial chloride analysis	Valid

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GB/T 23948 GB/T 23940 GB/T 23948 GB/T 23950 GB/T 23944

Basic data

Standard ID: GB/T 23941-2025 (GB/T23941-2025)
Description (Translated English): Analytical methods of calcium chloride for industrial use
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G10
Classification of International Standard: 71.060.01
Word Count Estimation: 10,147
Date of Issue: 2025-06-30
Date of Implementation: 2026-01-01
Older Standard (superseded by this standard): GB/T 23941-2009
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 23941-2025: Analytical methods of calcium chloride for industrial use

---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/GBT23941-2025
ICS 71.060.01 CCSG10 National Standard of the People's Republic of China Replaces GB/T 23941-2009 Analysis method of industrial calcium chloride Released on June 30, 2025 Implementation on January 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 23941-2009 "Analysis method for industrial calcium chloride". Compared with GB/T 23941-2009, except for the structural adjustment Besides the editorial changes, the main technical changes are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2009 edition); b) The test method for magnesium and alkali metal salts (calculated as NaCl) has been deleted (see Chapter 7 of the.2009 edition); c) Added test methods for total alkali metal chloride content, iron content, total magnesium content and pH (see 4.5, 4.8, 4.9 and 4.10); d) Added the visual turbidimetric method for determining sulfate (see 4.7.2). 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 Chemical Standardization (SAC/TC63). This document was drafted by. Qingdao Alkali Industry Development Co., Ltd., Shandong Haihua Co., Ltd., CNOOC Tianjin Chemical Research and Design Institute Co., Ltd., Changshu Huayu Environmental Technology Co., Ltd., Da Qaidam Geely Chemical Co., Ltd., and Hubei Xingfa Chemical Group Co., Ltd. The main drafters of this document are. Zhang Yanyan, Chang Gang, Wang Ying, Wang Guoping, Dong Ligang, Yu Yanling, Gong Mingming, Gao Yunrong, Zhang Kai, Wang Zhiwei, Chen Shuang and Wang Fengkang. The previous versions of this document and the documents it replaces are as follows. ---First published in.2009 as GB/T 23941-2009; ---This is the first revision. Analysis method of industrial calcium chloride

1 Scope

This document gives the general provisions and appearance inspection of the industrial calcium chloride analysis method, and describes the calcium chloride in the industrial calcium chloride analysis method. Methods for determination of content, alkalinity, total alkali chloride, water-insoluble matter, sulfate, iron, total magnesium, and pH. This document applies to industrial calcium chloride products in solid and solution form.

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 3049-2006 General method for determination of iron content in industrial chemical products - 1,10-phenanthroline spectrophotometric method GB/T 6682-2008 Specifications and test methods for water used in analytical laboratories GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 23769 General method for determination of pH value in aqueous solutions of inorganic chemical products GB/T 23844-2019 General method for determination of sulfate in inorganic chemical products HG/T 3696.1 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products Part 1.Standard titration solutions Preparation of liquid HG/T 3696.3 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products Part 3.Preparations and products Preparation

3 Terms and Definitions

There are no terms or definitions that require definition in this document.

4 Test methods

Warning. Some of the reagents used in this test method are toxic or corrosive. Operators should be careful. If they splash on the skin, they should be removed immediately. Rinse with water and seek medical treatment immediately if serious. When using flammable materials, do not use open flames to heat them. 4.1 General Provisions The reagents and water used in this document, unless otherwise specified, refer to analytical reagents and those specified in GB/T 6682-2008. The standard titration solutions, preparations and products used in the test shall be in accordance with HG/T 3696.1 and Prepared in accordance with the provisions of HG/T 3696.3. 4.2 Appearance Inspection Under natural light, the appearance of calcium chloride solid is determined by visual inspection on a white surface dish or white porcelain plate. The appearance of the product was determined visually on a white porcelain plate. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23941-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23941-2025_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 23941-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23941-2025_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 23941-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23941-2025 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.