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GB/T 21879-2015 English PDF

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Q: Should I purchase the latest version GB/T 21879-2015?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21879-2015 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$129.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21879-2015: Water-soluble dyes -- Determination of solubility -- Test of filter papers
Status: Valid

GB/T 21879: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21879-2015	129	Add to Cart	3 days	Water-soluble dyes -- Determination of solubility -- Test of filter papers	Valid
GB/T 21879-2008	199	Add to Cart	2 days	Water-soluble dyes -- Determination of solubility -- Drop test of filter papers	Obsolete

Similar standards

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Basic data

Standard ID: GB/T 21879-2015 (GB/T21879-2015)
Description (Translated English): Water-soluble dyes -- Determination of solubility -- Test of filter papers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 6,659
Date of Issue: 2015-05-15
Date of Implementation: 2015-12-01
Older Standard (superseded by this standard): GB/T 21879-2008
Quoted Standard: GB/T 1914-2007; GB/T 2374-2007; GB/T 6682-2008
Regulation (derived from): National Standard Announcement 2015 No. 15
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies the point of the filter paper method for determining the solubility of water-soluble dyes. This Standard applies to the determination of the solubility of water-soluble dyes.

GB/T 21879-2015: Water-soluble dyes -- Determination of solubility -- Test of filter papers

---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.
Water-soluble dyes. Determination of solubility. Test of filter papers ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Replacing GB/T 21879-2008 Water-soluble dye solubility measurement point filter paper method Issued on. 2015-05-15 2015-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 21879-2008 "water-soluble dye solubility measurement point filter paper method" and GB/T 21879-2008 Compared to, in addition to editorial changes outside the main technical changes are as follows. --- Modify the scope of representation (see Chapter 1, Chapter 1 of the 2008 edition); --- Increase the solubility of the sub-file principle (see 6.1); --- Modify the filter paper drip formulation and evaluation (see 6.3, 6.4, 6.2, 6.3, 2008 edition). The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized. This standard was drafted. Zhe Jiang Keyong Chemical Co., dye State Quality Supervision and Inspection Center, Shenyang Chemical Research Institute Co., Ltd. The main drafters of this standard. Wangren Liang, Dong Zhongsheng, Liuni Ping, Ji Qin Lan, Wang Xiaohong. This standard replaces the standards previously issued as follows. --- GB/T 21879-2008. Water-soluble dye solubility measurement point filter paper method

1 Scope

This standard specifies the point filter paper method for determining the solubility of water-soluble dyes. This standard applies to the determination of the solubility of water-soluble dyes.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 1914-2007 Chemical analysis filter paper General conditions GB/T 2374-2007 Determination of dyes provisions Laboratory use specifications and test methods GB/T 6682-2008 Analysis

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Solubility solubility At a certain temperature and pressure, the material in a given amount of solvent to dissolve the maximum amount referred to solubility. Principle 4 Under certain volume and a certain temperature conditions, water-soluble dye under normal pressure is dissolved in water quantity, that is, the solubility of the dye to in g/L.

5 Equipment and Materials

Equipment and materials shall comply with the relevant provisions of GB/T 2374-2007 in Chapter 4; test water should comply with GB/T 6682-2008 The three water requirements. a) high glass beaker. Capacity 150mL; b) constant temperature water bath; c) mercury thermometers. 0 ℃ ~ 100 ℃; d) straight scale straw. Capacity 1mL; e) filter paper. φ110mm speed qualitative filter paper, shall comply with the relevant provisions of GB/T 1914-2007 in; f) temperature-controlled magnetic stirrer. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21879-2015_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21879-2015_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 21879-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21879-2015_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 21879-2015?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21879-2015 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.