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GB/T 23844-2019 English PDF

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Q: Should I purchase the latest version GB/T 23844-2019?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23844-2019 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$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23844-2019: General method for the determination of sulphate in inorganic chemicals products
Status: Valid

GB/T 23844: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23844-2019	199	Add to Cart	3 days	General method for the determination of sulphate in inorganic chemicals products	Valid
GB/T 23844-2009	319	Add to Cart	3 days	Inorganic chemicals for industrial use -- General method for the determination of sulphate -- Visible turbidimetric method	Obsolete

Similar standards

GB/T 23940 GB/T 23769 GB/T 23834.1 GB/T 23834.2

Basic data

Standard ID: GB/T 23844-2019 (GB/T23844-2019)
Description (Translated English): General method for the determination of sulphate in inorganic chemicals products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G10
Classification of International Standard: 71.060.01
Word Count Estimation: 10,184
Date of Issue: 2019-10-18
Date of Implementation: 2020-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 23844-2019: General method for the determination of sulphate in inorganic chemicals products

---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.
General method for the determination of sulphate in inorganic chemicals products ICS 71.060.01 G10 National Standards of People's Republic of China Replace GB/T 23844-2009 General method for determination of sulfate in inorganic chemical products Published on.2019-10-18 2020-09-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 23844-2009 "General method for the determination of sulfate in inorganic chemical products, visual turbidimetry", and Compared with GB/T 23844-2009, the main technical changes except editorial changes are as follows. --- Revised the standard name, modified from "visual turbidimetric method for the determination of sulfate in inorganic chemical products" to "inorganic chemical production" General method for determination of sulfate in products" (see standard name, standard name for.2009 edition); --- Added "Spectrophotometry" and "Inductively Coupled Plasma Atomic Emission Spectrometry" (see Chapters 5 through 6); --- Increased test conditions for inductively coupled plasma atomic emission spectrometry (see Appendix A). This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Chemical Standardization Technical Committee (SAC/TC63). This standard was drafted. Polyfluoropoly Chemical Co., Ltd., Longyan Lilian Group Co., Ltd., CNOOC Tianjin Chemical Research Design Institute Co., Ltd., SDIC Xinjiang Lop Nur Potassium Salt Co., Ltd., Jiangxi Nuclear Industry Xingzhong New Material Co., Ltd., Zhejiang Tianshi Nano Technology Co., Ltd., Sichuan Shuangqi Testing Technology Co., Ltd., Shenzhen Zhongrun Water Industry Technology Development Co., Ltd., Xiamen Lanshuiling Environmental Protection Technology Co., Ltd., Weifang Menjie Chemical Co., Ltd., Zhejiang Shuizhiyin Testing Co., Ltd., National Inorganic Salt Products Quality Supervision and Inspection center. The main drafters of this standard. Shi Xiuhua, Ma Yanping, Ding Ling, Li Shoujiang, Ye Weihui, Tian Wei, Jiang Rui, Li Runsheng, Cai Meina, Xue Xujin, Chen Xiaoli, Guo Haolong, Wang Yongqin, Shao Ruilin, Liu Quanjun, Yu Minghua, Gong Chuangzhou, An Xiaoying. The previous versions of the standards replaced by this standard are. ---GB/T 23844-2009. General method for determination of sulfate in inorganic chemical products Warning - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations. In this test method Some of the reagents used are toxic or corrosive. Care should be taken during handling. If splashed on the skin, rinse immediately with water. In severe cases, immediately Treatment; high pressure gas cylinders used in this test method shall be operated in accordance with the safety regulations of high pressure cylinders.

1 Scope

This standard specifies the principles, reagents or materials, equipment, test procedures and tests for the general method for the determination of sulfate in inorganic chemical products. Data processing. This standard applies to the determination of sulfate in inorganic chemical products. Note. The range of visual turbidimetry is 0.4μg/mL~4.0μg/mL, and the spectrophotometric range is 1.0μg/mL~10.0μg/mL. Inductively coupled plasma The range of the measurement by bulk emission spectroscopy was not less than 0.25 μg/mL.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682-2008 Analytical laboratory water specifications and test methods HG/T 3696.2 Preparation of standard solutions, preparations and products for chemical analysis of chemical products - Part 2 Liquid preparation Preparation of standard solutions, preparations and products for chemical analysis - Part 3. Preparations and preparations Preparation

3 General regulations

The reagents and water used in this standard, unless otherwise specified, should be analytically pure or analytically pure and in accordance with GB/T 6682- The provisions of the third-grade water in.2008. Standard solutions, preparations and products for the determination of impurities required in the test, when no other requirements are specified, Prepared by HG/T 3696.2 and HG/T 3696.3.

4 visual turbidimetry

4.1 Principle In the hydrochloric acid medium, strontium ions and sulfate ions form insoluble barium sulfate, and when the sulfate ion content is low, within a certain period of time Barium sulphate is in suspension, the solution is turbid, and the turbidity formed by the sulphate is determined by visual turbidity and the standard comparison solution. 4.2 Reagents or materials 4.2.1 Hydrochloric acid solution. 1 2. 4.2.2 Potassium Sulfate Ethanol Solution. 0.2 g/L, 0.02 g of potassium sulfate was dissolved in 100 mL of 30% ethanol solution. 4.2.3 Barium chloride solution. 250g/L. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23844-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23844-2019_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 23844-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23844-2019_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 23844-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23844-2019 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.