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GB/T 31401-2015 English PDF

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US$109.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 31401-2015: Fluorinated alkane -- Determination of chloride (Cl￣) -- Turbidimetry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 31401-2015	109	Add to Cart	2 days	Fluorinated alkane -- Determination of chloride (Cl￣) -- Turbidimetry	Valid

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Basic data

Standard ID: GB/T 31401-2015 (GB/T31401-2015)
Description (Translated English): Fluorinated alkane -- Determination of chloride (Cl��) -- Turbidimetry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G17
Classification of International Standard: 71.080.20
Word Count Estimation: 5,541
Date of Issue: 2015-05-15
Date of Implementation: 2015-10-01
Quoted Standard: GB/T 6680-2003; GB/T 6681-2003; GB/T 6682
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 determination of chloride fluorinated alkanes (Cl��) General method - turbidity method. This Standard applies to the determination of chloride fluorinated alkanes. The test methods for testing the sensitivity of chloride (Cl��) 3% volume fraction of 0.000.

GB/T 31401-2015: Fluorinated alkane -- Determination of chloride (Cl￣) -- Turbidimetry

---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.
Fluorinated alkane.Determination of chloride (Cl¯) .Turbidimetry ICS 71.080.20 G17 National Standards of People's Republic of China Fluoroalkane chloride (of Cl-) Determination Turbidity method Fluorinatedalkane-Determinationofchloride (Cl -) - Turbidimetry Issued on. 2015-05-15 2015-10-01 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. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee chemical refrigerants Technical Committee (SAC/TC63/SC9) centralized. This standard was drafted. Zhejiang Chemical Research Institute Co., Ltd., China Petroleum and Chemical Corporation Beijing Research Institute of Chemical. Participated in the drafting of this standard. Ying Peng Chemical Co., Ltd., Changshu 3F Zhonghao New Chemical Materials Co., Ltd., Shandong Dongyue Chemical has Ltd., Shandong Huaan New Materials Co., Ltd., Zhejiang blue sky and green high-tech Co., Ltd., Jiangsu Meilan Chemical Co., Ltd., Jiangxi stone Lei fluorine chemical limited liability company. The main drafters of this standard. Shiwan Jun, Fang Road, Pangyin Juan, Hu Yanzhao wind, Hai, Lee Enterprises true cloud head Tan, Sun Xiaobo. Fluoroalkane chloride (of Cl-) Determination Turbidity method

1 Scope

This standard specifies the determination fluorinated alkanes chloride (Cl-) general method --- turbidity method. This standard applies to the determination of chloride in fluorinated alkanes. This test method detection sensitivity is chloride (Cl-) volume fraction 0.0003%.

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 6680-2003 General rules for sampling liquid chemical products GB/T 6681-2003 General rules for sampling gaseous chemical products Laboratory use specifications and test methods GB/T 6682 Analysis

3 Sampling

3.1 voltage, high voltage and extra sampling fluorinated alkanes according to the provisions of GB/T 6681-2003 was 7.10. Sampling cylinder and Mining Like catheter should vacuum drying, the sample liquid into the sample cylinders shall be the total amount of samples should ensure that need to be inspected. Sampling fluoroalkane low pressure according to the provisions of 3.2 GB/T 6680-2003 of 7.1 was. Appliance plug small mouth bottle sampling, We should ensure that the total amount of samples need to be inspected. 3.3 Sampling cylinders labeled and marked. product name, batch number, date of sampling and sample names, etc. for testing or examination.

4 principle of the method

Under acidic conditions, the fluoroalkane chloride (of Cl-) in methanol saturated with silver nitrate solution produced by the reaction of silver chloride precipitate. Visually Precipitate as silver chloride was not observed by the test.

5 Test methods

Warning. some of the test procedure specified in this standard can lead to dangerous situations, the user should take appropriate safety and health protection measures. Test methods and reagents used in water in the absence of other specified requirements, refer confirmed analytically pure reagents and GB/T 6682 stipulated Three water. 5.1 Reagents 5.1.1 anhydrous methanol. 5.1.2 nitrate. 5.1.3 methanol saturated solution of silver nitrate. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 31401-2015_English be delivered?

Answer: Upon your order, we will start to translate GB/T 31401-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 31401-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 31401-2015_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.