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GB/T 34237-2017 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34237-2017: Fluorinated olefins for refrigerant use -- General method for the determination of water
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34237-2017	199	Add to Cart	3 days	Fluorinated olefins for refrigerant use -- General method for the determination of water	Valid

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Basic data

Standard ID: GB/T 34237-2017 (GB/T34237-2017)
Description (Translated English): Fluorinated olefins for refrigerant use -- General method for the determination of water
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G17
Classification of International Standard: 71.080.20
Word Count Estimation: 10,145
Date of Issue: 2017-09-07
Date of Implementation: 2018-04-01
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

GB/T 34237-2017: Fluorinated olefins for refrigerant use -- General method for the determination of water

---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 olefins for refrigerant use - General method for the determination of water ICS 71.080.20 G17 National Standards of People's Republic of China Common method for the determination of fluoroolefins moisture in refrigerants 2017-09-07 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Petroleum and Chemical Industry Federation. This standard by the National Standardization Technical Committee Refrigeration Technical Committee (SAC/TC63/SC9) centralized. This standard was drafted unit. Zhejiang Chemical Industry Research Institute Co., Ltd., China Petroleum & Chemical Corporation Beijing Chemical Industry Research Institute, Zhejiang Fluorochemical Co., Ltd., Changshu three love Fu Hao Chemical New Materials Co., Ltd. Participated in the drafting of this standard. Honeywell (China) Co., Ltd., Shandong Dongyue Chemical Co., Ltd., Zhejiang Yonghe Refrigerants Co., Ltd. Limited, Shandong Huaan New Materials Co., Ltd., Linhai Limin Chemical Co., Ltd. The main drafters of this standard. Shiwan Jun, Fang Road, Li Qi true, Liu Hongxiu, Wang Chen Qian, Pang Yinjuan, Wang Xiangrui, Wang La Shi, Feng Yujie, Huang Yu, Qian Xiaofeng. Common method for the determination of fluoroolefins moisture in refrigerants

1 Scope

This standard specifies the use of Karl Fischer coulomb power and electrolysis method for the determination of trace moisture in general test methods. This standard applies to the determination of trace amounts of moisture in fluoroolefins for refrigerants, of which electrolytic method is not suitable for low-pressure refrigerant fluorinated olefins.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. General rules for sampling liquid chemical products General rules for sampling gas chemical products

3 samples

3.1 equipment 3.1.1 Sampling cylinders of fluoroolefins for medium and high pressure refrigerants Double valve stainless steel cylinder, the volume of not less than 150mL, the working pressure should be greater than the pressure of the same product. 3.1.2 low pressure refrigerant fluorinated olefin sample bottles 1000mL or 500mL ground glass. 3.2 sampling catheter 3.2.1 For medium and high pressure refrigerants with fluoroolefins Copper fittings, brass or other suitable material joints and pipes. 3.2.2 low-pressure refrigerant with fluoroolefin Glass or other suitable material pipe. 3.3 sampling requirements 3.3.1 medium and high pressure refrigerant samples of fluorinated olefins by GB/T 6681-2003 in the provisions of 7.10. Sampling cylinder and mining The sample tube should be vacuum dried, the sample should be liquid sample into the cylinder, the total sample size should ensure that testing needs. 3.3.2 Low-pressure refrigerant samples of fluorinated olefins by 7.1 GB/T 6680-2003 regulations. The sampling bottle and sampling catheter should be For drying, the total amount of sampling should ensure that testing needs. 3.3.3 affix a label and indicate the product name, lot number, sampling date and sample name, for inspection purposes.

4 test methods

WARNING --- Some test procedures specified in the test method may lead to dangerous situations. The operator should take appropriate safety and protection Measures. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 34237-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 34237-2017_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 34237-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 34237-2017_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.