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GB/T 34237-2017: Fluorinated olefins for refrigerant use -- General method for the determination of water
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34237-2017 | English | 199 |
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Fluorinated olefins for refrigerant use -- General method for the determination of water
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GB/T 34237-2017
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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
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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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