GB/T 37994-2019 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 37994-2019 | English | 199 |
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General rules for sampling blend
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GB/T 37994-2019: General rules for sampling blend---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT37994-2019
General rules for sampling blend
ICS 71.080.20
G15
National Standards of People's Republic of China
Mixed refrigerant sampling rule
Published on.2019-08-30
2020-07-01 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 was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Chemical Standardization Technical Committee Refrigerant Subcommittee (SAC/TC63/SC9).
This standard was drafted. Zhejiang Chemical Industry Research Institute Co., Ltd., Sinochem Blue Sky Fluorine Materials Co., Ltd., Shandong Dongyue Chemical Co., Ltd.
China Petroleum & Chemical Corporation Beijing Chemical Industry Research Institute, Shandong Huaan New Materials Co., Ltd., Changshu San Aifu Zhongyi Chemical New Materials
Limited company, Zhejiang Zhangzhou Lianzhou Refrigerant Co., Ltd.
The main drafters of this standard. Shi Yijun, Li Qizhen, Yan Chunli, Huang Wei, Qian Xiaofeng, Duan Qi, Wang Xin, Ke Xuemei, Wang Lashi, Hui Yue, Yu Hong.
Mixed refrigerant sampling rule
1 Scope
This standard specifies the sampling principle, sampling equipment, sampling preparation, sampling steps, and sampling safety of mixed refrigerant sampling.
This standard applies to the sampling of mixed refrigerants.
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 3723 General rules for sampling safety of industrial chemical products
GB/T 6680-2003 General rules for sampling of liquid chemical products
GB/T 6681-2003 General rules for sampling of gas chemical products
GB/T 7778-2017 refrigerant numbering method and safety classification
GB/T 14193 liquefied gas cylinder filling regulations
TSGR0006 gas cylinder safety technical supervision procedures
3 Terms and definitions
The following terms and definitions defined in GB/T 6680-2013 and GB/T 7778-2017 apply to this document. In order to facilitate
Some of the terms and definitions in GB/T 6680-2013 and GB/T 7778-2017 are repeated below.
3.1
Refrigerant
A fluid used for heat transfer in a refrigeration system that absorbs heat at low and low pressures of the fluid and releases heat at high temperatures and pressures of the fluid.
Amount, usually involving the phase change of a fluid.
[GB/T 7778-2017, definition 3.1.35]
3.2
Mixed refrigerant blend
A mixed refrigerant composed of two or more refrigerants.
[GB/T 7778-2017, definition 3.1.6]
3.3
Azeotrope mixed refrigerant azeotrope
Consisting of two or more refrigerants, the equilibrium vapor phase and liquid phase composition are the same at a given pressure, but under other conditions
May be different mixed refrigerants.
[GB/T 7778-2017, definition 3.1.5]
GB/T 37994-2019
General rules for sampling blend
ICS 71.080.20
G15
National Standards of People's Republic of China
Mixed refrigerant sampling rule
Published on.2019-08-30
2020-07-01 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 was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Chemical Standardization Technical Committee Refrigerant Subcommittee (SAC/TC63/SC9).
This standard was drafted. Zhejiang Chemical Industry Research Institute Co., Ltd., Sinochem Blue Sky Fluorine Materials Co., Ltd., Shandong Dongyue Chemical Co., Ltd.
China Petroleum & Chemical Corporation Beijing Chemical Industry Research Institute, Shandong Huaan New Materials Co., Ltd., Changshu San Aifu Zhongyi Chemical New Materials
Limited company, Zhejiang Zhangzhou Lianzhou Refrigerant Co., Ltd.
The main drafters of this standard. Shi Yijun, Li Qizhen, Yan Chunli, Huang Wei, Qian Xiaofeng, Duan Qi, Wang Xin, Ke Xuemei, Wang Lashi, Hui Yue, Yu Hong.
Mixed refrigerant sampling rule
1 Scope
This standard specifies the sampling principle, sampling equipment, sampling preparation, sampling steps, and sampling safety of mixed refrigerant sampling.
This standard applies to the sampling of mixed refrigerants.
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 3723 General rules for sampling safety of industrial chemical products
GB/T 6680-2003 General rules for sampling of liquid chemical products
GB/T 6681-2003 General rules for sampling of gas chemical products
GB/T 7778-2017 refrigerant numbering method and safety classification
GB/T 14193 liquefied gas cylinder filling regulations
TSGR0006 gas cylinder safety technical supervision procedures
3 Terms and definitions
The following terms and definitions defined in GB/T 6680-2013 and GB/T 7778-2017 apply to this document. In order to facilitate
Some of the terms and definitions in GB/T 6680-2013 and GB/T 7778-2017 are repeated below.
3.1
Refrigerant
A fluid used for heat transfer in a refrigeration system that absorbs heat at low and low pressures of the fluid and releases heat at high temperatures and pressures of the fluid.
Amount, usually involving the phase change of a fluid.
[GB/T 7778-2017, definition 3.1.35]
3.2
Mixed refrigerant blend
A mixed refrigerant composed of two or more refrigerants.
[GB/T 7778-2017, definition 3.1.6]
3.3
Azeotrope mixed refrigerant azeotrope
Consisting of two or more refrigerants, the equilibrium vapor phase and liquid phase composition are the same at a given pressure, but under other conditions
May be different mixed refrigerants.
[GB/T 7778-2017, definition 3.1.5]
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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