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GB/T 41312.1-2022: Test method for measurement of the permeability of chemical equipment - Part 1: Graphite and lining equipment
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| GB/T 41312.1-2022 | English | 179 |
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Test method for measurement of the permeability of chemical equipment - Part 1: Graphite and lining equipment
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GB/T 41312.1-2022
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Basic data | Standard ID | GB/T 41312.1-2022 (GB/T41312.1-2022) | | Description (Translated English) | Test method for measurement of the permeability of chemical equipment - Part 1: Graphite and lining equipment | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G94 | | Word Count Estimation | 9,95 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41312.1-2022: Test method for measurement of the permeability of chemical equipment - Part 1: Graphite and lining equipment
---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.
Test method for measurement of the permeability of chemical equipment - Part 1.Graphite and lining equipment
ICS 71.120; 83.140
CCSG94
National Standards of People's Republic of China
Chemical equipment permeability detection method
Part 1.Graphite and its lining equipment
Published on 2022-03-09
2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is the first part of GB/T 41312 "Testing method for permeability of chemical equipment". GB/T 41312 has issued the following
part.
--- Part 1.Graphite and its lining equipment.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Standardization Technical Committee of Nonmetallic Chemical Equipment (SAC/TC162).
This document is drafted by. Wenzhou Zhaofulong Co., Ltd., Nantong Planetary Graphite Co., Ltd., Ningbo Special Equipment Inspection and Research Institute,
Wenzhou Institute of Quality and Technical Testing, Zhejiang Ruitang Plastic Technology Co., Ltd., Shandong Institute of Standardization, Guangdong Baolixing
Technology Co., Ltd., Jiangte Technology Co., Ltd., Xi'an Plastic Dragon Welding Equipment Co., Ltd.
The main drafters of this document. Ying Renai, Chen Guolong, Liu Yili, Lu Sheng, Wen Yuan, Jiang Kuishu, Li Baoxing, Tan Donghua, Zhao Feng, Chen Zhao.
Introduction
GB/T 41312 "Test method for permeability of chemical equipment" aims to accurately measure the permeability performance of chemical equipment. It is planned to be divided into three parts.
composition.
--- Part 1.Graphite and its lining equipment;
--- Part 2.Equipment for plastic fiber composite materials;
--- Part 3.Plastics and their lining equipment.
Penetration performance is very important to chemical equipment, it is directly related to the quality, safety and service life of chemical equipment.
Due to its excellent anti-corrosion performance and heat-resistant performance, chemical equipment is used to contain extremely or highly hazardous toxicity.
If the medium is easy to penetrate due to its manufacturing process and other problems, it will cause the leakage of toxic medium, endanger human safety, and cause environmental damage.
environmental pollution and other vicious events. After the release and implementation of this document, it will play a very good guiding role in the permeability detection of chemical equipment, and will play a role in improving the chemical industry.
The quality level of equipment and the specification of the manufacturing process of equipment in this industry are of great significance.
Chemical equipment permeability detection method
Part 1.Graphite and its lining equipment
1 Scope
This document describes the principle of the permeability detection method for chemical impermeable graphite equipment, and specifies the test equipment and materials, samples,
Test procedure and test report.
This document applies to the permeability testing of impermeable graphite equipment, but not to impermeable graphite equipment towers and graphite equipment lined with graphite plates.
Prepared penetration testing.
2 Normative references
There are no normative references in this document.
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document.
4 Principles
After the impermeable graphite container or the closed space inside the sample is pumped to a certain degree of vacuum, helium gas of a certain purity and pressure is injected, and the pressure is maintained to a certain degree.
After time, the leaked helium gas was detected by a helium mass spectrometer leak detector on the outside of the container and the sample.
5 Test equipment and materials
5.1 Detection system
5.1.1 The permeability detection system, see Figure 1.
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