GB/T 41733-2022 English PDF

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GB/T 41733-2022: Standard test method for determination of carbon residue of organic heat transfer fluids - Nitrogen charge method
Status: Valid

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GB/T 41733-2022	189	Add to Cart	3 days	Standard test method for determination of carbon residue of organic heat transfer fluids - Nitrogen charge method	Valid

Similar standards

GB/T 24747   GB/T 22395   GB/T 16508.8   GB/T 45542   GB/T 10184   

Basic data

Standard ID: GB/T 41733-2022 (GB/T41733-2022)
Description (Translated English): Standard test method for determination of carbon residue of organic heat transfer fluids - Nitrogen charge method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J98
Classification of International Standard: 27.060.30
Word Count Estimation: 10,149
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41733-2022: Standard test method for determination of carbon residue of organic heat transfer fluids - Nitrogen charge method

---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.
Standard test method for determination of carbon residue of organic heat transfer fluids -- Nitrogen charge method ICS 27.060.30 CCSJ98 National Standards of People's Republic of China Organic heat carrier carbon residue determination method nitrogen filling method Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method Outline 1 5 Carrier gas 1 6 Instrument 2 7 Sample and sample tube weighing and handling 4 8 Determination step 5 9 Calculate 5 10 Notes 5 11 Precision 6 12 Report 6

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. 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 and managed by the National Standardization Technical Committee for Boilers and Pressure Vessels (SAC/TC262). This document is drafted by. China Boiler and Boiler Water Treatment Association, Anhui Special Equipment Inspection Institute, Ningbo Special Equipment Inspection and Research Institute, Jiangsu Provincial Institute of Special Equipment Safety Supervision and Inspection, Guangdong Provincial Institute of Special Equipment Testing and Inspection Zhuhai Testing Institute, Chongqing Special Equipment Inspection and Research Institute Testing Research Institute, Hunan Heli Electronic Technology Co., Ltd., Hangzhou Special Equipment Testing Research Institute, Jiangsu Zhongneng Chemical Technology Co., Ltd. The main drafters of this document. Wang Jiaoling, Zhao Jingbo, Lin Jihua, Zhou Ying, Hu Yuexin, Ma Minglu, Zhang Wenpin, Zhu Ziqiang, Xu Hui, Wu Chaoyang. Organic heat carrier carbon residue determination method nitrogen filling method

1 Scope

This document specifies the method for the determination of organic heat carrier carbon residues in the nitrogen-filled state. This document is applicable to the determination of carbon residues without organic heat carrier and organic heat carrier in use, and the mass fraction of carbon residue ranges from 0.01%~ 10.0%. This document does not apply to silicone oils.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 8979 Pure nitrogen, high-purity nitrogen and ultra-pure nitrogen GB/T 24747 Safety technical conditions for organic heat carrier Properties of HG/T 3115 Borosilicate Glass 3.3

3 Terms and Definitions

The terms and definitions defined in GB/T 24747 and the following apply to this document. 3.1 Generic term for organic substances used as heat transfer media. 3.2 Organic heat carrier products that have not been injected into the heat transfer system. 3.3 Organic heat carriers that have been injected into heat transfer systems. 3.4 carbonresidue The residue formed after the sample is heated under certain conditions, evaporated and pyrolyzed.

4 Method overview

The sample to be tested is added to the sample tube, and in the state of nitrogen filling in the coking furnace, the temperature is programmed to heat up to 500 ℃ according to the specified temperature. The volatile substances are taken away by nitrogen, and the residual carbon value is calculated by the mass fraction of the residue in the sample to be tested.

5 carrier gas

The carrier gas used in this experiment is nitrogen, the purity is not less than 99.99%, and the quality should meet the requirements of GB/T 8979.Rear lift with two-stage regulator Supply nitrogen with a pressure of 140kPa~200kPa. ......

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