GB/T 18443.8-2010 PDF EnglishUS$185.00 · In stock · Download in 9 seconds
GB/T 18443.8-2010: Testing method of performance for vacuum insulation cryogenic equipment - Part 8: Volume measurement Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 18443.8-2010: Testing method of performance for vacuum insulation cryogenic equipment - Part 8: Volume measurement---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/GBT18443.8-2010 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 23.020 J 74 Replacing GB/T 18443.1-2001 Testing method of performance for vacuum insulation cryogenic equipment - Part 8.Volume measurement Issued on. SEPTEMBER 26, 2010 Implemented on. FEBRUARY 01, 2011 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 6 4 Test principle and method... 6 5 Test devices, equipment and instruments... 7 6 Test conditions and test preparation... 7 7 Requirements for test procedures... 8 8 Data processing... 8 9 Test record and test report... 13 Appendix A (Informative) Volume test record (measurement by geometric dimensions) ... 14 Appendix B (Informative) Volume test report (measurement by geometric dimensions) ... 15ForewordGB/T 18443 Testing method of performance for vacuum insulation cryogenic equipment is divided into 8 parts. -- Part 1.Basic requirements; -- Part 2.Vacuum degree measurement; -- Part 3.Leak rate measurement; -- Part 4.Leak-outgassing rate measurement; -- Part 5.Static evaporation rate measurement; -- Part 6.Heat-leak rate measurement; -- Part 7.Holding time measurement; -- Part 8.Volume measurement. This Part is Part 8 of GB/T 18443. This Part replaces GB/T 18443.1-2001, Testing method of cryo-insulation pressure vessels - Volume measurement. Compared with GB/T 18443.1-2001, the main changes in this Part are as follows. -- Expand the scope of application from cryo-insulation pressure vessels to vacuum insulated cryogenic pressure vessels, vacuum insulated cryogenic welded gas cylinders, vacuum insulated pipes and their fittings, and other vacuum insulated cryogenic equipment. -- Add terms and definitions to Chapter 3; adjust test conditions and test preparation in Chapter 6; revise, supplement and adjust other chapters; -- Revise the reference standard for heads to JB/T 4746 Formed Heads for Steel Pressure Vessels; -- Add the calculation of volume of interspace component to the calculation of volume of the interspace; -- Add a formula for the calculation of volume of the standard elliptical head. Appendix A and Appendix B of this Part are informative appendices. This Part is proposed by and shall be under the jurisdiction of National Technical Committee 262 on Boilers and Pressure Vessels of Standardization Administration of China (SAC/TC 262). Drafting organizations of this Part. Shanghai Special Equipment Supervision and Inspection Technology Research Institute, Shanghai Gas Industry Association, Ningbo Mingxin Chemical Machinery Co., Ltd., Shanghai Jiaotong University, Shandong Institute of Commerce and Technology, Shanghai Huayi Group Equipment Engineering Co., Ltd., China Special Equipment Inspection and Research Institute. Drafting staffs of this Part. Wen Qing, Zhou Weiming, Wang Rongshun, Wei Wei, Shu Wenhua, Luo Xiaoming, Shou Bishan, Xue Ji’ai, Xue Xiaolong, Shi Fengping, Wei Yongbiao, Gu Fuming, Wang Weiguo. The previous version of the standard which is replaced by this Part is. -- GB/T 18443.1-2001. Testing method of performance for vacuum insulation cryogenic equipment - Part 8.Volume measurement1 ScopeThis part of GB/T 18443 specifies the test principle and method, test devices, equipment and instruments, test conditions and test preparation, test procedures, data processing, test record and test report, and other requirements for the volume measurement of vacuum insulated cryogenic equipment. This Part applies to the volume measurement of vacuum insulated cryogenic pressure vessels, vacuum insulated cryogenic welded gas cylinders, vacuum insulated pipes and their fittings, other than the storage and transportation of liquid hydrogen medium.2 Normative referencesThe terms in the following documents become the terms of this Part through the reference of this Part of GB/T 18443.For dated references, all subsequent amendments (not including errata content) or revisions do not apply to this Part. However, parties to agreements that are based on this Part are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this Part. GB/T 18443.1-2010 Testing method of performance for vacuum insulation cryogenic equipment - Part 1.Basic requirements GB/T 18443.2, Testing method of performance for vacuum insulation cryogenic equipment - Part 2.Vacuum degree measurement GB/T 18443.3, Testing method of performance for vacuum insulation cryogenic equipment - Part 3.Leak rate measurement3 Terms and definitionsTerms and definitions determined by GB/T 18443.1 ~ GB/T 18443.7, as well as the following ones, are applicable to Part. 3.1 Inner containment vessel A liner that stores cryogenic liquids and can withstand working pressure. 3.2 Outer shell A closed container that forms and protects a vacuum insulated space. 3.3 Geometric volume The internal volume of the inner containment vessel - deducting the volume of the internal parts - determined according to the design geometric dimensions, in cubic meters (m3).4 Test principle and method4.1 Measurement by geometric dimensions Use the length measuring instrument - by measuring the length parameters of the regular geometric configuration of each measured piece - to calculate the volume that shall be included in the overall volume; 4.2 Measurement by weighing Fill the measured piece with liquid of known density, and calculate the volume of the measured piece by weighing the mass of the liquid. It is used for the measurement of container volume or component volume, etc.5 Test devices, equipment and instrumentsTest devices, equipment and instruments shall comply with the provisions of 4.2 in GB/T 18443.1-2010, and shall meet the following requirements.6 Test conditions and test preparationTest conditions and test preparation shall comply with the provisions of GB/T 18443.1.7 Requirements for test procedures7.1 Measurement by geometric dimensions 7.2 Measurement by weighing 7.2.1 Place the measured piece on the selected weighing instrument, and weigh out the mass m0 of the container or component when it is not filled with liquid. 7.2.2 When the measured piece is a component, fill the component with liquid, and weigh the mass m at this time. 7.3 Measurement by a flowmeter 7.3.1 Connect the measured piece to the flowmeter; record the initial value Q0 of the flowmeter; inject liquid.8 Data processing8.1 Measurement by geometric dimensions 8.1.1 The geometric volume of the cylinder shall be calculated according to Formula (1). 8.1.3 The geometric volume of the sphere shall be calculated according to Formula (2). 8.1.6 The volume of the interspace component shall be calculated according to Formula (5). 8.3 Measurement by a flowmeter When a flowmeter is used for measurement, the effective volume of the measured piece shall be calculated according to Formula (14). 8.4 Measurement of effective volume of the inner containment vessel The measurement of effective volume of the inner containment vessel shall meet the following requirements.9 Test record and test report9.1 Refer to Appendix A for the test record format. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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