2025-5-16 18.97.9.170
Code of China Chinese Classification Professional Classification ICS Classification Latest News Value-added Services

Position: Chinese Standard in English/GB/T 9251-2022
GB/T 9251-2022   Methods for hydrostatic test of gas cylinders (English Version)
Standard No.: GB/T 9251-2022 Status:valid remind me the status change

Email:

Language:English File Format:PDF
Word Count: 8500 words Price(USD):255.0 remind me the price change

Email:

Implemented on:2022-10-1 Delivery: via email in 1 business day
,,
Standard No.: GB/T 9251-2022
English Name: Methods for hydrostatic test of gas cylinders
Chinese Name: 气瓶水压试验方法
Chinese Classification: J74    Pressure vessel
Professional Classification: GB    National Standard
ICS Classification: 23.020.30 23.020.30    Gas pressure vessels, gas cylinders 23.020.30
Issued by: SAMR; SAC
Issued on: 2022-03-09
Implemented on: 2022-10-1
Status: valid
Superseding:GB/T 9251-2011 Methods for hydrostatic test of gas cylinders
Language: English
File Format: PDF
Word Count: 8500 words
Price(USD): 255.0
Delivery: via email in 1 business day
Methods for hydrostatic test of gas cylinders English 1 Scope This document specifies the methods for hydrostatic test of gas cylinders and the basic requirements for test devices. This document is applicable to the hydrostatic test of gas cylinders with a nominal working pressure not greater than 70MPa (gauge pressure, the same below). This document is not applicable to gas cylinders already filled with solid packing. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 13005 Terminology of gas cylinders GB/T 35015 Calibration method for calibrated cylinder used in water jacket hydrostatic test JJG 539 Verification regulation of digital indicating weighing instrument JJG 1036 Verification regulation for electronic balance 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 13005 and the following apply. 3.1 testing cylinder gas cylinder to be tested or under test 3.2 pressure proof test process of testing and verifying the safe bearing capacity of a testing cylinder after it is pressurized to the hydrostatic test pressure and kept with it for a specified period of time 3.3 water jacket method test method for determining the values of total volumetric expansion, elastic volumetric expansion and permanent volumetric expansion of a testing cylinder by placing the cylinder in a special water jacket to pressurize it to the hydrostatic test pressure and hold for a specified period of time, and then measuring the quantity of water overflowed from the jacket and the quantity of remaining overflow after pressure relief 3.4 direct expansion method test method for determining the values of total volumetric expansion, elastic volumetric expansion and permanent volumetric expansion of a testing cylinder by placing the cylinder in a special water jacket to pressurize it to the hydrostatic test pressure and hold for a specified period of time, and then reading the indications of the water quantity measuring instrument for the quantity of pressed water after pressure application and that of remaining water after pressure relief 3.5 special water jacket special device used to determine the volumetric expansion of a testing cylinder generated during the water jacket hydrostatic test 3.6 calibrated cylinder cylinder-type device which has the corresponding relationship between the calibration pressures and its expansion values (characteristic of repeatability and linearity already determined) and will suffer no permanent deformation any more under calibration pressure, used to calibrate the accuracy of the hydrostatic test devices for gas cylinders 3.7 calibrated gauge pressure measuring meter, used to calibrate the pressure of the test system, whose accuracy level shall not be less than those of any other pressure measuring instrument 3.8 reference zero point zero reading on water quantity measuring instrument, with its error to be ±0.1% of the total volumetric expansion or ±0.1mL, whichever is larger 4 Principle In the hydrostatic test on a gas cylinder, the testing cylinder has its inner pressure gradually increased at the specified pressurization rate to the hydrostatic test pressure and maintained for a specified period of time. By different test methods, test and verify the safe bearing capacity of the testing cylinder, and determine the total volumetric expansion, elastic volumetric expansion under the hydrostatic test pressure (if required) and the permanent volumetric expansion after pressure relief of the testing cylinder.   5 Test conditions 5.1 The test water shall be clean fresh water. If the testing cylinder is made of steel containing chrome alloy, the chloride ion content in the test water shall not be larger than 25mg/L. In the test on a testing cylinder filled with oxygen or other strong oxidizing medium, the test water injected or pressed into cylinder shall not be contaminated by grease.
Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Test conditions 6 Equipment and instruments 7 Pressure proof test 8 Water jacket method 9 Direct expansion method 10 Rules for rounding of numerical values 11 Precautions for test Annex A (Nominative) Calibration of water jacket test devices Annex B (Informative) Average coefficient of compressibility of water
Referred in GB/T 9251-2022:
*GB/T 13005-2011 Terminology of gas cylinders
*GB/T 35015-2018 Calibration method for calibrated cylinder used in water jacket hydrostatic test
*JJG 539-2016 Verification Regulation for Digital Indicating Weighing Instruments
*JJG 1036-2022
*GB 3565-2005 Safety requirements for bicycles
*TSG 21-2016/XG1-2020 Supervision Regulation on Safety Technology for Stationary Pressure Vessel,includes Amendment 1
*GB 14748-2006 Safety Requirements for Wheeled Child Conveyances
*GB 2763-2021 National Food Safety Standard-Maximum Residue Limits for Pesticides in Food
*GB/T 22849-2014 Knitted T-shirt
*GB 4943.1-2011 Information technology equipment -Safety - Part 1: General requirements
*GB/T 95-2002 Plain washers - Product grade C
*GB/T 35590-2017 Information technology―General specification for portable digital equipments used power bank
*GB/T 2662-2008 Cotton wadded clothes
*GB/T 2662-2017 Clothes with fillings
*GB/T 14048.5-2017 Low-voltage switchgear and controlgear-Part 5-1:Control circuit devices and switching element-Electromechanical control circuit devices
*GB/T 18455-2022 Packaging recycling marking
*GB/T 2664-2009 Mens suits and coats
*GB/T 14272-2011 Down Garments
*GB/T 14272-2021 Down garments
*GB 4706.1-2005 Household and Similar Electrical Appliances – Safety - Part 1: General Requirements
*GB 4806.7-2016 National Food Safety Standard - Food Contact Plastic Materials and Articles
*GB 18401-2003 National General Safety Technical Code for Textile Products
*GB 18401-2010 National general safety technical code for textile products
GB/T 9251-2022 is referred in:
*GB 8334-2011 Periodic inspection and evaluation of liquefied petroleum steel gas cylinders
*GB/T 11640-2021 Seamless aluminum alloy gas cylinders
*GB 5842-2006 Liquefied petroleum gas cylinders
*GB 11640-2011 Seamless aluminum alloy gas cylinders
*GB/T 5842-2022 Liquefied petroleum steel gas cylinders
*GB/T 24159-2022 Welded insulated cylinders
*GB/T 5100-2020 Welded steel gas cylinders
*T/CATSI 02007-2020 Fully-wrapped carbon fiber reinforced cylinder with a plastic liner for the on-board storage of compressed hydrogen as a fuel for land vehicles
*GB/T 42626-2023 Periodic inspection and evaluation of fully wrapped fibre reinforcedcomposite gas cylinders of compressed hydrogen gas for automotive vehicles
*GB/T 5099.3-2017 Seamless steel gas cylinders―Part 3:Normalized cylinders
*GB/T 35544-2017 Fully-wrapped carbon fiber reinforced cylinders with an aluminum liner for theon-board storage of compressed hydrogen as a fuel for land vehicles
*GB/T 5099.1-2017 Seamless steel gas cylinders―Part 1:Quenched and tempered steel cylinders with tensile strengthless than 1 100 MPa
*GB/T 2666-2001 Vomen and mans trousers
*YY 0285.1-1996 Disposable Sterile intravascular catheters and accessories - Part 1: General requirements
*GB 5842-2023 Liquefied petroleum steel gas cylinders
*GB 4351-2023 Portable fire extinguishers
*GB/T 19533-2024 Periodic inspection and evaluation of steel gas cylinders for the on-board storage of compressed natural gas as a fuel for automotive vehicles
Code of China
Standard
GB/T 9251-2022  Methods for hydrostatic test of gas cylinders (English Version)
Standard No.GB/T 9251-2022
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8500 words
Price(USD)255.0
Implemented on2022-10-1
Deliveryvia email in 1 business day
Detail of GB/T 9251-2022
Standard No.
GB/T 9251-2022
English Name
Methods for hydrostatic test of gas cylinders
Chinese Name
气瓶水压试验方法
Chinese Classification
J74
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2022-03-09
Implemented on
2022-10-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 9251-2011 Methods for hydrostatic test of gas cylinders
Language
English
File Format
PDF
Word Count
8500 words
Price(USD)
255.0
Keywords
GB/T 9251-2022, GB 9251-2022, GBT 9251-2022, GB/T9251-2022, GB/T 9251, GB/T9251, GB9251-2022, GB 9251, GB9251, GBT9251-2022, GBT 9251, GBT9251
Introduction of GB/T 9251-2022
Methods for hydrostatic test of gas cylinders English 1 Scope This document specifies the methods for hydrostatic test of gas cylinders and the basic requirements for test devices. This document is applicable to the hydrostatic test of gas cylinders with a nominal working pressure not greater than 70MPa (gauge pressure, the same below). This document is not applicable to gas cylinders already filled with solid packing. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 13005 Terminology of gas cylinders GB/T 35015 Calibration method for calibrated cylinder used in water jacket hydrostatic test JJG 539 Verification regulation of digital indicating weighing instrument JJG 1036 Verification regulation for electronic balance 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 13005 and the following apply. 3.1 testing cylinder gas cylinder to be tested or under test 3.2 pressure proof test process of testing and verifying the safe bearing capacity of a testing cylinder after it is pressurized to the hydrostatic test pressure and kept with it for a specified period of time 3.3 water jacket method test method for determining the values of total volumetric expansion, elastic volumetric expansion and permanent volumetric expansion of a testing cylinder by placing the cylinder in a special water jacket to pressurize it to the hydrostatic test pressure and hold for a specified period of time, and then measuring the quantity of water overflowed from the jacket and the quantity of remaining overflow after pressure relief 3.4 direct expansion method test method for determining the values of total volumetric expansion, elastic volumetric expansion and permanent volumetric expansion of a testing cylinder by placing the cylinder in a special water jacket to pressurize it to the hydrostatic test pressure and hold for a specified period of time, and then reading the indications of the water quantity measuring instrument for the quantity of pressed water after pressure application and that of remaining water after pressure relief 3.5 special water jacket special device used to determine the volumetric expansion of a testing cylinder generated during the water jacket hydrostatic test 3.6 calibrated cylinder cylinder-type device which has the corresponding relationship between the calibration pressures and its expansion values (characteristic of repeatability and linearity already determined) and will suffer no permanent deformation any more under calibration pressure, used to calibrate the accuracy of the hydrostatic test devices for gas cylinders 3.7 calibrated gauge pressure measuring meter, used to calibrate the pressure of the test system, whose accuracy level shall not be less than those of any other pressure measuring instrument 3.8 reference zero point zero reading on water quantity measuring instrument, with its error to be ±0.1% of the total volumetric expansion or ±0.1mL, whichever is larger 4 Principle In the hydrostatic test on a gas cylinder, the testing cylinder has its inner pressure gradually increased at the specified pressurization rate to the hydrostatic test pressure and maintained for a specified period of time. By different test methods, test and verify the safe bearing capacity of the testing cylinder, and determine the total volumetric expansion, elastic volumetric expansion under the hydrostatic test pressure (if required) and the permanent volumetric expansion after pressure relief of the testing cylinder.   5 Test conditions 5.1 The test water shall be clean fresh water. If the testing cylinder is made of steel containing chrome alloy, the chloride ion content in the test water shall not be larger than 25mg/L. In the test on a testing cylinder filled with oxygen or other strong oxidizing medium, the test water injected or pressed into cylinder shall not be contaminated by grease.
Contents of GB/T 9251-2022
Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Test conditions 6 Equipment and instruments 7 Pressure proof test 8 Water jacket method 9 Direct expansion method 10 Rules for rounding of numerical values 11 Precautions for test Annex A (Nominative) Calibration of water jacket test devices Annex B (Informative) Average coefficient of compressibility of water
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: TransForyou Co., Ltd. 2008-2040
 
 
Keywords:
GB/T 9251-2022, GB 9251-2022, GBT 9251-2022, GB/T9251-2022, GB/T 9251, GB/T9251, GB9251-2022, GB 9251, GB9251, GBT9251-2022, GBT 9251, GBT9251