GB 28053-2011: Translated English of Chinese Standard. GB 28053-2011: Composite cylinders for breathing apparatus
https://www.chinesestandard.net, 2020 M04 25 - 30 pages
This standard specifies the types and parameters, technical requirements, test methods and qualification standards, inspection rules and markings, packaging, transportation and storage requirements of fully wrapped carbon-fiber reinforced aluminum liner composite cylinders for breathing apparatus. This standard applies to the design and manufacture of gas cylinders which have a nominal working pressure not greater than 30 MPa, a nominal volume of not greater than 12 L, an ambient temperature of use of -40-degree ~ 60-degree, is refillable of breathing gas.
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Test methods and qualification criteria
Appendix B Informative Calculation method of threads shear stress safety
according aluminum alloy aluminum and aluminum angle Appendix applicable barrel batch inspection bottom calculated carbon-fiber certificate for batch compressive stress cylinder opening damage deformation design wall thickness documents elastic expansion exceed external thread fatigue test follows Fully wrapped gas cylinder manufacturer Gas cylinder’s glass fiber heat treatment hydraulic burst test hydraulic test pressure hydrostatic test ignition inner internal internal thread leakage less limit liner load marking material maximum meanwhile measured mechanical properties meet the requirements method shall comply millimeter minimum burst pressure minute nominal volume nominal working pressure outer surface packaging perform placed Product provisions of GB/T Qualification criteria quality certificate quantity reinforced relevant remaining burst pressure requirements of GB/T resin safety factor shoulders specified specimen standard structure Table technical temperature tensile strength test method test of gas test steps thread teeth thread’s shear stress transportation type test valve zero pressure