Standard Number: JT/T 1231-2018(JT/T1231-2018)
Chinese:水面供气式潜水面罩
English:Surface Air Supply Diving Mask
Effective Date:2018-12-01
Standard Applicability:This standard applies to the diving depth of not more than 300 m, gas supply residual pressure (0.6 ~ 1.4) MPa, gas supply flow greater than 500 L / min conditions used in a variety of surface air-supplied diving mask production, inspection and use.
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