Explosive atmospheres - Part 37: Non-electrical equipment for explosive atmospheres - Non-electrical type of protection constructional safety "c", control of ignition sources "b", liquid immersion "k" (ISO 80079-37:2016)
爆炸性环境.第37部分:爆炸性环境用非电气设备.非电气型防护结构安全“c”、火源控制“b”、液体浸入“k”(ISO 80079-37-2016)