1. GOST 12.4.249-2013
Occupational safety standards system. Individual protective respiratory devices. Compressed oxygen or compressed oxygen-
nitrogen type self-contained clos-circuit breathing apparatus. General technical requirements. Test methods. Marking
ГОСТ 12.4.249-2013
Система стандартов безопасности труда. Средства индивидуальной защиты органов дыхания. Автономные изолирующие
дыхательные аппараты на сжатом кислороде или кислородно-азотной смеси. Общие технические требования. Методы
испытаний. Маркировка
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