Provide adequate ventilation in areas using argon. Provide monitoring for areas where oxygen displacement may occur. OSHA has established 19.5% oxygen concentration as the minimum for working without supplied air.

• 必须为正在使用氩的地方提供充分的通风。对氧迁移可能发生的地方进行监测。OSHA确定19.；5%25作为没有补充空气情况下工作时氧的最小浓度。