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What do X-type, Y-type, and Z-type mean in terms of positive pressure ventilation purge patterns? Which standard does it fall under?

2020-06-11View Original

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May I ask what X-type, Y-type, and Z-type mean in terms of the positive pressure ventilation purge method for analytical instruments? Which standard does it fall under?
Reply #22020-06-12
Please check the GB 3936.05 standard – there is a significant difference between px, py, and pz; px can be used in Zone I, which is the highest category.

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