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ST1 Dust Protection

ST1 Dust Protection Class

Kst less than 200 bar m/sec

Dust is a solid material that can be highly combustible when in a contained vessel. To separate different dust types based on their Kst value into categorical protection groups, we use classes ST1, ST2 and ST3. This way, we can efficiently identify the best protection to use against dust explosions of varying material types.


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