Standard [CURRENT]
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This document specifies the safety requirements for the fire, hygiene, and electrostatic properties, as well as the tests for spiral air ducts for underground mining in accordance with DIN 21605 and for flat air ducts in accordance with DIN 21606. This document has been prepared by Working Committee NA 045-02-05 AA "Fördergurte" ("Conveyor Belts") at DIN Standards Committee Elastomer Technology NET).
This document replaces DIN 22100-3:2010-10 , DIN 22100-4:2010-10 .