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B-class division
A fire barrier system consisting of bulkheads or decks and including all penetrations for piping and cables, doors, windows, and ductwork, providing 30 minutes of fire resistance when tested in accordance with established test methods.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Fire safety
- Category: Prevention & protection
- Company: NFPA
- Product:
- Acronym-Abbreviation:
Other Languages:
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