Answer :
Final answer:
The question refers to firestop standards ASTM E814 and UL 263, which are used to test the fire resistance in building materials and systems. They are crucial for ensuring the safety of buildings.
Explanation:
The student's question refers to the United States firestop standards: ASTM E814 or UL 263. These standards both involve fire tests of building construction and materials, specifically ASTM E119, which pertains to fire resistance. UL 263, also known as the Standard for Fire Tests of Building Construction and Materials, is a method to measure the fire resistance of roofing, walls, and floor-ceiling systems. Similarly, ASTM E814 is a commonly used test method to assess the fire resistance of through-penetration firestops, which are materials designed to stop the spread of fire through openings in fire-rated walls or floors. A detailed understanding of these standards is crucial to engineers and architects to ensure the safety of buildings and structures.
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