ASTM E119, Standard Test Methods for Fire Tests of Building Construction and Materials, is the test standard for determining the fire-resistance rating of partitions, floor-ceiling assemblies, roof-ceiling assemblies, beams and columns. Fire tests may be conducted at any one of several recognized facilities.

Fire-RatedFire-resistance ratings have long been used by UL, ASTM and building codes to measure the performance of various constructions for fire containment purposes. As applied to elements of buildings, the fire-resistance rating classifies the ability of an assembly

Gypsum board membranes most commonly used to meet fire-resistance requirements in unique circumstances are described and shown herein; the details and sketches are based on UL Designs U301 and L556, and on GA File Nos. FC 5406 and RC 2601. Copyright © Gypsum Association 2002. All rights reserved.

1 layer 3/4" Thick, USG Structural Panel Concrete Subfloor (USGSP), with long edges tongue and grooved, long dimension of panels to be perpendicular to Joists (UL Type USGSP)

UL Product iQ® Database, is an online search engine platform that helps users find UL Listed and UL Certified products, components and materials. The search function supports keyword searches by file number, product type, category control number (CCN), fire-resistive design or assembly number, and model number.

Two-Hour Ceiling (Based on UL Design L556) The ceiling membrane consists of four layers of 5/8” (15.9 mm) type X gypsum board applied to ceiling framing spaced 24” (610 mm) o.c. with a 7/8” (22 mm) hat-shaped steel furring channel located between the third and face layer.

Fire resistance rating testing on these assemblies is performed in accordance with the American Society of Testing & Materials Standard Methods for Fire Tests of Building Construction and Materials (ASTM E119) or Underwriters Laboratories Fire Resistance Ratings (ANSI/UL 263).

2021年6月11日 · Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for compliance with applicable requirements. The published information cannot always address every construction nuance encountered in the field.

to the limits specified in the UL Design. USG products and systems were the first to ensure that all sound systems are fire-rated and easily specified by a UL Design number. All USG 1- and 2-hour rated floor assemblies are designed to meet the current International Building Code (IBC) and feature USG Levelrock®

Product Category The Product Category, also known as the UL Category Description, describes the product classification under which an item or product is listed. Gypsum Board File Number A code UL has assigned to identify and track this listing.