What does UL 723 mean?
Surface Burning Characteristic of Building Materials test
The UL 723 Surface Burning Characteristic of Building Materials test is a standard of Underwriters Laboratories (UL) that measures the burning properties, or fire resistance, of building materials that may be exposed to flames.
What is ASTM E84 rating?
The ASTM E-84 is the standard test method for assessing the surface burning characteristics of building products to explore how the material might contribute to flame spread in the event of a fire. The test reports the Flame Spread index and Smoke Developed index of the tested product.
What does a Class C fire rating mean?
A Class C or Class 3 fire rating has a flame spread rating between 76 and 200. This rating incorporates building materials like plywood, fiberboard, and hardboard siding panels. It also includes any of the faster burning whole woods.
What are UL 723 and ASTM E84?
For example, Underwriters Laboratories Inc. (UL) developed UL 723 (now called ANSI/UL 723) and the American Society for Testing and Materials (ASTM) has adopted this UL test into its own standard as ASTM E84. This industry standard outlines the test procedure for evaluating surface burning characteristics of interior wall finish materials.
What is ASTM E84 used for?
For applications where the material is adhered to drywall. What is the purpose of ASTM E84? ASTM E84, also referred to as “E84”, is the standard test method used to assess the surface burning characteristics of a material used for interior wall and ceiling finishes, with results measured by Flame Spread Index (SFI) and Smoke Developed Index (SDI).
What is the difference between ASTM E-84 and CAN/ULC S102?
Canadian ASTM E84 Testing The main differences between the US method ASTM E-84 and the Canadian method CAN/ULC-S102 have to do with the mounting of the test samples in the Steiner Tunnel and the number of samples tested.