Healthcare Chemical Waste and Vent Piping or Laboratory Chemical Waste and Vent Piping serve several fundamental functions: safely transport chemical wastes and vapors to a proper disposal location, protect people from leakage of dangerous liquids and toxic gases, ensure fire safety to protect people, property and equipment from damage, and offer continuous maintenance-free service without shut-down for repairs. Several materials are commonly used: borosilicate glass, high-silica iron and thermoplastics. Designers and engineers are encouraged to consider several factors when specifying these materials: chemical resistance, thermal expansion, fire-ratings, replacement costs and product sustainability.
The following Industry Associations keep online databases containing additional information on products in the category:
IAPMO International Association of Plumbing & Mechanical Officials certifies manufacturer`s product that meet the requirements of the Uniform Plumbing Code (UPC). Look for products bearing the UPC mark to ensure compliance.
UL Underwriter`s Laboratories ensures compliance and lists the manufacturers` products that meet fire safety standards. In the case of piping systems, these are ANSI/UL 1479 (ASTM E814-02), "Fire Tests of Through-Penetration Firestops" and ANSI/UL 723 (ASTM E84 and NFPA 255), "Test for Surface Burning Characteristics of Building Materials." Look for products bearing the UL mark to ensure compliance.
ASTM American Society for Testing and Materials maintains standards for glass, iron and plastic pipe and fittings used in DWV (Drain, Waste and Vent) systems.