Dry Chemical Powders for Fire Fighting —— BC, ABC and D Types —— Specification ( Third Revision )

This document specifies the requirements and test methods for dry chemical powders of types BC, ABC, and D intended for use in fire extinguishing systems. It covers aspects such as composition, physical properties, performance characteristics, and packaging. The standard outlines the classification of the powders based on their fire extinguishing capabilities and provides guidelines for their storage and handling. It is applicable to manufacturers, suppliers, and users of dry chemical powders for fire protection purposes. The document includes detailed procedures for conducting various tests to ensure the powders meet the specified performance criteria. It also addresses marking and labeling requirements to facilitate proper identification and use of the products. This standard is intended to be used in conjunction with relevant fire safety regulations and codes.