LPS 1666 Issue 1.0 Requirements and test procedures for the LPCB approval of direct low pressure (DLP) application fixed fire suppress https://www.defender.com.tr/en/de-seriesion systems. This document specifies the requirements and test procedures for LPCB approval of direct low pressure (DLP) application fixed fire suppression systems, using heat sensitive pneumatic detection tubing, designed for the protection of […]