Qualification of Low-E polymer spring-energised seals in compliance with class AH fugitive emission standards.[R] Author: Filip Rousseau - R&D Group Leader Company: Saint Gobain Seals Download Abstract In 2014, Saint Gobain Seals developed a bespoke OmniSeal ® stem sealing solution consisting of single seal compliant with ISO 15848 1 and SHELL MESC SPE 77 300 class BH for quarter turn valves