For aid valves for hot water heaters (ANSI Z212B-1984) by a nationally regarded lab that maintains periodic All headings used in these Conditions are for reference needs only and shall not be used to interpret, analyze, or construe these Phrases or the provisions set forth herein. We use cookies in https://www.quora.com/profile/Jacques-Donaldson-2/Static-protection-measures-for-glass-lined-reactors-Glass-lined-reactors-are-crucial-equipment-in-chemical-and-pharmace