: The valve body must be hydrostatically tested to 1.5 times the rated Cold Working Pressure (CWP).
4.1 Fasteners manufactured under this standard shall be constructed from A-286 steel or similar alloys with a minimum ultimate tensile strength of 160,000 psi. 4.2 Unlike previous iterations, MS812021 mandates a proprietary aluminum-ceramic coating (Accommodated under Table 2, Class IV-A) to eliminate the potential for hydrogen embrittlement common in cadmium plating. ms812021 standard pdf
: Methods for taking representative samples from a batch and the standardized mechanical "puffing" procedures used to measure smoke components. Marking and Labeling : The valve body must be hydrostatically tested to 1