ANSI Z21.15B-2006 pdf download Manually Operated Gas Valves For Appliances, Appliance Connector Valves and Hose End Valves
2.10 Marking Material Adhesion And Legibility
The adhesive quality and legibility of marking materials shall not be adversely affected when marking materials are exposed to heat and moisture as specified in the following Method of Test.
Marking material recognized as complying with the CSA Standard for Adhesive Labels, CSA C22.2 No.0.1 5 or UL 969, Marking and Labeling Systems, are exempt from this test.
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