ANSI Z21.63A-2001 pdf download PORTABLE TYPE GAS CAMP HEATERS
1.4 MATERIALS
1.4.7 All nonmetallic, internal parts of gas controls shall not crack, harden, swell more than 25 percent,shrink more than 1 percent, lose more than 10 percent weight, or otherwise deteriorate sufficiently to permit leakage or cause malfunction when:
Parts made of a compound affected by aging are exposed to air for 70 hours at 212°F (100°C); and
b.Parts are immersed for 70 hours in normal hexane.
1.8 MANUALLY OPERATED GAS VALVES
1.88 Manually operated gas valve bodies shall have a burst strength of 550 psi (3792 kPa).
1.9 GAS PRESSURE REGULATORS
19.4 The body of a gas pressure regulator inlet portion shall have a burst strength of 550 psi(3792 kPa).