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What is an acceptable gas test?

OSHA dictates that the minimum safe level of oxygen in a confined space is 19.5%, while the maximum safe level of oxygen in a confined space is 23.5%.

How long is a gas test?

Acceptable Gas Line Pressure Drop It is common for standard gas line inspections to require lines hold three times their working pressure load for at least 30 minutes. Typically, if the gas line loses approximately 2 psi from a test of 20 psi on the line, the lines are acceptable.

How to do a gas test?

How to carry out a Tightness Test with a Gas Test Gauge? Step 1 Connect the Gas Test Gauge. Step 2 Open the Supply Valve. Step 3 Observe the Gas Test Gauge for 1 Minute. Step 4 Slowly Open the Valve to 20mbar. Step 5 Wait 1 Minute. Step 6 Observe the Gas Test Gauge for 2 Minutes.