// CODE SNIPPET
406.4.1 Minimum Standards for Non-Mercury Gauges:
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1. This section establishes minimum standards for non-mercury gauges to test gas piping, drainage and vent systems.
2. Each gauge shall meet the following requirements:
2.1. The gauge shall be manufactured and used in accordance with ASME B 40.100, which incorporates ASME B 40.1 and ASME B 40.7, and the manufacturer shall provide with the gauge a written statement that the gauge is manufactured in accordance with such ASME standard;
2.2. The gauge shall be labeled with the name of the manufacturer;
2.3. The gauge shall be kept in a padded separate rigid box and the manufacturer's instructions for use and protection of the gauge shall be complied with;
2.4. The units of measurement "psig" shall appear on the face of the gauge; and
2.5. The gauge shall be kept in good working order.