Pressure-Indicating Gauges for Compressed Gas Service

Designation Number:
ANSI/CAN/UL/ULC 404
Standard Type:
National Standard of Canada - Domestic
Standard Sub-Type
Joint Canada-U.S. National Standard
Standard Development Activity:
New Standard
ICS code(s):
17.100
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

Note: The standards development activity for this NOI (originally published on February 22, 2022), was updated by the responsible SDO on March 1, 2022.

1.1 These minimum requirements cover indicating pressure gauges of the elastic element type usually employed in the high-pressure side of regulators or reducing valves used on compressed gas containers or cylinders of oxygen, hydrogen, nitrogen, and other gases. Such gauges usually have pressure ranges of 0 – 500, 0 – 1000, 0 - 1500, 0 - 2000, 0 - 3000, 0 - 4000, 0 - 5000, or 0 - 6000 pounds per square inch (psi) (The related metric gauge ranges are approximately 0 – 3.4, 0 – 6.89, 0 - 10.34, 0 - 13.78, 0 - 20.68, 0 - 27.56, 0 - 34.47, or 0 - 41.36 MPa).

1.2 Gauges employed in the low side of regulators with ranges of 1000 psig (6.89 MPa) or less, shall comply with the Standard for Compressed Gas Regulator Accessories, UL/ULC 252A.

Project need:

The Interprovincial Gas Advisory Council (IGAC) requested ULC Standards to develop a National Standard of Canada using ULC/ORD-C404-74, Guide for the Investigation of Gauges, Indicating Pressure for Compressed Gas Service, and ANSI/UL 404, Gauges, Indicating Pressure, for Compressed Gas Service as the base documents.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.