Reference Source

CSA/AM Z21.21

For CSA/AM Z21.21, laboratory is UL LLC; standard title is Automatic Valves for Gas Appliances, verified against its source on 2026-08-10.

Laboratory
UL LLC verified
Standard number
CSA/AM Z21.21 verified
Standard title
Automatic Valves for Gas Appliances verified
Sourceosha.gov
Verified
Review by
DatasetWhich OSHA NRTL is recognized for which test standard: all 21 labs' scopes of recognition, cross-referenced

What the source says

CSA/AM Z21.21 | Automatic Valves for Gas Appliances |

— osha.gov, retrieved 2026-08-10

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.