Quick Answer
An FR label shows the standard, the certifier and the arc rating. For flash fire, look for the NFPA 2112 statement plus a third-party certifier's mark, such as UL. For electrical work, look for ASTM F1506 and an arc rating in cal/cm² (ATPV or Ebt), then match it to your PPE category: CAT 2 needs 8 or more. A tag that only says "flame resistant" proves nothing.
What Each Line on the Label Means
| Label line | What it means | What to check |
|---|---|---|
| NFPA 2112 + certifier mark | Certified for flash fire (oil, gas, refinery) | The mark is there; Bulwark says you can confirm it on UL's site |
| ASTM F1506 | Arc-rated fabric for electrical work | An arc rating is printed with it |
| ATPV or Ebt, cal/cm² | The arc rating | 8+ for CAT 2, 25+ for CAT 3, 40+ for CAT 4 |
| CAT or HRC number | The PPE category it reaches | HRC is the old name for the same levels |
| Fiber and care | What it's made of | Follow it every wash |
FAQ
Is "meets the performance of NFPA 2112" the same as certified?
No. A certified garment carries the certifier's mark.
ATPV or Ebt: which is better?
Neither. Both are arc ratings in cal/cm²; the test reports whichever limit the fabric hit first.
What if the label is faded or cut out?
You can't confirm the rating, so treat it as unrated. See when to replace FR clothing.
More: FR rating guide, FR vs AR, washing FR, FR shirts, FR clothing and company FR programs.