Walls FR Product Info
The thermal protective performance of a fabric is measured in what is known as ATPV, or Arc Thermal Performance Value. The larger the ATPV on a fabric is, the more protection it offers. ATPV is a reference tool used to calculate the risk of incident to help workers choose the correct protective clothing system for their working environments.
| Hazard Risk Category (HRC) | Garment Description (number of layers in parenthesis) | Total Fabric Weight oz/yd2 | Required Minimum Arc Rating of PPE CAL/CM2 |
|---|---|---|---|
| 0 | Untreated Cotton (1) | 4.5-7 | n/a |
| 1 | FR Shirt and FR Pants or FR Coveralls (1) | 4.5-8 | 4 |
| 2 | Cotton Underwear with FR Shirt and FR Pants (2) | 9-12 | 8 |
| 3 | Cotton Underwear with FR Shirt and FR Pants with FR Coverall (3) | 16-20 | 25 |
| 4 | Cotton Underwear with FR Shirt and FR Pants with Double Layer Stitching Coat and Pants (3) | 24-30 | 40 |
All FR Fabrics Meets or Exceeds Tests for: NFPA 2112, ASTM 1506, And 70E
| Weight | Description | ATPV | Hazard Risk Category (HRC) |
|---|---|---|---|
| 5.5 oz. | 88% Cotton / 12% Nylon Chambray | 7.0 | 1 |
| 7 oz. | 88% Cotton / 12% High Tenacity Nylon | 9.6 | 2 |
| 9 oz. | 88% Cotton / 12% High Tenacity Nylon | 12.7 | 2 |
| 9 oz. | 100% Cotton Twill | 11.1 | 2 |
| 12 oz. | 100% Cotton Duck | 12.5 | 2 |
| 14 oz. | 100% Cotton Denim | 13.0 | 2 |
| 7 oz. | 88% Cotton / 12 % Nylon FR Twill with 13 oz. Modacrylic Batting QuIlted to FR Twill Lining | 34.3 | 3 |
| 10 oz. | 88% Cotton / 12 % Nylon FR Duck with 13 oz. Modacrylic Batting QuIlted to FR Twill Lining | 37.5 | 3 |