Table 1 to § 1610.4 -Summary of Test Criteria for Specimen Classification
[See § 1610.7 ]
Class | Plain surface textile fabric | Raised surface textile fabric |
1 | Burn time is 3.5 seconds or more ACCEPTABLE (3.5 sec is a pass) | (1) Burn time is greater than 7.0 seconds; or (2) Burn time is 0-7 seconds with no base burns (SFBB). Exhibits rapid surface flash only. ACCEPTABLE. |
2 | Class 2 is not applicable to plain surface textile fabrics | Burn time is 4-7 seconds (inclusive) with base burn (SFBB). ACCEPTABLE. |
3 | Burn time is less than 3.5 seconds. NOT ACCEPTABLE | Burn time is less than 4.0 seconds with base burn (SFBB). NOT ACCEPTABLE. |
16 C.F.R. §1610.4