OSHA 29 CFR 1910.269 “The employer shall ensure that each employee who is exposed to the hazards of flames or electric arcs does not wear clothing that, when exposed to flames or electric arcs, could increase the extent of injury that would be sustained by the employee.”
FTMS 191A 5903.1 A vertical flame test that only determines if the fabric extinguishes after removal of the ignition source. (General application of this test method requires the material self-extinguish within two seconds and that no more than six inches of the material maybe consumed by the flame.) (Now ASTM D 6413)
ASTM F1891-00 A Standard Specification for flame and arc resistant rainwear that includes various performance criteria for strength and water resistance of materials and seams. Reported data includes ATPV, Ebt, HAF, afterflame, charring, dripping, embrittlement, melting, and shrinkage.
ANSI/ISEA 107-1999 The first ever US Criteria for high visibility apparel establishes three categories of worksite visibility. While only a voluntary standard at this time (7/2000), its adoption throughout government and industry anticipated. ANSI 107-1999 specifies that only certain colors are acceptable for high visibility garments, focusing primarily on background and reflective materials.
Garments meeting only the minimum requirements of the standard, Conspicuity Class 1, may be suitable for workers not directly in vehicle traffic paths and where vehicle speeds are less than 25 mph. Class 2 covers workers in inclement weather, workers closer to moving traffic than in Class 1 or near traffic above 25 mph but less than 50 mph. The highest level of protection, Class 3, covers high-risk work environments and situations where weather, work or other factors impair visibility or where traffic exceeds 50 mph.