Manufacturing Solutions Center

Flammability

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Test Method(s):
    · 16 CFR 1610
    · ASTM D6413
    · NFPA 701
    · 191A Method 5903

Flammability of Wearing Apparel - 16 CFR 1610

(45 Degree Flammability)

 

The United States Federal Government requires clothing and textiles intended to be used for clothing to have Normal Flammability (Class 1) as tested with 16 CFR 1610 (ASTM D 1230 Standard Test Method for Flammability of Apparel Textiles). Fabric is mounted at a 45° angle from ignition source.

Some exemptions apply:

• Certain Hats
• Gloves
• Footwear
• Interlining fabric
• Plain surface fabrics, regardless of fiber content, weighing 2.6 oz/yd2 or more (when using ASTM D 3776 to determine the fabric weight)
• Fabric made entirely with these fibers, or blends of these fibers:
  • acrylic
  • nylon
  • polyester
  • modacrylic
  • olefin
  • wool

 

 

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Vertical Flammability

Fabric is mounted vertically with ignition directly under fabric.

Test Methods performed:

• ASTM D6413 - Standard Test Method for Flame Resistance of Textiles (Vertical Test)
• NFPA 701 - Standard Methods of Fire Tests for Flame Propagation of Textiles and Films
• Federal Test Method Standard No 191A Method 5903 - Flame Resistance of Cloth; Vertical

 

 

 

 

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Flammability Exemption for 16 CFR 1610 by Fabric Weight

• Plain surface fabrics, regardless of fiber content, weighing 2.6 oz/yd2 or more (when using ASTM D 3776 to determine the fabric weight)
  • Fabric is cut out, weighed, and oz/yd2 is calculated

 

 

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