PR97®, PR97 Ultra™ and PR97 Comfortknit™ Data 


ISO 9185 Protective Clothing - Assessment of Resistance of Materials to Molten Metal Splash

The following information applies ONLY to PR97® fabric. It should not be read that finished PR97® garments, when tested, will report the same results.  

ISO 9185 specifies a method for assessing the heat penetration resistance of materials intended for use in clothing to protect against large splashes of molten metal. It provides specific procedures for assessing the effects against large splashes of molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel.

The principle of the test method is applicable to a wider range of hot molten materials than those for which specific procedures are set out, provided that appropriate measures are applied to protect the test user. 

Single layer and multi-layer fabrics are tested by pouring measured quantities of molten metal at a specific angle onto the test specimen.

The damage is assessed by placing a PVC film (having similar qualities to human skin) underneath the test specimen and noting damage after pouring. Any adherence of metal to the specimen is noted. Fabrics are classified according to the minimum quantity of molten metal required to cause damage to the PVC film. 


PR97®

Fabric

Weight (gsm)

Molten Aluminium

Grams

Molten Cryolite

Molten Iron

Grams

PR97® 265 265 D1 100 - 200  75 grams E1 60 - 120
PR97® 320 320 D3 200 - 350  85 grams E3 120 - 200
PR97® 380 380 D3 350 + > 100 grams  E3 200 +

  


PR97 Ultra™ 

Fabric

Weight (gsm)

Molten Aluminium

Grams

Molten Cryolite

Molten Iron

Grams

PR97 Ultra™ 220 220 D1 100 - 200   E1 60 - 120
PR97 Ultra™ 250 250 D2 200 - 350   E2 120 - 200
PR97 Ultra™ 290 290 D3 350 +  > 100 grams E3 200 +
PR97 Ultra™ 320 320 D3 350 +   E3 200 +

  


PR97 Comfortknit™

Fabric

Weight (gsm)

Molten Aluminium

Grams

Molten Iron

Grams

PR97 Comfortknit™ 165 165 Not Tested   Not Tested  
PR97 Comfortknit™ 230 230 D1 100 - 200 E1 60 - 120

 

PR97 Comfortknit™ is a lightweight fabric for use as a flame retardant undergarment providing a complete and complimentary PR97® layering system for protection against flame, molten metal splash and electric arc.


PR97® and PR97 Ultra™ Compliance For Related Thermal Hazards