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ASTM F955 - 15 (Reapproved 2021)
ASTM International (ASTM)
Title

"Standard Test Method for Evaluating Heat Transfer through Materials for Protective Clothing Upon Contact with Molten Substances "

Description

This test method rates materials, that are intended for protective clothing against potential molten substance contact, for their thermal insulating properties and their reaction to the test exposure.

Standard Type(s)
Test Method

A definitive procedure that produces a test result: Examples of test methods include, but are not limited to: identification, measurement, and evaluation of one or more qualities, characteristics, or properties. A precision and bias statement shall be reported at the end of a test method.

Personal Protective Equipment
Body Protection

All items of clothing and/or accessories (whether or not detachable) designed and manufactured to provide specific protection. This includes bullet-proof clothing, general protective clothing and full body ensembles that protect from cuts, radiation, temperature extremes, hot splashes from molten metals and other hot liquids, potential impacts from tools, machinery and materials and hazardous chemicals. Examples of body protection include laboratory coats, coveralls, vests, jackets, aprons, surgical gowns and full body suits

  • Thermal protective clothing
Hazards
Thermal
  • Flame and Thermal
Standard References
Referenced Standard

ASTM F1494 - 23(https://wwwn.cdc.gov/PPEInfo/Standards/Info/ASTMF149423) - Standard Terminology Relating to Protective Clothing

Conformity Assessment Notes

This test method covers the evaluation of materials' thermal resistance to heat transfer when exposed to a molten substance pour.  Please see the full standard for complete details. 

Comments

The clothing used should provide some protection. Whether personal injury results from such contact depends on the resistance of the material from which the clothing is made to molten substance contact and the amount of heat transferred through the material to the wearer. Visual inspection of the specimen subjectively notes the material’s resistance to molten substance contact.

Additional References:

ASTM Standards

  • D123 Terminology Relating to Textiles
  • E457 Test Method for Measuring Heat-Transfer Rate Using a Thermal Capacitance (Slug) Calorimeter
  • F1002 Performance Specification for Protective Clothing and Materials for Use by Workers Exposed to Specific Molten Substances and Related Thermal Hazards
  • F1494 Terminology Relating to Protective Clothing Workers may be exposed to contact with molten substances
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