Question:
Which international standard is followed for testing the flammability of materials using a horizontal and vertical burning test?
A) ISO 4589-2
B) UL 94
C) ISO 5660
D) ASTM D2863
📷 Drop your answer in the comments below!
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#firesafety #RailwaySafety
#firesafety
#firesafety #RailwaySafety