Phenolic Yellowing Test Part 1

[@samimostafa3912]

Excellent

[@asifjavaid6443]

Sir how many bht free sheets required for 1 test.as directed in test there are three leyers

[@johncrocker5784]

Hello, yes you need to use 3 layers to ensure it is properly sealed for a controlled test

[@samimostafa3912]

Excellent

[@khanshajol2566]

Outstanding

[@borishaa6174]

👍