International Organization for Standardization (ISO)
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ISO 13757:1996
Scope
This International Standard specifies a method for the determination of the residual matter in liquefied pet-roleum gases (LPG) that remains after evaporation at 105 ℃. This material, termed "oily residues", rep-resents those products that are deposited in vaporizers that are subject to a heat input greater than that of ambient evaporation.