The document specifies a method for the determination of the gauge vapour pressure of liquefied petroleum gas products at a temperature from 35 ?up to and including 70 ?
DIN EN ISO 4256:1999 history
1999DIN EN ISO 4256:1999 Liquefied petroleum gases - Determination of gauge vapour pressure - LPG method (ISO 4256:1996); German version EN ISO 4256:1998