

专家解读视频
ISO 13259:2010 specifies three basic test pressures for determining the leaktightness of elastomeric sealing ring type joints for buried thermoplastics non-pressure piping systems.
ISO 13259:2018 - Identical
EN ISO 13259 : 2018 - Identical
EN ISO 13259 : 2018 - Identical
ISO 13259:2018 - Identical