DIN EN ISO 13844 : 2022 Title: Plastics piping systems - Elastomeric-sealing-ring-type socket joints for use with plastic pressure pipes - Test method for leak tightness under negative pressure, angular deflection and deformation (ISO 13844:2022); German and English version EN ISO 13844:2022 Year: 2022 Publisher: DIN Media GmbH Availability: Within 1-2 working days