NP EN ISO 13844:2002 Plastics piping systems Elastomeric-sealing-ring-type socket joints of unplasticized poly(vinyl chloride)(PVC-U) for use with PVC-U pipes Test method for leaktightness under negative pressure(ISO 13844:2000)
2002NP EN ISO 13844:2002 Plastics piping systems Elastomeric-sealing-ring-type socket joints of unplasticized poly(vinyl chloride)(PVC-U) for use with PVC-U pipes Test method for leaktightness under negative pressure(ISO 13844:2000)