NYTT FORFARANDE FOR PROVTAGNING FRAN FORORENADE YTOR, DER FORORENINGARNAS HALT SEDAN KAN BESTEMMAS MED VOLUMETRISKA ANALYSMETODER

摘要

A water proof strip of latex film which has an adhesive layer on one side is stuck on the surface. The strip is pierced and a suitable dissolving liquid is injected. The liquid is then sucked back into the injecting device and removed for analysis by a volumetric method.