STM PDF

Plastics - Polycarbonate (PC) moulding and extrusion materials - Part 2- Preparation of test specimens and determination of properties. Original standard ISO 7391-2-2006 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 21305-2-2019

Fine bubble technology - Evaluation method for determining surface tension of ultrafine bubble dispersions. Original standard ISO 7392-2024 in PDF full version. Additional info + preview on request

Document status: Active

Water quality - Determination of free chlorine and total chlorine - Part 1- Titrimetric method using N,N-diethyl-1,4-phenylenediamine. Original standard ISO 7393-1-1985 in PDF full version. Additional info + preview on request

Document status: Active

Water quality - Determination of free chlorine and total chlorine - Part 1- Titrimetric method using N,N-diethyl-1,4-phenylenediamine - Technical Corrigendum 1. Original standard ISO 7393-1-1985 cor1-2001 in PDF full version. Additional info + preview on request

Document status: Active

Water quality - Determination of free chlorine and total chlorine - Part 2- Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes. Original standard ISO 7393-2-2017 in PDF full version. Additional info + preview on request

Document status: Active

Water quality - Determination of free chlorine and total chlorine - Part 3- Iodometric titration method for the determination of total chlorine. Original standard ISO 7393-3-1990 in PDF full version. Additional info + preview on request

Document status: Active