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DIN EN ISO 9308-4
Water quality - Detection and enumeration of Escherichia coli - Part 4: Membrane filtration method for water with high levels of background bacteria
DIN EN ISO 19396-1
Paints and varnishes - Determination of pH value - Part 1: pH electrodes with glass membrane (ISO/DIS 19396-1:2024); German and English version prEN ISO 19396-1:2024
ISO/AWI 25175
Standard test method for performance of reverse osmosis (RO) and nanofiltration (NF) membrane element
ISO/AWI TS 11665-13
Measurement of radioactivity in the environment - Air: radon 222 - Part 13: Determination of the diffusion coefficient in waterproof materials: membrane two-side activity concentration test method
ISO/CD 9308-4
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 4: Membrane filtration method for Escherichia coli in water with high levels of background bacteria
ISO/DIS 19396-1
Paints and varnishes - Determination of pH value - Part 1: pH electrodes with glass membrane
CEN/TC 272 -dormant
Metrology of porous filtration membranes
ISO/TC 147/SC 4/WG 30
E. coli by membrane filtration
CEN/TC 69/WG 15
Diaphragm valves
NA 003-02-02-02 AK -dormant
Flow volume regulator with double diaphragm and protection device
