Microfilm aperture card for film 35 mm
Edition 1991-01

pH measurement - Measuring methods with potentiometric cells - Terms and definitions
Edition 2016-03

pH measurement - Technical buffer solutions, preferably for the calibration of technical measuring installations
Edition 2012-08

Pipes and fittings made of unplasticized polyvinyl chloride (PVC-U) socket for waste and soil discharge systems inside buildings - Part 10: Fire behaviour, quality control and installation recommendations
Edition 1999-12

Step irons for single-line installation - Step irons for setting in concrete
Edition 2003-04

Measurement of flow of waste water in open channels and gravity conduits; general information
Edition 1983-07

Measurement of flow of waste water in open channels and gravity conduits; venturi flumes
Edition 1983-07

Irrigation - Hygienic concerns of irrigation water
Edition 1999-02

Protection of watercourses, dikes and coastlines
Edition 2023-12

Hydraulic steel structures - Part 1: Criteria for design and calculation
Edition 2014-11