Photographic lenses; method for measuring the spectral transmittance
Edition 1993-04

Transmisson of optical radiation; optical clear (nonscattering) media, quantities, symbols and units
Edition 1972-06

Testing of optical components; focussing screens
Edition 1971-03

Testing of pigments and extenders - Determination of the relative scattering power of white pigments for different pigment volume concentrations (PVC) - Grey paste method
Edition 2019-01

Projection of still pictures and motion-pictures - Part 4: Reflection and transmittance characteristics of screens; characteristic values, screen types, measurement
Edition 1998-12

Ultrasonics - Hand-held probe doppler foetal heartbeat detectors - Performance requirements and methods of measurement and reporting (IEC 61266:1994); German version EN 61266:1995
Edition 1996-06

Road vehicles - Measurement of scattered light of safety glazing materials for vehicle glazing - Part 1: Annular diaphragm method
Edition 1998-12

Lengths of stitches for fastening two hole and four hole buttons
Edition 1968-05

Printing technology - Terminology in reproduction technology
Edition 2020-02

Testing the abrasion resistance of automotive glazing with the windscreen wiper test
Edition 2019-10