Chemical analysis of ferrous materials; determination of niobium in steels; spectrophotometric method; german version EN 10178:1989
Edition 1990-04

Chemical analysis of ferrous materials; determination of nitrogen (trace amounts) in steels; spectrophotometric method; German version EN 10179:1989
Edition 1990-04

Chemical analysis of ferrous materials; determination of chromium in steels and iron; flame atomic absorption spectrometric method; German version EN 10188:1989
Edition 1990-04

Solid fertilizers  - Measurement of static angle of repose (ISO 8398:1989, modified); German version EN 12047:1996
Edition 1996-11

Hand and machine-operated circular screwing dies and hand-operated die stocks (ISO 2568:1988); german version EN 22568:1989
Edition 1990-06

Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches; manufacturing tolerances on the threaded portion (ISO 2857:1973 incl. AMD 1:1984 and AMD 2:1986); german version EN 22857:1989
Edition 1990-07

Ferromanganese and ferrosilicomanganese; determination of manganese content; potentiometric method (ISO 4159, 1st edition: 1978.12.15); german version EN 24159:1989
Edition 1990-04

Determination of sulfur content of steel and iron by infrared absorption spectroscopy after combustion in an induction furnace (ISO 4935:1989); german version EN 24935:1991
Edition 1992-07

Taps for thread cutting; nomenclature of the main types and terminology (ISO 5967:1981); german version EN 25967:1989
Edition 1990-07

Circular screwing dies; terminology (ISO 5968:1981); german version EN 25968:1989
Edition 1990-07