Gaseous air pollution measurement; preparation of PAN calibration gas; calibration of a PAN analyzer.
(Messen gasförmiger Immissionen; Herstellen von Peroxyacetylnitrat(PAN)-Prüfgas; Kalibrieren eines Peroxyacetylnitrat-Analysators.)

WITHDRAWN published on 1.6.1985

Gaseous emission measurement - Measurement of nitrous oxide - Automatic infrared spectrometric method.
(Messen gasförmiger Emissionen - Messen von Distickstoffmonoxid - Automatisches infrarotspektrometrisches Verfahren.)

WITHDRAWN published on 1.2.2005

Materials of fine mechanics; moulding materials of polystyrene.
(Werkstoffe der Feinwerktechnik; Polystyrol-Formstoffe.)

WITHDRAWN published on 1.5.1965

Materials of fine mechanics; moulding materials of polyolefine; moulding materials of polyethylene.
(Werkstoffe der Feinwerktechnik; Polyolefin-Formstoffe; Polyäthylen-Formstoffe.)

WITHDRAWN published on 1.2.1968

Materials of fine mechanics; moulding materials of polyolefine; moulding materials of polyprophylene.
(Werkstoffe der Feinwerktechnik; Polyolefin-Formstoffe; Polypropylen-Formstoffe.)

WITHDRAWN published on 1.2.1972

Materials of fine mechanics; moulding materials of polycarbonate.
(Werkstoffe der Feinwerktechnik; Polycarbonat-Formstoffe.)

WITHDRAWN published on 1.8.1967

Materials of fine mechanics; moulding materials of polymethylmethacrylate.
(Werkstoffe der Feinwerktechnik; Polymethylmethacrylat-Formstoffe.)

WITHDRAWN published on 1.11.1969

Polymethylmethacrylate semi-finished products.
(Werkstoffe der Feinwerktechnik; Halbzeuge aus hochmolekularem Polymethylmethacrylat und seinen Co-Polymeren.)

WITHDRAWN published on 1.11.1974

Polyacetal moulding materials.
(Werkstoffe der Feinwerktechnik; Polyacetal-Formstoffe.)

WITHDRAWN published on 1.11.1974

Materials for precision engineering; phenolic moulded materials; phenolic moulded wood flour.
(Werkstoffe der Feinwerktechnik; Phenoplast-Formstoffe; Phenoplast-Formstoffe mit Holzmehl.)

WITHDRAWN published on 1.7.1973