DIN 38409-28:1992-04

Отменен

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of bound nitrogen after reduction with Devarda's alloy and catalytic digestion (H 28) — 10 стр.

Описание Изменения Ссылки Версии

Ссылочные документы

DIN 12576:1976-03

Действует

Laboratory glassware; narrow jacketed, straight form condenser with standard ground joints — 2 стр.

DIN 12664-1:1983-08

Отменен

Laboratory glassware; one-mark volumetric flasks; volumetric flasks with flanged edge, conical socket and conical joint — 4 стр.

DIN 12680-1:1975-10

Отменен

Laboratory glassware; graduated measuring cylinders — 4 стр.

DIN 12691:1975-04

Отменен

Laboratory glassware; one-mark pipettes, short delivery time, waiting time 15 s, class AS — 4 стр.

DIN 12700-3:1975-03

Отменен

Laboratory glassware; burettes with stopcock, offset, oblique bore with tail — 2 стр.

DIN 38406-5:1983-10

Действует

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonia-nitrogen (E 5) — 14 стр.