Dr. Bruno Lange AG

Here you will find the right solution for your measuring task: from simple test strips to ready-to-test, DIN-compliant cuvette tests, from pocket testers to UV-VIS spectrophotometers or laboratory automats, from samplers to on-site analyzers with controller systems, including advice and technical service.

* 1931 Dr. Bruno Lange invents the selenium photoelement * 1933 Foundation of the company in Berlin-Dahlem * 1973 Foundation of the environmental analysis and industrial measurement technology division in Düsseldorf * 1975 First COD as a cuvette test * 1975 First microprocessor-controlled photometer with reference beam technology * 1978 Return and proper disposal of all reagents * 1984 First continuous nitrate measurement without the use of chemicals * 1988 Development of biological toxicity tests * 1991 New generation of automatic analyzers for ammonium and phosphate * 1992 Barcode-controlled cuvette tests * 1993 First direct continuous nitrate measurement * 1995 World's first TOC cuvette test, certified according to DIN EN ISO 9001 * 1997 World's first AOX cuvette test * 1998 Integration into the DANAHER Corporation, USA * 2000 First continuous TOC analyzer * 2001 LANGE and HACH join forces in Europe as LANGE GROUP * 2003 Optical oxygen measurement LDO for process and laboratory * 2004 HACH and LANGE integrate further strong partners into the HACH LANGE platform, e.g. BÜHLER, GLI, LACHAT, POLYMETRON, RADIOMETER ANALYTICAL, SIGMA