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Whether you want to check the carbon content of waste water or keep an eye on the salt content of your process water, when it comes to water analysis, HACH LANGE is the perfect choice. We have years of experience in water analysis and offer a broad range of services.Our company history dates back to Berlin 1933, when Dr. Bruno Lange set up a company in his own name employing six people. Inventions such as the photometer and later on cuvette tests have revolutionised the field of analysis, making it possible to conduct extensive analyses without the need for in-depth knowledge of chemistry.HACH LANGE was born in 2004 when Dr. Bruno Lange joined forces with HACH, an American company specialising in electro and photochemistry. The expertise of these two companies is now combined, benefitting you, our customers!That's not all, our company is continuing to grow and already has 22 subsidiaries around the world, including branches across Europe, China and the USA.


Miss Sarah Blayds
Laser House,

Ground Floor,Suite B
Waterfront Quay, Salford Quays
M50 3XW

Formazin Reference Suspensions

In the new version of European Pharmacopoeia 5.0 / 2.2.1, the visual method of measuring the clarity and opalescence (turbidity) of liquids is accompanied for the first time by an instrumental method. The preparation of the standard solutions is, however, time consuming and labour intensive, and the associated error risk is high.

HACH suspensions are prepared under controlled conditions and are subject to the strictest quality control. For the visual method, HACH supplies reference suspensions in 100 ml bottles and suitable cuvettes made of high quality glass with excellent optical properties. If the instrumental method is used, the sealed vials can be measured directly in the HACH turbidimeter. The 100 ml suspensions are ideal to check the glass cuvettes or when small cuvettes are used (small samples).

A better way: STABL CAL standards. With HACH formazin suspensions, the situation is different:

· No waiting periods
· No health risk
· No sources of error
· Certified quality
· Traceable to NIST standard reference materials

For further information please email HACH LANGE LTD

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