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Application - High-Purity and Ultra-Pure Water (UPW)

High-Purity and Ultra-Pure Water (UPW)  

Extreme clean room conditions demand extreme analysis. The reliable detection and removal of the slightest salt concentrations or the minutest particles prevents costly wastage.


Pharmaceutical companies and manufacturers of semiconductor plates and cosmetics demand maximum purity of the materials they use. Even the water has to meet extremely high quality criteria. Only ultra-pure water that contains virtually no ions is used. The electrical conductivity of the ultra-pure water is even less than that of distilled water.

The key parameters in high-purity water are:

  • TOC
  • Conductivity
  • Ozone for sanitisation with ozone
  • Particle numbers and sizes
  • Dissolved gases (e.g. oxygen and nitrogen in the semiconductor industry)
  • pH

Not only does the production water have to be extra pure, the production environment itself also needs to be as free from particles as possible. This is why airborne particles are regularly measured in clean rooms and even continuously monitored in grade A areas.

HACH offers a comprehensive product portfolio for High-purity and Ultra-pure Water(UPW) analysis.

Local case studies  

Ensure quality with Hach – now!

Keep product quality high and operating costs low, and comply with the regulation as well through tight control of your UPW cycle and continuous measurement of water quality parameters!

Look at how we help these famous Southeast Asia pharmaceutical/ electronics plants in their vital water cycles.

Hach helps world’s famous pharmaceutical company achieve high product quality at low operating costs in Tuas, Singapore

Hach helps one of the largest electronics company achieve high quality product at low operating cost in Woodlands, Singapore

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