Water is perhaps the most utilized reagent in a laboratory and is often critical for an experiment. As instruments have become more sensitive and applications increasingly complex, the demand for high-purity water has also increased. A few years ago, parts per million (ppm) was a very small level of contamination, but now people are looking for partsper- billion (ppb) or parts-per-trillion (ppt) levels of contamination.
There are eight commonly used methods to purify water: distillation, deionization, reverse osmosis, activated carbon filtration, microporous filtration, ultrafiltration, ultraviolet oxidation and electrodialysis. The National Committee for Clinical Laboratory Standards (NCLS) has specified three types of water: I, II and II, as well as special-purpose water, depending on their use.
As part of our new online Lab Products Survey series, we present here results from our recent survey on purchasing a water purification system. Total completed surveys: 374
Number of Water Purification Systems installed within labs.
Most widely used Water Purification System brands currently in labs.
The primary purpose for this product.
Satisfaction with Water Purification Systems being used.
Feed source for principal Water Purification Systems.
Required purity level of ASTM Standards Lab Water?
Budget range for Lab Water Purification System accessories.
Water Purification System components also being used.
Purchasing plans for a new or used Water Purification System.
Reasons for purchasing a new or pre-owned Lab Water Purification System.
Budget range for a Water Purification System purchase.
Factors/features in the decision-making process to buy a Water Purification System rated by importance.
Respondents fields of work.
If you would like to participate in our laboratory equipment purchasing surveys, please visit www.labmanager.com/surveys