News & Updates

Ultrapure Water Purity Requirements for Specific Applications

Parameter ASTM D1193 Type 1 ISO 3696 Type 1 CLSI-CLRW Type 1 HPLC LC-MS ICP-MS & MS Molecular Biology (PCR, RNA, DNA) Cell Culture & Clinical Chemistry Resistivity 18.2 MΩ·cm 18.0 MΩ·cm 18.2 MΩ·cm 18.2 MΩ·cm 18.2 MΩ·cm 18.2 MΩ·cm 18.2 MΩ·cm 18.2 MΩ·cm Conductivity ≤ 0.055 µS/cm ≤ 0.056 µS/cm ≤ 0.055 µS/cm ≤ […]

The Role of Absolute Filters in Producing Ultrapure Water

In the world of laboratories and high-precision industries, ultrapure water (UPW) is a cornerstone for achieving reliable and reproducible results. Whether it’s in molecular biology, semiconductor manufacturing, or pharmaceuticals, the quality of ultrapure water must be uncompromised. This is where absolute filters come into play, acting as critical components in the water purification process. What […]

Why is ultrapure water corrosive?

Ultrapure water is considered corrosive due to its extreme purity and lack of dissolved ions. Here’s why: 1. Ion Deficiency and Aggressiveness: 2. High Resistivity: 3. Surface Reactions: 4. Impact on Protective Layers: 5. Non-Buffering Nature: Conclusion: Ultrapure water’s corrosive nature is not due to any chemical aggressiveness like that of acids or bases, but […]

Is Ultrapure water corrosive?

Type 1 ultrapure water is so pure that it is actually corrosive to some materials. This is because ultrapure water has an extremely high resistivity (typically 18.2 megohm-cm at 25°C) and lacks any dissolved ions, which means it has a strong tendency to absorb ions and impurities from any material it comes into contact with. […]

Is Type 1 or Type 2 water higher quality?

Short answer, type 1 water is purer than type 2, but there is a lot more to take into consideration before specifying one. As the use of instruments requiring specific qualities of water increases, laboratories are moving away from the traditional Type 1, 2, and 3 specifications and toward a set of guidelines which are […]

Streamlining Water Purity Analysis with Total Organic Carbon (TOC) Analysis Unit

The purity of water is a crucial factor in many different applications, particularly in healthcare. Medical devices and medicines must be wholly safe and effective to use, which means that keeping water free from impurities is essential. To achieve this essential goal, laboratories must adhere to strict rules set by the TGA and CLSI. One […]

Is PP (Polypropylene) or HDPE (High-Density Polyethylene) better for processing DI water?

Both PP (Polypropylene) and HDPE (High-Density Polyethylene) are commonly used for processing DI (Deionized) water, but which one is better depends on the specific application and requirements. PP is known for its excellent chemical resistance and is often used in applications that require high purity, such as laboratory and medical equipment, as well as in […]