||Need a New Laboratory Water System?
We have many to choose from. We can save you thousands on
Complete Systems and replacement filters for most brands.
ASTM Type I II and III Water Specifications 2010
Everything you need to make lab water
New Lab Water Systems
Replacement filters for all brands of existing lab water system
| Type I||Type II||Type III||Type IV|
|Electrical conductivity, max, S/cm||0.056||1.0||0.25||5.0|
|Electrical resistivity, min||18||1.0||4.0||0.2|
|pH||*||*||*|| 5.0 to 8.0|
|Total organic carbon (TOC), max, g/L||50||50||200||no limit|
|Sodium, max, g/L||1||5||10|| 50|
|Chlorides, max, g/L||1||5||10|| 50|
|Total silica, max, g/L||3|| 3||500||no limit|
When bacteria levels need to be controlled, reagent grade types should be further classified as follows:
|Type A|| Type B||Type C|
|Maximum heterotrophic bacteria count||10/1000 mL||10/100 mL||100/10 mL|
|Endotoxin, EU/mlB|| 0.03||0.25||not applicable|
*pH is not a significant indicator when comparing ionic contamination.
Also See :
Measuring pH of pure water
NCCLS and CAP Water Specs
Images are representative of the products. Images may or may not be of the actual product. If it is important e-mail us for an actual image if available.
* Flat Rate UPS shipping when able to ship via UPS and is in the USA excluding Hawaii and Alaska.
Larger Items may not be able to ship via UPS, in that case freight charges will be quoted seperately.
International shipping will be quoted after the order is placed. You will have the opportunity to cancel before we finalize your order.
Terms and conditions
List All Products