Hot line : + 66 2950-2119

Type II Water (Ultrapure water)

Methods of Water Purification

Step 1) Reverse Osmosis

Reverse osmosis is a molecular filtering technique in which water is
pushed through a semipermeable membrane. Organic molecules,
bacteria, other particulate debris, and 90 % to 97% of all ionized
and dissolved minerals are removed by the membrane.

Step 2) Ion Exchange

Ion exchange is a method of removing ions from water to generate
deionized water. Deionization is achieved by resin polymers that
exchange hydrogen (H+) and oxygen hydrogen (OH) ions for the
contaminants present in the ionized state of the water. Cation
exchanger and anion exchanger can produce water with a specific
resistance of more than 10 MΩ/cm.

Step 3) Ultraviolet photo-oxidation

UV photo-oxidation with wavelengths of 254 nm can disrupts the
DNA of live bacteria to reduce microbial content below 1 CFU/L .
In addition, photo-oxidation of organic molecules lowers the total
organic content (TOC) below 50 ppb.

CallQuotationBrochure

ASTM Standards of Type II Water

Measurenent (Unit)
Resistivity (MΩ.cm)> 1
Conductivity (μS/cm)<1
pH at 25 oCN/A
Total Organic Carbon (TOC) (ppb)<50
Sodium (ppb)<5
Chloride (ppb)<5
Silica (ppb)<3

Applications

Version ANA

  • General laboratory applications requiring higher ionic purity
  • Buffer make up
  • Media production
  • Sample dilution and reagent preparation
  • General Chemistry
  • Electrochemistry
  • Flame atomic absorbion spectrophotometer (FAAS)
  • UV-VIS Spectrophotometry
  • Protein Electrophoresis
  • Cytology & Histology
  • Glassware Washing & Rinsing

Acropore Type II Water Specification

Measurenebt
Resistivity (MΩ.cm)> 10
Conductivity (μS/cm)<0.1
pH at 25 oCN/A
Total Organic Carbon (TOC) (ppb)<30
Sodium (ppb)<5
Chloride (ppb)<5
Silica (ppb)<3
Microbial content (CFU/L)<1

Ordering Inforamation

DescriptionPart number
Deionized water, 2L plastic bottleDIW-2
Deionized water, 5L plastic bottleDIW-5
Deionized water, 10L plastic bottleDIW-10