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Introducing the Polaris Lab Water Systems
High Purity Water Made In The USA.
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Laboratory Water Systems Laboratory Process Filters Laboratory Equipment Water Treatment
APS TechNotes See all articles

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 IType IIType IIIType IV
Electrical conductivity, max, S/cm0.0561.00.255.0
Electrical resistivity, min181.04.00.2
pH*** 5.0 to 8.0
Total organic carbon (TOC), max, g/L5050200no limit
Sodium, max, g/L1510 50
Chlorides, max, g/L1510 50
Total silica, max, g/L3 3500no limit

Bacterial contamination

When bacteria levels need to be controlled, reagent grade types should be further classified as follows:

Type A Type BType C
Maximum heterotrophic bacteria count10/1000 mL10/100 mL100/10 mL
Endotoxin, EU/mlB 0.030.25not applicable


*pH is not a significant indicator when comparing ionic contamination.

Also See :
  • Measuring pH of pure water
  • NCCLS and CAP Water Specs



    ATSM Specs

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    Short Lead times.
    Lab Water Deionizer




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    APS Polaris D2 Water System with Quality Meter
    APS Polaris D2 Water System with Quality Meter

    This dual housing is designed to provide 1 g.p.m. of ultrapure water exceeding ASTM and CAP Type II specifications.  

    Comparable to Barnstead D4521

    Operating Manual

    See all Polaris Systems Here


    PROUDLY MADE IN THE USA

    Dimensions :  18" W X 28" H X 6" D

    US$2,570.25 Details
    APS Polaris D3 Water System with Quality Meter
    APS Polaris D3 Water System with Quality Meter

    This high capacity triple housing is designed to provide 1 g.p.m. of ultrapure water exceeding ASTM and CAP Type II specifications.  

    Operating Manual

    See all Polaris Systems Here


    PROUDLY MADE IN THE USA

    Dimensions : 23" W X 28" H X 6" D

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    APS Polaris D1 Water System with Quality Meter
    APS Polaris D1 Water System with Quality Meter

    This compact single housing is designed to provide 1 g.p.m. of ultrapure water exceeding ASTM and CAP Type II specifications.  

    Comparable to Barnstead D4511

    See all Polaris Systems Here


    PROUDLY MADE IN THE USA

    Dimensions : 12" W X 28" H X 6" D

    Operating Manual

    US$1,761.72 Details
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