APS TechNotes See all articles

Why do you need pure water in a laboratory?

Why not tap water?
Tap water has far too many contaminants to be used in laboratories or for scientific purposes.  Impurities, elements and compounds in amounts as small as one part per trillion, can influence results in many research experiments.  Heavy metals and dissolved organics, commonly found in tap water, are particularly damaging to life science research.  Some scientific applications such  as High Performance Liquid Chromatography (HPLC) use detector base lines for calibration, and these require ultra pure water completely free of any impurities so that the results are the same in every situation.  The water must especially be free of any elements that are being measured.
Because water purity is so important, several professional organizations have  established water quality standards.  

Some of these influential groups are :

  • American Chemical Society (ACS)
  • American Society for Testing and Materials (ASTM)
  • US Pharmacopeia (USP)
  • National Committee for Clinical Laboratory Standards (NCCLS).  

    NCCLS specifies three types of water--I, II, and III--and water intended for Special Purpose use.

    What are the contaminants?

    Contaminant is any substances you do not want in your water.  These are also called impurities.  Some common contaminants found in water are particulates, dissolved inorganic (solids and gases), dissolved organics, microorganisms, DNA, RNASE and pyrogens.

    How should I purify my water?
    You need to consider your application, the quantity of the water you need for your application and the existing condition of your feed water. If you are performing HPLC, Atomic Absorption, Mass Spectrometry or Gas Chromatographic Analyses, you will probably need a system that uses activated carbon, organic absorption, and deionization technologies.  If you need bacteria-free water, then microporous filtration or  ultrafiltration are better methods for your application. Given this information a water purification system can be matched to your needs. A call to one of our knowledgeable technical representatives may be helpful in deciding which system is the best one for your company.

    More Info :

  • Replacement Filters For Lab Water Systems
  • New Laboratory Water Systems
  • Bottled Lab Water
  • Laboratory Water Distillation
  • Commercial/Residential Distillation Equipment
  • Barnstead EasyPure Selection Guide
  • Certified used and new old stock laboratory water systems.

  • We Offer Over 28,000 Products
    Why do  you need pure water in a laboratory?
    Purchase Orders Accepted
    (subject to approval)
    Credit Application

    Rated "A+" with the BBB
    26 years, Zero Complaints

    Best ...

    Need Help?

    Best New Product
    Quick Twist Reverse Osmosis System

    Quick Twist
    Reverse Osmosis System
    Great for Lab Water Pretreatment
    or Great Drinking Water

    Got Millipore?
    Click Here For Huge Savings

    Shower Filters
    Reduces chlorine
    and other contaminents

    New Feature
    Lab Water Filter Database

    Millipore Filter Quick List
    Barnstead Filter Quick List

    Barnstead Micropure - Why do  you need pure water in a laboratory?
    ... No Description... ... Are You Lost?
    See Your Breadcrumbs
    List All Products

    APS Water Services Corp. 7320 Valjean Ave, Van Nuys, CA. 91406
    800-460-9011 Toll Free | 818-786-0600 Local/International | 818-786-2347 Fax | Public@apswater.com

    Best Best Best Carbon Filter

    Images may or may not be of actual product.

    * 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.

    5/25/2017 at 8:31:17 PM
    Terms and conditions
    Credit Application

    Privacy Policy

    Tags :

    Why do  you need pure water in a laboratory?
    Clack is a registered trademark of Clack corporation

    Barnstead Water Filtration Products
    Laboratory Water Products
    APS Scientific