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Drinking Water Treatment Unit Validation Studies   
Introduction
Capabilities
Sample Report (under revision)
Technical Document (under revision)

  

Introduction

Independent third party testing and consulting

Analytical Services, Inc., performs a wide variety of challenge studies in our in-house device testing and EPA/ICR approved laboratory facilities. Typically our challenge studies involve the injection of one or more contaminants/organisms into the influent of the test system. We collect and analyze a calibrated sidestream influent sample to determine the exact challenge dose being applied to the device. Depending on the system flow rate, we sample a fraction or all of the effluent. Then we process influent and effluent samples using the same analytical procedure. Finally, we calculate the contaminant removal/inactivation values to quantify the performance of the unit. We work with you to develop a testing program that meets your specific needs.

Product Validation

Strengthen your marketing efforts with data that substantiate your product performance claims. Our independent third party challenge studies provide data that can help you increase your market share and create consumer confidence.

Performance Optimization

Do you want to improve the performance of your product? Our diagnostic testing and failure analysis services provide the information you need to make changes that improve the removal/inactivation efficiency of your device.

Design Consultation

Our microbiology staff will work with your R&D group on material selection and product development. Our experience will help ensure that your product design meets your application and performance goals.

Data Quality

Our scientific approach, professional staff and in-house device testing and laboratory facilities allow us to design and conduct challenge studies that meet your specific testing objectives and provide you with data of consistently high quality.

PRODUCTS TESTED

Filters Disinfectants
  • Microfilters
  • Ultrafilters
  • Nanofilters
  • R/O filters
  • Flat sheet media
  • Bag filters
  • Sand filters
  • Ultraviolet (UV) light units
  • Chemical disinfectants
  • Electrotechnologies
  • Other

CONTAMINANTS USED

Biological Non-Biological
  • Cryptosporidium (live or inactivated)
  • Giardia (live or inactivated)
  • Viruses
  • Bacteria
  • Fungi/Yeasts
  • Latex spheres
  • Test dust
  • Other

PROTOCOLS AVAILABLE

Challenge Studies Analytical Techniques
  • HIMA
  • NSF
  • USEPA
  • Client protocols
  • Customized/proprietary protocols
  • Other

 

  • Cell culture
  • Excystation
  • IFA counts
  • Laser particle counts
  • PFU assay
  • Plate counts
  • SEM/EDS
  • Other

REPORT FORMAT

Introduction Methods
  • Objectives
  • Study design
  • Protocols
  • Analytical techniques
Results Conclusion
  • Influent and effluent sample data
  • Removal/inactivation values
  • Data interpretation

STANDARD TESTING LEVELS

Filters

  • Level I
    Particle Challenge / Single Filter

    Particle challenges offer quick, inexpensive evaluations of product performance. We routinely perform these studies on flat sheet media, prototype units, or existing products down to 0.5 µm.

  • Level II
    Multiple Contaminants / Single Filter

    Document the removal efficiency of your filter using one or more contaminants under a single set of operating conditions. This level of investigation is particularly useful when you wish to acquire additional market share or bring new products into the market.

  • Level III
    Multiple Contaminants / Multiple Filters
    These in-depth studies allow you to evaluate the efficiency of your filter using multiple types of contaminants and/or multiple test conditions. In addition, the testing of multiple filters allows you to assess performance variability within or between production lots.

UV Lights/Disinfectants

  • Level I
    Single Organism Type / Single Device

    This type of challenge study provides an entry level investigation of product performance. For example, static or short duration flow-through tests can be performed on a UV lamp to gather basic performance data.

  • Level II
    Multiple Organism Types / Single Device

    These challenge studies are conducted at the manufacturer’s design capacity and involve challenging a single device with two or more contaminants under a single set of test conditions.

  • Level III
    Multiple Organism Types / Multiple Devices

    These in-depth studies allow you to evaluate the inactivation efficiency of your device using multiple types of organisms under more than one set of test conditions. Testing multiple devices allows you to assess performance variability within or between production lots.

Challenge studies involve many variables including the number and type of contaminants, number of units challenged, flow rate, duration, and inlet and differential pressure. We work with you to develop a testing program that meets your specific needs

   

P.O. Box 515 (mailing)
130 Allen Brook Lane (shipping)
Williston, VT 05495 USA
Toll Free: 800-723-4432

Local: 802-878-5138
Fax: 802-878-6765
pwarden@analyticalservices.com

Copyright © 2006
Analytical Services, Inc.

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