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Underwriters Laboratories – Certification Activities for Drinking Water Treatment Equipment

Dr. T.N.V.V. RaoUnderwriters Laboratories

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UL Overview

A Leader in Global Conformity Assessment

21 billion UL Marks appeared on products

71,680 manufacturers produced UL certified products

108,745 product evaluations

19,214 product types evaluated by UL

223 million consumers reached with safety messages in the United States and Canada

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UL’s Global Family Is At Your Service

Asia Europe Latin & North America China Czech Republic ArgentinaHong Kong Denmark BrazilIndia Finland CanadaJapan France ChileKorea Germany MexicoMalaysia Italy United StatesSingapore PolandTaiwan Spain

Sweden Switzerland United Kingdom

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UL’s Drinking Water Program

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Drinking Water Program

Drinking Water Product Certification

Bottled Water Certification

Drinking Water Analytical services

Water QualityCheckTM

Comprises four service

lines

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Drinking Water Product Certification

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Drinking Water Product Certification

• ANSI accredited global certification program

• Dedicated team of engineers, chemists and sanitarians all over the world

• Active participation at trade shows, joint committees and industry task groups

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Drinking Water Product Certification

Drinking Water Treatment Units•Drinking water treatment units – aesthetic effects (non health) - NSF/ANSI 42

•Drinking water treatment units – health effects - NSF/ANSI 53

•UV microbiological water treatment systems

- NSF/ANSI 55 •R.O drinking water treatment systems – - NSF/ANSI 58•Residential Water softeners - NSF/ANSI 44

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DWTU Certification Process

The steps involved:• Client requests certification• UL provides quote and requests client authorization• Information acquistion

• Gather information on company and products, which includes a Wetted Parts List• Plant Audit

• A representative from our office staff will visit each manufacturing facility for a preliminary production inspection. Samples are selected at this time.

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DWTU Certificaiton Process (contd.)

Product Testing • Products are tested as per the standard

Results verified to meet standard requirementsLiterature Review• All product literature and packaging will be reviewed

Classification• A report is written and upon successful completion, products will be authorized

to bear the UL mark. Products will be listed on UL’s website.

Follow-up services• UL field rep will make semi-annual unannounced factory visits to monitor

ongoing quality control. Recertification evaluation every 5 years.

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DWTU StandardsWhat does being certified mean?

Material Safety• Product does not impart contaminants into the potable water pathway

• Extraction testing depends on product’s ingredientsStructural Integrity• Cycle testing to simulate operation of product over a projected lifetime

• Hydrostatic testing ensures product design is capable of withstanding intended application

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Drinking Water System Components•Housings, tubing•Valves & gaskets•Tanks & Coatings•Health Effects -NSF/ANSI Standard 61

Drinking Water Treatment Chemical Additives •Disinfectants/antiscalants/dispersants/coagulants•Health Effects - NSF/ANSI Standard 60

Drinking Water Product Certification

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An important credential in your key markets

• Demonstrates compliance to all applicable health-effect standards

• Fully recognized and accepted by the U.S. EPA as well as AHJ’s in the U.S. & Canada

UL’s Water Quality Mark

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Questions & Feedback