Benefits of Using NSF Certified Test Methods Maris Jaunakais

Transcription

1 Denver, CO October 18-20, 2017 Benefits of Using NSF Certified Test Methods Maris Jaunakais Maris Jaunakais is a successful speaker with numerous awards and published works. He has a degree in Chemistry from Lincoln University and a master s degree in Analytical Chemistry from Temple University. His began his career over 40 years ago as a Toxicological Chemist and worked his way to Forensic Science Laboratory Director for the Federal Government. He is currently a consultant with Industrial Test Systems (ITS), a manufacturer of advanced water quality testing in Rock Hill, SC. His leadership has shaped ITS into a global leader. As we enter into the 21st century of water testing, Mr. Jaunakais and Industrial Test Systems continue to introduce revolutionary new products which will shape the way water testing is performed. Abstract This presentation will highlight the benefits of using NSF certified test methods in the pool testing market and how and why to implement them. Mr. Jaunakais will illustrate the importance of having NSF certified test methods available will help with the quality of testing and uniform results. He will also introduce why it is important to have a regular water quality testing schedule and highlight the different NSF test methods and equipment available. National Swimming Pool Foundation conference@nspf.org

2 BENEFITS OF USING NSF CERTIFIED TEST METHODS By Maris Jaunakais, B.A., M.A. WAHC October 19, 2017 TOPIC OVERVIEW Model Aquatic Health Code (MAHC) & Annex NSF/ANSI Standard 50 - WQTD Certified Water Quality Test Devices (WQTD) Benefits of NSF Certified WQTDs Pool/Spa Industry & Health Dept Professionals WQTD Manufacturers Pool Test Results for One Year MODEL AQUATIC HEALTH CODE

3 MODEL AQUATIC HEALTH CODE MAHC - Voluntary guidelines Based on Science Best practices Developed to help public aquatic facilities reduce Risk of disease Injury Drowning Housed on CDC website ( Updated biennially Hosted by Centers for Disease Control & Prevention (CDC) CREATION OF MAHC Major recommendation - held 2005 national workshop Atlanta, Georgia Charged with developing recommendations to reduce pool-associated health outbreaks Members Federal, state, & local public health officials Aquatics sector Academia Open access document - can freely copy, adapt, or fully incorporate MAHC wording 1st Edition MAHC & MAHC Annex released in 2014, 2st Edition 2016 RATIONALE FOR MAHC Disease prevention by proper maintenance, water treatment, & other prevention methods No uniform national guidance about design, construction, operation, & maintenance of public pools/spas & other aquatic facilities Public pool codes developed, reviewed, & approved by state & local public health depts. officials As a result, pool codes vary significantly among local & state agencies State & local jurisdictions expend great deal of time, personnel, & resources creating & updating their individual codes on a periodic basic

4 COUNCIL FOR THE MODEL AQUATIC HEALTH CODE CMAHC 501(c)(3) non-profit organization created 2013 Monitors & responds to public health reports of disease & injury; national input Facilitates MAHC revisions on regular basis by collecting & assessing national input Provides consultation & assistance to health departments, legislatures, & aquatics industry ADVANTAGES OF UNIFORM GUIDANCE Value in uniform, consensus guidance Best possible information Sector acceptance Latest science & best practices Performance-based recommendations ANNEX TO MAHC Scientific & Best Practices Rationale Basis for making MAHC content decisions Discussion of scientific basis for selecting certain criteria Areas where additional research may be needed Explanation of terminology used Additional supporting material including summaries of scientific studies, charts, graphs, or other illustrative materials

5 The picture can't be displayed. ANNEX TO MAHC WATER QUALITY TESTING DEVICE & KITS MAHC guidelines require Water Quality Testing Devices (WQTD) be NSF/ANSI 50 certified WQTD means a product designed to measure the level of a parameter in water. A WQTD includes a device or method to provide a visual indication of a parameter level, & may include one or more reagents & accessory items. WQTDS & kits shall be listed & labeled to NSF/ANSI 50 by an ANSI-accredited certification organization. BASIC POOL/SPA TEST METHODS Digital readers, ph & TDS testers Photometers & reagents Drop Counting Titration Visual Comparator tests Test Strips

6 NSF CERTIFICATION ORGANIZATION NSF (National Sanitation Foundation) is a product testing, inspection & certification organization based in Ann Arbor, Michigan. Certifies MAHC Water Quality Test Devices NSF laboratories are ISO certified (testing & calibration) Performs independent certification of various pool testing methods Stringent approval method NSF/ANSI STANDARD 50 CERTIFICATION NSF/ANSI STANDARD 50 CERTIFICATION PROCESS Manufacturing facility site visit & audit Full evaluation on Two Testing Devices & on 2 Separate Days at two temperatures: 80 ± 2 F (Pool) & 102 ± 2 F (Spa) Accuracy: At each parameter tested the average of WQTD analyses (i.e. 3 readings of each solution) at both temperatures shall meet accuracy requirements (i.e. L1, L2, L3) Repeatability: Average variance in results for each unit of a WQTD shall meet repeatability requirements, based on claimed accuracy level of WQTD Reproducibility (Precision): Difference between average results for each test sample shall meet reproducibility requirements, based on claimed accuracy level of WQTD. Note: Above specifications are subject to change

7 NSF/ANSI STANDARD 50 CERTIFICATION PROCESS NSF 50 ACCURACY SCALE Free & Combined Chlorine CERTIFICATION PROCESS ph TEST SOLUTIONS Temp: 80 ± 2 F & 102 ± 2 F

8 NSF 50 ACCURACY SCALE ph POOL/SPA WQTDs CERTIFIED to NSF/ANSI Industrial Test Systems Inc., Rock Hill, SC (Oct 2016) Smart Photometer Pool exact EZ Photometer Spa exact EZ Photometer Chlorine exact EZ Photometer Well exact EZ Photometer 2. Hach Company - ETS Business Unit, Elkhart, IN (March 2017) DPD Pro Kit: ph Test strip DPD Pro Kit: Free Chlorine Test strip POOL/SPA WQTDs CERTIFIED to NSF/ANSI 50 Industrial Test Systems Inc., Rock Hill, SC Smart & EZ series of Photometers: Free Cl L1 or L2 Accuracy ph L1 or L2 Accuracy Total Bromine L1 Accuracy Cyanuric Acid L2 Accuracy Hach Company - ETS Business Unit, Elkhart, IN DPD Pro Kit: ph Test strip L3 Accuracy DPD Pro Kit: Free Cl Test strip L3 Accuracy

9 Smart & exact EZ Photometers Report Summary of Certification Criteria that dictate the overall rating of a water chemistry parameter of the WQTD under test are highlighted in blue. IDEAL LEVELS FOR POOLS TEST IDEAL LEVELS ph 7.4 to 7.6 (MAHC 7.2 to 7.8) Free Chlorine Cyanuric Acid ppm (Maximum of 10 ppm) 20 to 60 ppm (MAHC max. 90 ppm) Total Alkalinity 80 to 120 ppm (MAHC 60 to 180) Calcium Hardness 200 to 400 ppm (MAHC maximum level is 1000 ppm) Copper/Silver 1.3 ppm/0.10 ppm (from MAHC) Saturation Index -0.5 to +0.5 (salt pools -0.2 to +0.2) Combined Chlorine 0.2 ppm (MAHC action level is 0.4 ppm) BENEFITS OF HAVING NSF CERTIFIED WQTDs Vigorous independent assessment of testing device by independent third party simulating real world conditions On-site audit of company manufacturing facility, including record keeping NSF/ANSI 50 process assesses/reviews WQTD: Accuracy Repeatability Reproducibility (Precision) Operating range Product/Reagent Shelf Life (Expiration Date) Temperature Factor Instructions, maintenance, storage, potential interfering agents

10 BENEFITS OF HAVING NSF CERTIFIED WQTDs Validates company's commitment to high quality standards Demonstrates company's dedication, motivation & technical knowledge in pool/spa testing Distinguishes company s WQTDs from competitors Increases Health Dept confidence & trust for pool/spa water compliance monitoring Expedites regulatory acceptance Reduces potential liability issues BENEFITS OF HAVING NSF CERTIFIED WQTDs Increases confidence that tests are accurate & can minimize chemical use, decrease chemical costs Allows consumers to make apples to apples comparisons between testing devices Improves marketing opportunities in Pool/Spa industry because NSF mark recognition (Some 30 Health Dept entities have or are adopting MAHC) Improves market potential across vertical markets, i.e., food industry, water quality, education market, aquarium industry, etc. NSF 50 CERTIFIED PHOTOMETERS BY INDUSTRIAL TEST SYSTEMS (ITS) exact EZ POOL SPA

11 & exact EZ Photometer Acrylic Verification Key TEST RESULTS OF POOL OVER ONE YEAR TIME PERIOD 9,035 gal Pool located Sarasota, Fl

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14 HN COM-1 TDS/Temp Meter

15 The picture can't be displayed. HN COM-1 TDS/Temp Meter & HM Com1 WHAT MAKES A GOOD TEST? 1. Test is acceptable, compliant, MAHC certified 1. Test is appropriate for staff s technical ability 1. Test is robust, reagents & equipment are reliable & stable in summer heat 1. Test is not affected by interferences 1. Test is accurate when performed correctly

16 CONSIDERATIONS FOR POOLSIDE TESTING Cost (varies $0.03 to over $1.00 per test) Ease of use & time to run test Shelf life of test reagent(s) Accuracy (is result correct?) Precision (is test repeatable?) MAHC POOL TESTING REQUIREMENTS Test every 2 hours for ph, Free Available Chlorine, Combined Chlorine Test daily for Copper & Silver Test weekly for Total Alkalinity & Salt Test monthly for Calcium Hardness & Cyanuric Acid Test quarterly for TDS HELPFUL RESOURCES 2016 Model Aquatic Health Code (MAHC), Code Language, 2 nd Edition, Posted 07/15/2016, Annex to the 2016 Model Aquatic Health Code, SCIENTIFIC RATIONALE, 2 nd Edition, Posted 07/15/2016, NSF International Standard /American National Standard, NSF/ANSI , Equipment for Swimming Pools, Spas, Hot Tubs and Other Recreational Water Facilities NSF Product and Service Listings: NSF/ANSI 50 Certified WQTD, PlantCountry=&PlantRegion=&submit1=Search NSF Recreational Water Program, Component Certification Specification for Flow Measurement or Metering Device (CCS-12485), Internet: Florida Health Dept: Internet: (2016 Ver)

17 QUESTIONS? Maris Jaunakais Consultant