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Home My WebLink AboutAP_OPTIFLUX 2000__en_Hardrubber BKM HR 1081 DVGW W270_080215__ Hygiene-Institut des Ruhrgebiets Institut fir Umwelthygiene and Umweltmedizin 7 Dlrektor: Prof. Dr. rer. nat. L. Dunemann Hygiene InsUlut Postfach 10 12 55 45812 Gelsenkirchen Rotthauser Sir. 19 Klwa N.V. 45879 Gelsenkirchen Sir W. Churchill-laan 273 Phone (0209)9242.230 Postfach 70 Fax (0209)9242-222 E-Mail c.schell@hyg.de 2280 AB RIJSWIJK ZH Internet www.hyg.de NIEDERLANDE Our reference: W-166474ek-08-SI Responsible: Frau Dr.Ch.Schell Gelsenkirchen,08.08.2008 TEST REPORT Enhancement of Microbial Growth on Materials to Come into Contact with Drinking Water pursuant to DVGW Technical Standard W 270, November 2007 Submitter: Kiwa N.V. Sir W. Churchill-laan 273 Postfach 70 2280 AB RIJSWIJK ZH NIEDERLANDE Client: Krohne—Altometer Kerkeplaat 12 3313 LC DORDRECHT NIEDERLANDE Ordering date: 12.02.2008 Description of the material: Test material: Hard Rubber BKM-HR-1081 Composition: recipe forwarded to the contractor(KIWA) Regulations of application: for specifications, consult the client Intended use: for specifications, consult the client Quantity of material per surface unit: for specifications, consult the client Test samples: Nature and property: 9 plates of hard plastics, black, 20 cm x 20 cm Manufacturing: carried out by the client(description submitted) Conditions of application: carried out by the client(description submitted) Date of receipt of test samples: 15.02.2008 Storing conditions in the testing laboratory until start of test: at room temperature This test report contains 3 pages peY1eC�ef Akkreddie rung• The test results and assessments refer exclusively to the examined test specimens and the existing regulations The present test report is valid on condition that Re` n the composition of the material as well as the conditions of application remain unaltered This present document may only be published and reproduced unabridged and unaltered. DAP-PL-2548.015 Trager des Hygiene-Instituts:Verein zur Bekampfung der Volkskrankheiten inn Ruhrkohlengehiet e.V,Gelsenkirchen Hygiene-Institut des Ruhrgebiets W-I66474ek-08-SI Institut fur Umwelthygiene and Umweltmedizin Seite 2 von 3 Test conditions: The tests were performed in accordance with the recommendations contained in DVGW Techni- cal Standard W 270 as of November 2007. Detailed information on the mode of experimental procedure as well as the test conditions will be given in said Technical Standard. The surface of the examined test pieces totals to 800 cm2 each. Using 16 test items per test period the following test scheme was used: ➢ monthly sampling of surface biomass (test period 3 months altogether) ➢ sampling after 2 months (test period 2 months altogether) ➢ sampling after 3 months (test period 3 months altogether) The test specimens were placed into running tap water for 20 hours, disinfected by means of 1% chlorine bleaching for (30 ± 5 min) and rinsed once more with drinking water, before the expo- sure was carried out. Time of exposure: 1-month samples 1 a: 1 St test period from 29.04.2008 to 26.05.2008 1 b: 2"d test period from 26.05.2008 to 25.06.2008 1 c: 3rd test period from 25.06.2008 to 27.07.2008 2-month samples 2a: 1 St test period from 29.04.2008 to 25.06.2008 3-month samples 3a: 1 St test period from 29.04.2008 to 27.07.2008 The exposition was carried out in containers with ground water of drinking water quality at a con- tinuous flow rate of approx. 20 I/h over a period of three months. The temperature range of the water was 11.00C and 12.6°C After one, two and three months the test pieces as well as the corresponding negative reference samples (stainless steel) and the positive reference samples (paraffin) were scraped off to ana- lyse the formation of biofilm. The surface biomass was then transferred to suitable glassware. The following centrifugation was carried out at 3.000 x g for 10 minutes and the volume of the sedimented surface biomass determined. Test results: The positive refence sample (paraffin) showed a pronounced formation of biofilm during all test periods (limiting value: >_ 1.5 ml / 800 cm2). There was no formation of surface biomass on the negative reference sample (limiting value: < 0.01 ml /800 cm2). Hygiene-Institut des Ruhrgebiets V I 66474ek-08-SI Institut fur Umwelthygiene and Umweltmedizin Seite 3 von 3 The results of the analyses of the specimens of 800 cm2 surface in total, pursuant to DVGW Technical Standard W 270 were as follows: Volumen of surface biomass (single values and arithmetic mean of two test pieces, given in ml / referring to 800 cm2) Start of test: 1-month values 2-month values 3-month values 29.04.2008 29.04.08 - 26.05.08 la < 0.01 / < 0.01 < 0.01 < 0.01 /< 0.01 2a 26.05.08 - 25.06.08 lb < 0.01 / < 0.01 < 0.01 3a 0.01 /< 0.01 < 0.01 0.01 25.06.08 - 27.07.08 1 c 0.01 / 0.01 0.01 Limiting values [ml/800 cm2] General application: arithmetic means <_(0.05 + 0.02) _< (0.05 + 0.02) _<(0.05 + 0.02) Large surface seals (D 1): arithmetic means <(0.12 +0.03) s(0.12 + 0.03) <_(0.12 +0.03) Small surface seals (D 2): arithmetic means <(0.20 + 0.03) s(0.20 + 0.03) _<(0.20 +0.03) Assessment: Provided that it is applied correctly the material Hard Rubber BKM-HR-1081 is suitable for use in drinking water systems according to the results of the microbiological ex- aminations pursuant to DVGW Technical Standard W 270 (11/2007). Director of the Institute on behalf I (Dr. Ch. Schell) (Department Water Hygiene and Environmental Microbiology) Hygiene-Institut des Ruhrgebiets Institut fur Umwelthygiene and Umweltmedizin Bq7 Dlrektor: Prof. Or. Ter. nat. L. Ounemann Hygiene-Institut Postfach 10 12 55 45812 Gelsenkirchen Rotthauser Str. 19 Kiwa N.V. 45879 Gelsenkirchen Sir W. Churchill-laan 273 Phone (0209)9242.230 Postfach 70 Fax (0209)9242 222 E-Mail c.schell@hyg.de 2280 AB RIJSWIJK ZH Internet www.hyg.de NIEDERLANDE Reference: W166474ek-08-SI Responsible: Frau Dr.Ch.Schell Gelsenkirchen,08.08.2008 TEST CERTIFICATE Enhancement of Microbial Growth on Materials to Come into Contact with Drinking water pursuant to DVGW Technical Standard, November 2007 Submitter: Kiwa N.V. Sir W. Churchill-laan 273 Postfach 70 2280 AB RIJSWIJK ZH NIEDERLANDE Client: Krohne—Altometer Kerkeplaat 12 3313 LC DORDRECHT NIEDERLANDE Test material: Hard Rubber BKM-HR-1081 Test method: Material test According to test report W-166474e-08-SI from 08.08.2008, the afore mentioned material Hard Rubber BKM-HR-1081 is conform to the requirements for the use in the area of drinking water systems pursuant to DVGW Technical Standard W 270. The test results are itemized in the test report. This test certificate shall become valid upon date of issue and shall expire on 08.08.2013 provided that conditions and requirements remain unaltered. Upon these conditions the validity may be extended on application up to another 5 years term. Director of the Institute On be11h11a``ll1f 11 (Dr. Ch. Schell) (Department Water Hygiene and Environmental Microbiology) D•utccn•r The test results and assessments refer exclusively to the examined test specimens and the edisting regulations n kr•aa.•r e The validity of this document expires in case of modifications in the composition of the-material or the processing conditions. Rw The present document may only be published and reproduced unabridged and unaltered G 0 This document is no DVGW-certification. DAP-PL-2548.O0 Trager des Hygiene-Instituts:Verein zur Bekampfung der Volkskrankheiten im Ruhrkohlengebiet e.V,Gelsenkirchen