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![]() 1-500ug/L (Lead in water) ![]() 가정용 수도, 학교 과학 실험실, 환경 조사 기관, 산업체 품질 관리 ![]() 빠르고 쉬운 납 농도 검사 휴대 가능하고 사용이 간편함 높은 정확성과 반복성 제공 실험실 수준의 결과를 현장에서 즉시 확인 가능
About your Water Sample If the water sample you are testing has a pH of 6.5 to 8.5, then the LEADQuick™ Reagent System will give valid results. If your water sample is below pH 6.5 or above pH 8.5, or has a Total Alkalinity above 200 PPM; then the pH of the water needs to be adjusted to between pH 7 and 8 before testing begins. Use 1.0N HCl or 1.0N NaOH to adjust the pH of your water sample. Iron above 0.1 ppm can be present in well water samples. It is recommended that the absence of iron be confirmed by the Iron Check Test (part number 480025). If your results are different from what you expect, then after the test is completed, check the pH of the reacted sample. The chemistry, to work properly, should have a final pH of 9.0 to 10.0. If your pH is below 9.0, then add six drops of PB-2 in step 5. If pH is above 10.0, then add four drops of PB-2 in step 5.
Kit Specifications: The test detects from 0 to 500 μg/L or ppb levels of Lead as Pb2+. The most accurate test range will be 3 to 200 μg/L. For this range, the Test resolution is 1 ppb, minimum detection is 3 μg/L, and accuracy is +/-3 μg/L or +/-6% (whichever is higher), when used with an eXact® LEADQuick™ Colorimeter. If lead level is above 500 μg/L (ppb), dilute sample with lead-free water before retesting. The MCL (Maximum Contaminant Levels allowed) for drinking water as set by the USEPA for Pb2+ is 15 μg/L (WHO is 10 μg/L); Mercury (Hg+2) is 2 μg/L; and Cadmium (Cd+2) is 5 μg/L.
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