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positive and negative control for coliform analysis
0 mg/L As³⁺ ⁵⁺
Leveling: Manual
2-Aminopyrene
The most common solubility problems exist with arsenate
Total Chlorine Accuracy Check Standard - 2.5mg/L, #QCI-117 100050-4-100 positive and negative control forAs easy as it gets. To use, dilute contents of tube directly into 25mL cuvette, bring to volume and reagent. Certified for total and free chlorine. Yields a 2. 50ppm chlorine working standard. 25 tubes per pack. Technical Data Product Description Yield 2. 5mg L Tubes per pack 25 Total Chlorine Accuracy Check; 25 tubes per pack, dilute contents to 25mL yields a 2. 5mg L sample.
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