Tiếng Việt
Used to confirm consistent instrument response. Ready-to-use SpecCheck Secondary Standards Kits include four, 10 mL (1 inch) sealed glass cells with a blank and three different standards within the testing range of 0-2.0 mg/L Cl2, instructions, plastic case and Certificate of Analysis. Vials are filled with gels that simulate the test color at various concentrations. SpecCheck Standards are computer-formulated and have a two-year shelf life from date of manufacture. Hach SpecChecks are non-hazardous and do not require an SDS.
*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
