Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine - HR 0-6.5 mg/L Cl₂, Chlorine Testing, Water Quality Standards, Accurate Chlorine Measurement, Laboratory Grade Chlorine Standards, 2893300

Hach 2893300 SpecCheck Secondary Gel Standards Set, DPD Chlorine - HR

• 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 0-6.5 mg/L Cl₂ (High Range), instructions, plastic case and Certificate of Analysis.
• Used to confirm consistent instrument response.
• 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.