SpecCheck Secondary Gel Colour Standards Set MR DPD Chlorine

• Use with Hach Colorimeters and Spectrophotometers
• Solid Gel Standards - No preparation required
• Ideal for instrument verification in the lab and in the field
• NIST traceable

Ready to use SpecCheck Secondary Standards Kits include four 10ml (1 inch) sealed glass cells with a blank and three different standards within the typical testing range, instructions, protective plastic case and Certificate of Analysis.