Hanna Free and Total Chlorine CAL Check Standards for HI97701/water testing HI97701-11

The HI97701-11 Free and Total Chlorine CAL Check Standards are certified calibration/validation solutions for use with the HI97701 portable photometer for free and total chlorine. The set contains two sealed cuvettes (A for zeroing and B with a certified standard) and is supplied with a Certificate of Analysis listing lot number, reference value and expiration date for traceability. The standards are produced under controlled conditions, packaged in light‑tight containers, and intended to validate the HI97701 photometer over the 0.00 to 5.00 mg/L (ppm) chlorine range.

Key Features:

• Designed for HI97701 portable photometer (free and total chlorine)
• Validates measurement range: 0.00 to 5.00 mg/L (ppm)
• Standard B value: 1.00 ± 0.03 mg/L chlorine at 25°C
• Includes two sealed cuvettes: A (zero) and B (standard)
• Supplied with Certificate of Analysis (lot number, reference value, expiration date)
• Packaged in light‑tight storage containers; reusable with long shelf life

Advantages:

• Provides an easy, manufacturer‑supported method to calibrate and validate photometer performance using certified standards
• Certificate of Analysis enables traceability and documentation for quality control
• Sealed, light‑tight cuvettes protect standards from contamination and accidental breakage, extending shelf life
• Reusable standards reduce the need for frequent reagent preparation and simplify routine verification