Fresh produce goes through an intricate process of being washed to eliminate the presence of contaminating pathogens that could lead to food-borne illness. Among available sanitizers, chlorine is the most widely used in the fresh produce industry due to its low cost, ease of use, and effectiveness against vegetative bacteria some enteric viruses. Following harvest, produce is washed in what many call “chlorine baths.”
Free chlorine concentrations are added and maintained in large pools of water or “wash water” at levels where no pathogens can be detected. Maintaining needed levels of free chlorine for the sanitization is challenging and requires constant testing with free and total chlorine meters. QA Supplies provides a variety of free chlorine and total chlorine meters alongside replacement glass cuvettes and free chlorine reagents for continual testing.
The HI96701 photometer measures the free chlorine (Cl2) content of water samples in the 0 to 5 (ppm) range. The meter is waterproof, and the measuring system is protected from dust or dirt. The unit has a locking system to ensure that the sample cuvette is in the same place every time and a with the exclusive Cal Check function, users can verify the performance of the instrument at any time.
The HI96711 photometer is waterproof and measures Free and Total Chlorine (Cl2) content in water and wastewater ranges 0-5 ppm. Users can verify the performance of the instrument at any time with an exclusive Cal Check function that is EPA compliant. Just use the Hanna ready-made, NIST traceable standards to verify the performance of the instrument and recalibrate if necessary.
The HI96734 photometer allows you to measure free and total chlorine levels and is ideal for field applications with a measurement range of 0-10 ppm. The EPA compliant Cal Check system for user validation and calibration within the device allows users to verify the performance of the instrument at any time. Just use the Hanna ready-made, NIST traceable standards to verify the performance of the instrument and recalibrate if necessary.
HI97771 Free and Total (Ultra High Range) Chlorine Photometer is a dependable photometer that measures free chlorine in water samples from 0.00 to 5.00 mg/L (ppm) and total chlorine from 0 to 500 mg/L (ppm). This chlorine photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user making it the perfect photometer for your water quality testing needs.