Ensure safe tomato wash water sanitation with 0-300 ppm chlorine test strips to verify chlorine sanitizer levels. This is of concern to tomato growers, packers, HACCP coordinators, & food safety auditors.
Tomatoes require chlorine sanitation due to the high risk of Salmonella & E. coli contamination during harvesting & washing. The recommended levels of free chlorine are in the 50–200 ppm range in dump tanks & flumes. Because the organic load from stems & skins can reduce the amount of free hypochlorite quickly, 200–300 ppm is required for high organic load conditions.
All Indigo® chlorine bleach (sodium hypochlorite) test strips have a 3 year minimum guaranteed shelf life & come with a Certificate of Analysis, Stability & SDS documents listed below; Certificate of Conformance on request. Be prepared for any health & safety audit or inspection.
NDAA Section 889 form available to Government Purchasers upon request.
Food safety requirements aim to develop non-chemical strategies for postharvest disease control. The Integrated Pest Management approach includes plant essential oils which are environmentally safe & appeal to the perceived value-added agricultural and horticultural crops of organic farming.
If you know the slightest bit about metric units & find the instructions below baffling, read: Diluting Chlorine, Peroxide or Quat Sanitizers is Easy. If chlorine ppm calculation formulas are confusing, our chlorine bleach dilution calculator can prepare any concentration of chlorine bleach disinfectant solution for any volume, from spray bottle to bucket to pool size.
Of course, if you can actually make sense of the chlorine dilution formula below, you can safely ignore the suggestions above!
Related information or images
300ppm Chlorine-Food Safety
300ppm Color Chart
Apples
Lettuce
Oranges
Strawberries
Cheese
Hypochlorous Acid
Specifications
Results in 5-10 seconds with readings at 25, 50, 100, 200, 300 ppm for free (available: HOCl & OCl-) chlorine bleach concentration. This strip has a detection limit of 2-3 ppm.
Indigo® test strips have a guaranteed minimum 3 year shelf life but the desiccant lining typically provides 5+ years.
The number of strips (100) per vial is approximate.
Indigo® brand chlorine test strips are Made in USA & tested for accuracy using NIST compliant standards.
Documentation
Chlorine Strip Documentation
Stability Statement
Certificate of Analysis
SDS
Calibration Fluid CoA
Reviews (3)
2020-09-09
The high chlorine test strips are handy for operators to measure Free Chlorine levels to ensure adequate dosages have been achieved when disinfecting watermains and cleaning storage facilities. They arrived very quickly.
— LindaT
— Indigo:
Interesting applications, thanks for the feedback.
2018-03-01
I am glad these are packaged in a container; we have had some in the past packaged in a paper envelope (from another company), which is hard to keep dry. They work just as advertised - the only imperfection for us is that the colors are fairly similar and it can be hard to tell at a glance what the result is. Otherwise, great.
Some of the color charts are indeed harder to read than others. Good lighting can help. Fluorescent lighting is not as contrast friendly as natural sunlight or halogen or quartz.
2017-11-21
These Chlorine test strips are great when you need to measure Free Chlorine levels in water at high levels of concentration.
Interesting applications, thanks for the feedback.