Indigo™ brand test strips for all your sanitizer & disinfection needs. Buy our very high level test strips for chlorine, quat & peroxide for the nasty bugs. Use our Dilution Calculator to make things easy. Don't need the highest levels? We have ones for daycare/assisted living, food preparation and more. Buy quantity & save.
Note that the 200ppm chlorine & 50ppm iodine are paper but other specs apply.
Chlorine and quaternary ammonium sanitizers are by far the most important especially in food preparation. The table below lists their pros & cons.
Hydrogen peroxide is more specialized for things like hot tubs and contact lens cleaners where skin/eye sensitivity can be an issue.
Peracetic acid is popular in greenhouses and plant nurseries.
|Effective on a wide variety of bacteria||Can be corrosive|
|Not affected by hard water||Can be irritating to the skin|
|Generally inexpensive||Deteriorates over time|
|Loses some activity in the presence of organic matter|
|Not affected by hard water||Effectiveness decreases greatly with increase in pH|
|Less irritating to the skin than chlorine||Should not be used in water > 50°C|
|Activity is not lost rapidly in the presence of organic matter||May also discolor equipment and surfaces|
|Nontoxic, odorless, colorless, noncorrosive, nonirritating||Slower at killing some microorganisms|
|Relatively stable in the presence of organic matter||Not compatible with some detergents|
|Active over a wide pH range||Not compatible with hard water|
Let our free Dilution Calculator take the guesswork out of preparing your cleaning solutions. Works with chlorine, iodine, quats, hydrogen peroxide and peracetic acid at any starting and ending concentration & volume needed.