High Range Sodium Hypochlorite Test Strips

SKU: 33815-10K

$27.95USD or lower Each

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Quantity1+2+ 3+ 10+ 100+ 
Price for each$27.95USD$27.43USD$26.91USD$25.35USD$23.95USD
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[5]   5 Reviews    | Write a Review

Buy Indigo® 10000ppm high level chlorine test strips to ensure enough available sodium hypochlorite for disinfection. Spend less-buy 3 packs of 100 strips & beat their "free" shipping. Now that's bang for the buck! Backed by our 3 year minimum guaranteed shelf life.

Full documentation including Certificate of Analysis, Stability & SDS are available below; Certificate of Conformance on request. Be prepared for any health audit or long term care home safety inspection.

NDAA Section 889 form available to Government Purchasers upon request.

Effective for coronavirus, norovirus & drug resistant strains of bacteria such as MRSA. These strips are well suited for use in places as diverse as hospitals to hair salons. Use also in conjunction with tomato wash water testing.


Chlorine bound by organic contamination (blood/feces) seriously reduces the effectiveness of bleach disinfectant solutions. You may need 1000ppm minimum to ensure adequate disinfection, so start with a higher initial concentrations, up to 10,000ppm (1%). Indigo® extra high level 5000-10000 ppm test strips will confirm your surface disinfectant spray is effective in the presence of binding organics.

Chlorine bleach at these high concentrations is an effective germicide for dangerous viral & bacterial pathogens such as MRSA (methicillin resistant Staphylococcus aureus) staph infections & Clostridium difficile, found ever more frequently in hospitals and other health care facilities.

Having trouble trying to calculate how to prepare a 1000, 2500, 5000, 10,000 (or other) ppm chlorine solution for surface disinfection? Use our chlorine dilution calculator to take out the guesswork or watch the video:

Related information or images
Results in 30 seconds with readings at 1000-2500-5000-10000 ppm for free (available) chlorine bleach concentration.
  • Indigo® chlorine test strip dessicant lined vials guarantee a minimum 3 year shelf life but if unopened, 5+ years can be expected.
  • For technical explanation, read: Sanitizer Test Strip Expiration; Good Today, Dead Tomorrow?
  • These strips measure free (available) chlorine
  • The number of strips (100) per vial is approximate.

Test Strip Documentation

Stability Statement Certificate of Analysis SDS Calibration Fluid CoA
Indigo Chlorine 10000ppm Test Strip Stability Statement Indigo Chlorine 10000ppm Test Strip Certificate of Analysis Indigo Chlorine 10000ppm Test Strip SDS Calibration Fluid Certificate of Analysis

Indigo® brand chlorine test strips are Made in USA & tested for accuracy using NIST compliant standards.

Reviews (5)
Great product and we use it daily to test our bleach solution. Working with Indigo Instruments was easy and our order arrived by the promised date even though we are in Hawaii.
— Kristi
Order was easy and delivery was quick. Great product. Will order from them again.
— Debb Gagen
Great service and excellent prices. Very fast delivery also
— Shirley
Great product worked as expected. These strips were a great help to us and Indigo Instruments has been great to work with. Thanks!
— Steve
— Indigo: Glad we could help Steve. Thank you for review.
Good product. Will definitely order again.
— Gus
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