Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

GFS Chemicals Amco Clear™ Individual Primary Turbidity Standards

Highly accurate, stable and reproducible standards for calibrating turbidimeters and nephelometers.

Manufacturer:  GFS Chemicals 85023

 View more versions of this product

Catalog No. 15-426-2

Add to cart



Primary turbidity standards for use in 90° nephelometers such as the Hach™ 2100A, HF Micro 100, GLI On-line instruments, Hanna Instruments™, HF DRT 100, and Monitek™ Model 21.

  • Ready to use — no mixing or dilution required
  • Consist of polymer microspheres suspended in a pure, aqueous medium
  • Uniform in particle size distribution to ensure consistent light scattering and precise enough to permit calibration down to and including 0 NTU
  • Nontoxic and won't settle out of suspension
  • Guaranteed accuracy within 1%
  • Designed for 90° white light turbidimeters (EPA 180.1 design)
  • Guaranteed one-year shelf life

1For Hach ratio only.

Order Info

In 1L bottles (additional volumes, values and kits are available; contact your Fisher Scientific Customer Service Representative).


The only alternative to formazin formally approved as a primary standard by the U.S. EPA.



Turbidity Standard
For 90° turbidimeters
0.5 NTU
1 Year
33.81 oz.
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit