Trubidity Standards
AMCO Clear® Turbidity Standards are recognized by the US EPA as a Primary Standard for the calibration of turbidity meters used both online and in the laboratory for the analysis of drinking water.
 Our AMCO Clear Turbidity Standards are traceable to N.I.S.T. Primary Standards due to their consistent particle size and photometric accuracy via UV-VIS spectroscopy. Each lot is normalized to historical lots which were formulated to dilutions of ISO 17034 4000 NTU Formazin. Use the AMCO Product search below to match your instrument and model to the correct standard for your application.
AMCO Clear Turbidity Standards
800-838-5567
Features
- Safe, non-toxic and disposable
- Requires no mixing or inverting
- Easy-to-use/ no dilutions or preparations
- Stable - does not settle out of suspension
- Accurate to 1% lot-to-lot
- Guaranteed one-year shelf life from date of shipment
- Available in a wide range of values
- N.I.S.T. traceable
- EPA method 180.1 approved
- ISO 17025 accredited
- Custom standards available
Learn More
AMCO Clear
Turbidity Standard Kits
Primary Standard Turbidity Meter Calibration KitsÂ
Include 250 mL bottles of each NTU value at the manufacturer's suggested calibration points.
Secondary Standard Turbidity Meter KitsÂ
Include sealed vials of the NTU values at the manufacturer's suggested calibration points.
Deluxe Turbidity Standard KitsÂ
Containing the 250 mL bottles of primary standards and the corresponding sealed secondary standards at the manufacturer's suggested calibration points. This will also include a new sample vial.
Linear Calibration Standard KitsÂ
Containing 125 mL bottles of primary standard in the range of your application, 0-1, 0-10, and 0-100 NTU ranges include 6 bottles at 0%, 20%, 40%, 60%, 80% and 100% of the range of interest. Directions and graph paper are included upon request.
Individual Turbidity Kits
Primary StandardsÂ
Available in 125, 250, 500 mL, 1 L, and 1 Gallon bottles, and are instrument specific, formulated to match Formazin dilutions.
Secondary StandardsÂ
Primary standard suspensions are contained in a sealed vial/bottle and used for daily instrument calibration verification.
Best SellerÂ
A low-level check standard to verify instrument calibration in the drinking water range of interest.
Reference Information
HF Scientific Reference Items
AMCO turbidity standards are instrument specific. Find the Right AMCO product to match the HF Scientific instrument you have by clicking here and downloading our brochure.
HACH Reference Materials
Hach turbidity meters are common instruments in any lab. If you are looking for an alternative product, download our new brochure to help you find the correct item for your application and instrument.
LaMotte Reference Materials
Using a LaMotte instrument and searching for the correct turbidity standard? Try GFS Chemicals AMCO Clear as your go-to option with our superior quality and competitive pricing.
Turbidity Standards
AMCO CLEAR
GFS Chemicals AMCO CLEAR ®
AMCO Clear® Turbidity Standards are recognized by the U.S. EPA as a primary standard for calibrating turbidity meters used in both online and laboratory drinking water analysis. These standards are traceable to NIST primary references through tightly controlled particle size distribution and verified photometric accuracy using UV-VIS spectroscopy. Each production lot is normalized to historical reference lots originally formulated from ISO 17034 4000 NTU Formazin dilutions.
Browse the AMCO categories below to match your specific instrument and model with the correct standard for your application.
Simplify your workflow with safe, non-toxic disposable standards designed for immediate use—no mixing, inverting, or preparation needed. Engineered for stability and ±1% lot-to-lot accuracy, every standard is NIST traceable, EPA Method 180.1 approved, and produced under ISO 17025 accreditation.
Read more about AMCO Clear from GFS Chemicals and see how industry-recognized turbidity standards can strengthen your testing workflow. From dependable calibration to regulatory confidence and long-term consistency, AMCO Clear is designed to help your company achieve reliable water quality results with ease.
Turbidity Brochures