»  Home
»  Products
ø  Standards
»  How to Buy
»  Technical Information
»  Contact Us
placeholder graphic

Providing the Highest Quality Standards and Instruments Available


AMCO Clear® Standards

AMCO Clear® is an EPA approved primary standard for calibration of turbidity sensors that is safe, non-toxic and disposable. It is easy-to-use with no dilution or resuspension, and it is available in a wide range of values. It is NIST traceable to particle size/distribution and optical density, and its inherent stability means it does not settle from suspension. It has a guaranteed one year shelf life even if you've opened the bottle and happened not to have recapped it tightly. The convenient submicron polymer suspensions are non-toxic primary calibration standards approved by the US EPA for drinking water analysis for turbidity, and preferred by the U. S. Geological Survey for turbidity and sediment transport analysis.

See our selection of:


GFS maintains relationships with major instrument manufacturers and stocks the most popular products and accessories. Whether you need instruments, calibration standards, or analytical chemicals for your water laboratory, GFS Chemicals is your one-stop shop for quality products, technical assistance, and friendly, knowledgeable customer service. Our people are our greatest asset and you can count on GFS for all your water testing needs.

To learn more about the instruments we offer, download our product catalog or call 877-534-0795.

Good day!
This is a friendly reminder that as temperatures begin to drop... More >>

ACE 2011 Seed Give Away Information! Everything you need to know is listed here.

Hardiness Zones can be found here

Instructions for planting each type of seed being given away is below:
Chinese Juniper
Colorado Blue Spruce
Eastern Redbud
Quaking Aspen
Sugar Maple
Trident Maple

New EPA Rule in Effect for Water Analysis   More >>

ASTM Committee D19 on Water: Round Robin Participation Award View PDF

Download the latest AMCO Clear Product Catalog
Download Now!

Turbidity Calibration Standards Evaluated from a Different Perspective
More >>

Guidance Manual for Compliance with the Interim Enhanced Surface Water Treatment Rule: Turbidity Provisions
More >>

Selecting Calibration Standards For Optical Instruments
More >>

AMCOClear is a product line of: GFS Chemicals, Inc.