AMCO Clear Water Standards

GFS has moved into the world of submicron polymer technology by acquiring the calibration standards line originally developed APS Analytical Standards, Inc. (Redwood City, CA) over the last twenty years. The value of these standards lies in their potential utility in almost every type of optical or visual calibration process. Key applications involve instruments that operate on the principles of light scattering, transmittance or absorbance, including turbidimeters, nephelometers, colorimeters, spectrophotometers, and clinical analyzers. To date, the primary application has been in the calibration of municipal water purification facilities as required by the 1976 Safe Drinking Water Act.

Amco Clear® has several advantages over formazin-based standards. A typical (mean) particle diameter of 0.121 micron ensures consistent light scattering characteristics, and provides the advantage of a permanent suspension. The new GFS turbidity standards are significantly more stable and, unlike formazin-based standards, can be used for calibration under one nephelometric unit (NTU). This is important because the EPA requires turbidity values not to exceed 0.3 NTU for surface source drinking water. GFS maintains the strictest standards of ISO-9000 conformance.

Products Now Available Online!

AMCO Clear is sold through the GFSChemcials.com Web site. Please visit the Amco Clear section of the online catalog to browse the products available.

Our EPA approved Primary Standards are:

• Safe, non-toxic and disposable
• Easy-to-use/No dilutions or preparations
• Accurate to 1% lot-to-lot
• Available in a wide range of values
• Stable/does not settle out of suspension
• Guaranteed One Year Shelf Life
• N.I.S.T. Traceable

AMCO Clear standards are certified for use in turbidimeters and haze meters by the following regulatory bodies:

• EPA Federal Registry, Vol. 47, #42, March 3, 1982 to present
• Standard Methods of Water & Wastewater, APHA-AWWA-WPOCF, 16th, 17th, 18th & 19th Edition to present
• ASTM, D1889-88a, June 24, 1989 to present
• ASBC - American Society Brewing Chemists 1986 to present
• Analytica - EBC, 4th Edition, 1987 to present