Screen Drinking Water for EPA 539 Hormones Using a Calibration Standard Specially Formulated for UCMR3

The Unregulated Contaminant Monitoring Rule 3 (UCMR3) requires monitoring of all public drinking water systems with 10,000 or more customers. For hormone screening in finished drinking water, UCMR3 lists the same seven compounds as EPA Method 539; however, the concentrations differ between the two lists.

A new certified reference material (CRM) released by Restek contains the seven hormones listed in EPA Method 539 conveniently formulated to the concentrations outlined by UCMR3 to save analysts time and labor. For those following EPA 539 guidelines, Restek also offers the same mix of hormones with the appropriate concentrations.

Compound List for Restek's EPA Method 539 CRMs

Of course, like all Restek CRMs, these standards are both manufactured and QC-tested in an ISO-accredited lab to easily satisfy ISO requirements.

www.restek.com/539-standards

Analyze a Full EPA 524.3 List Using Just Three Ampuls With New Restek EPA 524.3 Certified Reference Materials!

In support of the U.S. Safe Drinking Water Act (SDWA), Restek has formulated a complete set of EPA 524.3 reference standards for the monitoring of purgeable organic compounds in drinking water—using as few as three ampuls! This collection of certified reference materials (CRMs) also covers the seven volatile organic compounds (VOCs) included in the Unregulated Contaminant Monitoring Rule 3 (UCMR3), which requires monitoring of all public drinking water systems with 10,000 or more customers. It is also ideal for surface water and groundwater testing inside or outside the U.S.

This new set of reference standards offers a full 82-component EPA 524.3 list using as few as three ampuls to reduce prep time and chances for error or contamination. The EPA 524.3 VOA MegaMix® ampul includes the required oxygenates group for convenient ordering, while the volatile gases are prepared separately to allow replacement of shorter-life components without wasting money on the full list. Internal and surrogate standards are available independently or as a combined mix, letting analysts choose the option that works best for them. Of course, like all Restek certified reference materials (CRMs), they are manufactured and QC-tested in an ISO-accredited lab to easily satisfy ISO requirements.

Simplify your EPA 524.3 analyses and start saving today with Restek’s new reference standards set.
www.restek.com/524.3-standards