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Custom Reference Standards

Contract Laboratory Program (CLP)

Standardize Your Standards

Explore EPA Contract Laboratory Program reference standards for metals, pesticides, volatiles, semi-volatiles, sample spikes, calibration, and laboratory QC. Choose method-specific solutions for reliable calibration and routine environmental laboratory QC.

We also offer custom standards to reduce workload and increase efficiency in laboratories.

Enroll in our AssuredSupply Lab Supply Program and relax in the knowledge that you'll never run out of your critical standards or lab supplies again!


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Contract Laboratory Program (CLP) Instrument Calibration Standard #5
As 100, Se 50, Cd 50, Tl0, Pb 50 in 5% HNO3.
Available in 100 mL and 500 mL volumes.
0.0 USD
QC/ICV Solution for 6020 CLP-M
Item No.: 4400-010045
10 µg/mL Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sb, Tl, Zn in 2% HNO3.
314.00 314.0 USD
Control Laboratory Program (CLP) Soil Spike Standard, HNO3, 100 mL
Item No.: 4400-010088
See Product Description for full details.
344.00 344.0 USD
Interferance Check Verification Mix Standard, HNO3, 500 mL
Item No.: 4400-ICV1
See Product Description for full details.
891.00 891.0 USD
CLP Spike for GFAA, 5% HNO3, 250mL
Item No.: 4400-GFAA-SPIKE
123.00 123.0 USD
157.00 157.0 USD