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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.

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2026 Variant Price List
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Contract Laboratory Program (CLP)

[Z-130020-05] Pesticide CLP GPC Check Solution, 25, 50 & 100 mg/L, 1 mL
Pesticide CLP GPC Check Solution, 25, 50 & 100 mg/L, 1 mL
Item No.: Z-130020-05
$ 44.00 44.0 USD
[Z-130050-03] Pesticide Performance Evaluation Mix CLP Standard,8-12, Various Concentrations, 100, 200, 500, 1000, & 2500 µg/L, 1 mL
Pesticide Performance Evaluation Mix CLP Standard,8-12, Various Concentrations, 100, 200, 500, 1000, & 2500 µg/L, 1 mL
Item No.: Z-130050-03
$ 71.00 71.0 USD
[Z-116710-01] CLP 04.1 B/N Mega Mix A, 1,000 mg/L, 1 mL
CLP 04.1 B/N Mega Mix A, 1,000 mg/L, 1 mL
Item No.: Z-116710-01
$ 143.85 143.85 USD
CLP Base/Neutral Surrogate Solution, 5,000 mg/L
CLP Base/Neutral Surrogate Solution, 5,000 mg/L
0.0 USD
[Z-111112-01] CLP Semivolatile Calibration Mix, 1,000 mg/L, 1 mL
CLP Semivolatile Calibration Mix, 1,000 mg/L, 1 mL
Item No.: Z-111112-01
$ 241.00 241.0 USD
[Z-110022-02] CLP SV Calibration Mix #1 (Anilines), 5-1, 2,000 mg/L, 1 mL
CLP SV Calibration Mix #1 (Anilines), 5-1, 2,000 mg/L, 1 mL
Item No.: Z-110022-02
$ 44.00 44.0 USD
[Z-116715-02] CLP SV Calibration Mix #4 (Base/Neutrals), 13-1, 2,000 mg/L, 1 mL
CLP SV Calibration Mix #4 (Base/Neutrals), 13-1, 2,000 mg/L, 1 mL
Item No.: Z-116715-02
$ 63.00 63.0 USD
[Z-110005-05] Tinted CLP BNA Surrogate Solution, 2000 mg/L, 1 mL
Tinted CLP BNA Surrogate Solution, 2000 mg/L, 1 mL
Item No.: Z-110005-05
$ 120.00 120.0 USD
CLP Acid Surrogate Solution, 7500 mg/L
CLP Acid Surrogate Solution, 7500 mg/L
0.0 USD
[Z-111130-01] CLP Semivolatile Calibration Mix, 66-12, 1,000 mg/L, 1 mL
CLP Semivolatile Calibration Mix, 66-12, 1,000 mg/L, 1 mL
$ 243.00 243.0 USD