Reference Standards: US EPA Methods
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8270 MegaMix Standard (76 components)
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- Fewest mixtures needed for calibration and matrix spikes.
- Mixtures formulated for maximum stability.
- Contains most routinely analyzed compounds.

EPA Method 525.3 OCP Cal Standard (29 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 OPP Cal Standard (16 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 ONP Cal Standard (44 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 PAH Cal Standard (20 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 PCB Cal Standard (14 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 PAH IS Mix (3 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 PCP IS
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

EPA Method 525.3 Surrogate Standard (3 components)
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- Developed specifically for EPA Method 525.3.
- Formulated to provide maximum stability in concentrations convenient for dilution.
- Simplifies and speeds up standard preparation.
- Quantitatively tested to confirm composition; detailed support documentation provided.

Acid Matrix Spike Mix (5 components)
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- Highest concentrations commercially available.
- Reduces laboratory cost per sample extract.

610 PAH Calibration Mix A (16 components)
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8270/Appendix IX Kit
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Contains 1 mL each of these mixtures.
31850: 8270 MegaMix Standard
31834: 605 Benzidines Calibration Mix
32459: Appendix IX Mix #1, Revised (Methapyrilene is not included in this revised standard.)
32460: Methapyrilene Standard
31806: Appendix IX Mix #2
31850: 8270 MegaMix Standard
31834: 605 Benzidines Calibration Mix
32459: Appendix IX Mix #1, Revised (Methapyrilene is not included in this revised standard.)
32460: Methapyrilene Standard
31806: Appendix IX Mix #2

Semivolatiles MegaMix Standard, EPA Method 625 (54 components)
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- MegaMix mixture includes all target compounds not in our current products.
- Incorporates all phenols, for fast preparation and calibration.
- Incorporates “additional” extractable Method 625 compounds.

SV Internal Standard Mix (6 components)
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- High purity for consistent results.
- Free quality assurance data package available online.
- Highest concentrations commercially available.

B/N Surrogate Mix (4/89 SOW) (3 components)
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- High purity for consistent results.
- Free quality assurance data package available online.
- Highest concentrations commercially available.
- Convenient 1 mL, 5 mL, and 10 mL package sizes reduce cost per sample extract.

8270 Calibration Kit (2,000 µg/mL)
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Contains 1 mL each of these mixtures.
31618: 8270 Calibration Mix #1
31619: 8270 Calibration Mix #2
31620: 8270 Calibration Mix #3
31621: 8270 Calibration Mix #4
31995: 8270 Calibration Mix #5, Revised
31996: 3-Methylcholanthrene Standard
31618: 8270 Calibration Mix #1
31619: 8270 Calibration Mix #2
31620: 8270 Calibration Mix #3
31621: 8270 Calibration Mix #4
31995: 8270 Calibration Mix #5, Revised
31996: 3-Methylcholanthrene Standard

Acid Surrogate Mix (4/89 SOW) (3 components)
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- Highest concentrations commercially available.
- Convenient 1 mL, 5 mL, and 10 mL package sizes.
- Reduces laboratory cost per sample extract.

Appendix IX Mix #1, Revised (17 components)
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B/N Matrix Spike Mix (6 components)
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- Highest concentrations commercially available.
- Reduces laboratory cost per sample extract.