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Ascorbic Acid – Applicable for various methods requiring dechlorination |
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Ascorbic Acid & NaOH – SM4500 or EPA 335.4 for total cyanide analyses in chlorinated matrices |
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HCL – EPA 624, 524.2 & 8260 volatiles + 525.2 semi-volatile target organic lists + 1600 series trace level elemental scans |
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HNO3 – EPA 200, 6000 & 7000 target elemental lists |
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H2SO4 – EPA 1664 oil & grease, 420.1 phenolics, SM5220D chemical oxygen demand & SM4500 target inorganic lists |
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H3PO4 – EPA 9060 & SM5301C for total organic carbon |
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Methanol – EPA 5035 method for purgeable organic compounds |
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Monochloroacetic Acid – EPA 513.1 or 632 carbamate pesticides analyses in drinking water or wastewater matrices |
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Na2S2O3 – EPA 524.2 & 624 for total trihalomethanes + any use to de-chlorinate finished water prior to preservation or analyses |
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NaOH - SM4500 or EPA 335.4 for total cyanide analyses |
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(NH42)2SO4 – EPA218.6, 7199, 7196 & SM3500 for total hexavalent chromium (Cr6) |
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NH4Cl – EPA552.2 for total haloacetic acids used to de-chlorinate finished water prior to analyses |

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Reagent Water – Applicable for various method requirements |

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Sodium Bisulfate - EPA 5035 method for purgeable organic compounds |
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ZnAcetate/NaOH – SM4500 or EPA 376.2 for total sulfide |