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:: Chemical Oxygen Demand (COD) - 500 mL

Catalog: #974

One 1,000 mg/L standard preserved with HCl in a 500 mL amber glass bottle.

:: Chemical Oxygen Demand - 125 mL

Catalog: #042

One 1,000 mg/L standard preserved with HCl in a 125 mL amber glass bottle.

:: Total Kjeldahl-Nitrogen (TKN) - 500 mL

Catalog: #996

One 1,000 mg/L standard preserved with HCl in a 500 mL poly bottle.

:: Total Kjeldahl-NItrogen (TKN) - 125 mL

Catalog: #043

One 1,000 mg/L standard preserved with HCl in a 125 mL poly bottle.

:: MBAS/LAS Surfactants

Catalog: #975

One 10 mL flame-sealed ampule containing 1,000 mg/L LAS preserved with H₂SO₄ for use with USEPA method 425.1.

:: Total Organic Carbon (TOC)

Catalog: #978

One 500 mL 1,000 mg/L amber glass bottle preserved with H₂SO₄ .

:: Total Organic Halides (TOX)

Catalog: #976

One 2 mL flame-sealed ampule at 1,000 mg/L in MeOH to be diluted for use with Standard Methods 5320B.

:: Phenol

Catalog: #982

A 500 mL 1,000 mg/L amber glass bottle preserved with H₂SO₄.

:: Sulfide

Catalog: #999

One 10 mL flame-sealed ampule with 1,000 mg/L sulfide preserved with NaOH and zinc acetate.