Made from potassium chloride. Conductivity 50,000 +/- 500 uS/cm

TEST Turbidity 600 NTU +/- 6 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

H₂O₂ CAS#: 7722-84-1 F.W.: 34.02 Trace metal grade. Low PPB level impurities.

(CH₃)₂CHCH₂OH CAS#: 78-83-1 F.W.: 74.12 NFPA#: 1-3-0 Descriptions: 2-Methyl-1-propanol

TEST Turbidity (on Hach 2100 N/AN meter) 4000 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric Acid NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric acid NIST Traceable

CH₃COC₂H₅ CAS#: 78-93-3 F.W.: 72.11 NFPA#: 1-3-0 Descriptions: 2-Butanone

CAS#: 9005-84-9 Preserved with Salicylic Acid.

pH (@ 25°C) 8.00 +/- 0.02 NIST Traceable

1000 ppm nitrogen from ammonium chloride, 1220 ppm ammonia. Concentration (as N) 1,000 +/- 10 ug/ml Matrix: Ammonium chloride in water NIST Traceable

C₆H₄(COO(CH₂)₃CH₃)₂ CAS#: 84-74-2 F.W.: 278.34

[(CH₃)₂CHO]₄Ti CAS#: 546-68-9 F.W.: 284.26

Sulfuric acid or sulphuric acid, also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula H2SO4. It is a colorless and oily liquid that is miscible with water at all concentrations. It is soluble in water with the release of…

For Endress and Hauser, Reagecon Diagnostic and Hach 2100 AN IS turbidimeters. TEST Turbidity (on Hach 2100 AN/IS) 4000 NTU Absorbance at 455 nm (10mm pathlength) 3.26-3.50 Lot Number of Baseline Material

The pH of a sample is an indication of its acidity or alkalinity and pH determination is one of the most commonly conducted laboratory measurements. The term pH is defined as the negative logarithm (base 10) of the Hydrogen ion concentration (or, more accurately, Activity) expressed in molarity.…

NIST Traceable, non-toxic reference material for the UV spectrophotometer. Full UV scan reported with a typical absorbance at 300 nm in 10 mm pathlength being approximately 0.754.

pH (@ 25°C) 1.00 +/- 0.06 NIST Traceable

Concentration (as SiO₂) 1,000 +/- 10 ug/ml Matrix: Na₂SiO₃, water

HCON(CH₃)₂ CAS#: 68-12-2 F.W.: 73.09 NFPA#: 3-2-1 Specific Gravity: 0.950

TEST Turbidity 6.0 NTU +/- 0.06 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

Contains potassium hydrogen phthalate and potassium chloride and has a pH near 4.

Volumetric, colorimetric or turbidimetric standard.

HClO₄ CAS#: 7601-90-3 F.W.: 100.46

KHP in dilute phosphoric acid Total organic carbon 1000 +/- 10 ppm Matrix: Phosphoric acid <1%

HNO₃ F.W.: 63.01 NFPA#: 3-0-3 Specific Gravity: 1.408 DOT: 8/5.1/II Descriptions: Trace metal grade. Low ppb metal impurities. Note:Results reported at time of bottling in glass. Thelevels of Al, B, Ca, K, Mg, Mn, Na, and Si will increase over time.

CHCl₃ CAS#: 67-66-3 F.W.: 119.38

For coulometric analysis of oils and petroleum products. Anolyte for coulometric titrators.

pH (@ 25°C) 7.00 +/- 0.02 NIST Traceable

Trace metal grade. Low ppb metal impurities. Note: Results reported at time of bottling in glass. The levels of Al, B, Ca, K, Mg, Mn, Na, and Si will increase over time. Sulfuric acid or sulphuric acid, also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and…

For all EPA 180.1 turbidimeters. TEST Turbidity 0.1 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

TEST Turbidity (AQ4500) EPA mode Turbidity (AQ4500) ISO Neph. mode Turbidity (AQ4500) IR Ratio mode Thermo Electron AQ4500 serial number Instrument calibration date Formazin Concentrate (