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

1. Turbidity (on Hach 2100 P) 800 NTU +/-8 2. Absorbance at 455nm (10mm pathlength) 3. Lot Number of Baseline Material

TEST Turbidity (Turner C3) 100 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

TEST Turbidity (on Hanna HI88713) 800 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

1. Turbidity 10 NTU +/- 0.1 2. Absorbance at 455nm (100mm pathlength) 3. Lot Number of Baseline Material

For all EPA 180.1 turbidimeters.

Kit contains 0.0, 2, 4, 6, 8 and 10 NTU primary standards to be used to calibrate and verify instrument's linearity in the 0.0 to 10 NTU range.

Turbidity 5.0 NTU +/- 0.05 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

For Hanna Models HI 93703 and LP 2000. TEST Turbidity (on Hanna HI 93703) 10 FNU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

TEST Turbidity (on Horiba U-52 sensor) 800 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

TEST Turbidity (Haze) 1.0 EBC +/- 0.05 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

TEST Turbidity (on Hach 2100AN IS) 100 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

Turbidity 20 NTU +/- 0.2 Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

TEST Turbidity 30 NTU +/- 0.3 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

TEST Turbidity (Horiba W-22) 100 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

TEST Turbidity 800 NTU +/- 8 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

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

For all EPA 180.1 turbidimeters TEST Turbidity 0.3 NTU +/-0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

TEST Turbidity 1000 NTU Absorbance at 455 nm (10mm pathlength) 1.48-1.62 Lot Number of Baseline Material

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

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 (

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 (

TEST Turbidity 900 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

Kit contains 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 NTU primary standards to be used to calibrate and verify instrument's linearity in the 0.0 to 1.0 NTU range.

TEST Turbidity (Hach 2100N/AN and IS meters) 20 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

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

For all EPA 180.1 turbidimeters.

Kit contains 0.0 and 40 NTU standards required to calibrate Orbeco-Hellige instruments. The deluxe kit also contains sealed secondary standards of each value.

TEST Turbidity (on Hanna HI 9829) 20 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

TEST Turbidity (on Hach 2100P) 40 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

Turbidity 40 NTU +/- 0.4 Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material