GFS Chemicals, Standards
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Test Turbidity (Hach 18900) 18 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (Emerson-Rosemount Clarity II EPA) 20 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material
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Concentration (as PO4) 1,000 +/- 10 ug/ml Matrix: KH2PO4, water
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AMCO Clear® Turbidity Standard, 0.5 EBC
GFS ChemicalsTEST Turbidity (Haze) 0.5 EBC +/- 0.05 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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Zinc 1,000 ppm ICP Standard Solution
GFS ChemicalsConcentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric Acid NIST Traceable
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In 0.001 N perchloric acid. For testing the absorbance scale and linearity of UV Spectrophotometers.
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Didymium Oxide Wavelength Calibration Standard
GFS ChemicalsDidymium oxide (4%) in 10% v/v perchloric acid. Sealed in a far UV quartz cell for wavelength scale accuracy. For both UV and visible region of the spectrum.
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AMCO Clear® Turbidity Standard, 40 NTU
GFS ChemicalsTurbidity 40 NTU +/- 0.4 Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material
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Nitrite, 1,000 ppm, Ion Chromatography Standard Solution
GFS ChemicalsConcentration (as nitrite) 1,000 +/- 10 ug/mL Matrix: sodium nitrite, water Refrigerate to maximize shelf life
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AMCO Clear® Turbidity Standard, 10 NTU for Horiba W-22
GFS ChemicalsTEST Turbidity (on Horiba W-22) 10 NTU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (on Lamotte 2020) 1.0 NTU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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Yttrium 10,000 ppm ICP Standard Solution
GFS ChemicalsConcentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric Acid NIST Traceable
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AMCO Clear® Calibration Kit, for Lamotte 2020we
GFS ChemicalsKit contains 1.0 and 10 NTU standards required to calibrate the Lamotte 2020we instrument. The deluxe kit also contains sealed secondary standards of each value.
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Nitrogen 1,000 ppm Ion Chromatography Standard
GFS Chemicals1000 ppm nitrogen from ammonium chloride, 1220 ppm ammonia. Concentration (as N) 1,000 +/- 10 ug/ml Matrix: Ammonium chloride in water NIST Traceable
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TEST Turbidity (HF Micro 100IR) 10 FNU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (on Turner C3 sensor) 3000 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (Emerson-Rosemount Clarity 2 ISO) 20 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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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
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Cyanide, 1000 ppm Ion Standard
GFS ChemicalsConcentration: 1000 +/- 10 ug/mL Matrix: Potassium cyanide in 0.1% sodium hydroxide
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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 (
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Iron, 1 ppm, Standard Solution
GFS ChemicalsNFPA#: 1-0-1 Specific Gravity: 1.010 AA, colorimetric or volumetric standard
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Fluoride, 10 ppm Standard Solution, Premixed with TISAB
GFS ChemicalsFluoride concentration 10.00 +/- 0.05 ppm Color-coded Orange
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Chromium 10,000 ppm ICP Standard Solution
GFS ChemicalsConcentration 10,000 +/- 100 ug/ml Matrix: <5% HCl NIST Traceable
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Iridium 1,000 ppm ICP Standard Solution
GFS ChemicalsConcentration 1,000 +/- 10 ug/ml Matrix: 20% Hydrochloric acid NIST Traceable
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In-Spec® UV Standard #1
GFS ChemicalsNIST 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 0.039.
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Kit contains 0.0 and 10 NTU standards required to calibrate the Hanna HI 93703 and LP 2000 instruments. The deluxe kit also contains sealed secondary standards of each value.
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In-Spec® Nano Kit, Photometric Accuracy Verification
GFS ChemicalsStandard kit for the verification of photometric accuracy at 260, 280 and 320 nm in a 1 mm pathlength spectrophotometer.
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In-Spec® UV Standard #30
GFS ChemicalsNIST 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.