GFS Chemicals, 125 mL
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In-Spec® UV Standard #3
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 0.079.
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AMCO Clear® Turbidity Standard, 30 NTU
GFS ChemicalsTEST Turbidity 30 NTU +/- 0.3 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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In-Spec® UV Standard #8
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 0.253.
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AMCO Clear® Turbidity Standard, 4.0 NTU
GFS ChemicalsTurbidity 4.0 NTU +/- 0.04 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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AMCO Clear® Turbidity Standard, 6.0 NTU
GFS ChemicalsTEST Turbidity 6.0 NTU +/- 0.06 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (AQ4500) EPA mode Turbidity (AQ4500) IR Ratio mode Thermo Electron AQ4500 serial number Instrument calibration date Formazin Concentrate (4000 NTU) lot number Formazin chec
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TEST Turbidity (LaMotte 2020) 10 NTU +/-0.1 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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AMCO Clear® Turbidity Standard, 2.0 NTU
GFS ChemicalsTEST Turbidity 2.0 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (Hach 2100N/AN and IS meters) 20 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material
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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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tert-Butyl Acetate, 98.0%
GFS ChemicalsCH3COOC(CH3)3 CAS#: 540-88-5 F.W.: 116.16 NFPA#: 1-3-0 Specific Gravity: 0.870
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In-Spec® Visible Standard 0.5
GFS ChemicalsNIST Traceable, non-toxic reference material for the visible spectrophotometer. Full visible scan reported with a typical absorbance at 600 nm in 10 mm pathlength being approximately 0.368.
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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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AMCO Clear® Turbidity Standard, 200 NTU
GFS ChemicalsTEST Turbidity 200 NTU +/- 2 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (Turner Aquafluor) 10 NTU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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AMCO Clear® Turbidity Standard, 0.8 NTU
GFS ChemicalsFor all EPA 180.1 turbidimeters. TEST Turbidity 0.8 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (on LaMotte 2020) 100 NTU +/-1 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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AMCO Clear® Turbidity Standard, 40 NTU for Hach 2100P
GFS ChemicalsTEST Turbidity (on Hach 2100P) 40 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material
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In-Spec® Purple Color Standard
GFS ChemicalsReference material for verification of UV-Visible spectrophotometers' photometric accuracy. Popular verification of requirements for BCA assay.
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Osmium Tetroxide, 0.01 M Solution in 0.1 M Sulfuric Acid
GFS ChemicalsThe GFS Chemicals osmium tetroxide (0.01 M solution in 0.1 M sulfuric acid) is mainly used in research facilities and chemical laboratories to conduct wide range of experiments. It is available in sturdy bottle that endures heavy and rigorous usage. Application: For Professional, Scientific and…
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In-Spec® Visible Standard 0.1
GFS ChemicalsNIST Traceable, non-toxic reference material for the visible spectrophotometer. Full visible scan reported with a typical absorbance at 600 nm in 10 mm pathlength being approximately 0.072.
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AMCO Clear® Turbidity Standard, 0.6 NTU
GFS ChemicalsFor all EPA 180.1 turbidimeters. TEST Turbidity 0.6 NTU +/- 0.02 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material
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AMCO Clear® Turbidity Standard, 800 NTU
GFS ChemicalsTEST Turbidity 800 NTU +/- 8 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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TEST Turbidity (Hach 2100N/AN and IS meters) 0.1 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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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.
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AMCO Clear® Turbidity Standard, 600 NTU
GFS ChemicalsTEST Turbidity 600 NTU +/- 6 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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In-Spec® Visible Standard 1.0
GFS ChemicalsNIST Traceable, non-toxic reference material for the visible spectrophotometer. Full visible scan reported with a typical absorbance at 600 nm in 10 mm pathlength being approximately 0.767.
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TEST Turbidity (on Hach 43900/XR) 180 NTU +/- 2 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material
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AMCO Clear® Turbidity Standard, 400 NTU
GFS ChemicalsTEST Turbidity 400 NTU +/- 4 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material