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Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
Conductivity standard 84 µS/cm (25 °C; KCl)
Supplier: Chemicals
Conductivity standard 84 µS/cm (KCl), Reference temperature: 25 °C
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Accessories for Orion™ AQUAfast turbidimeters
Supplier: Thermo Orion
Turbidity Standard, Stablcal® stabilized formazine standard, 4000 NTU, Type: Formazine, Glass bottle
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Phosphate standard solutions
Supplier: Hach
Standard solution for accuracy checks in phosphate (phosphorus) determinations.
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Iron standard solution
Supplier: Hach
For accuracy checks in iron determinations.
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SpecCheck secondary gel standards sets
Supplier: Hach
SpecCheck secondary gel standards sets, 0 - 2 mg/l Cl₂, For test kit(s): Chlorine (DPD) LR, 4 Vials
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Mercury standard solution, 20 mg/L Hg in dil. nitric acid with hydrofluoric acid (max. 1%) (from Hg)
Supplier: CUSTOM MADE CHEMICALS LAB
Mercury Standard, 20 mg/L, Mercury, Matrix: Nitric acid dil., Application: Calibration
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Water hardness standard for ISE calibration, Orion™
Supplier: Thermo Orion
Water hardness standard for ISE calibration, Orion™, 100 ppm CaCO₃, : N/A
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Gelex secondary standards kit for 2100 series turbidity meters
Supplier: Hach
Gelex secondary standards kit for 2100P and 2100Q series portable turbidimeters (includes 1 sealed vial each for 0 to 10 NTU, 10 to 100 NTU, 100 to 1000 NTU).
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Orion™ Conductivity Standards and Solutions, Thermo Scientific
Supplier: Thermo Orion
Perform virtually any electrochemistry analysis with these conductivity standards and solutions. All conductivity standards are traceable to NIST™ standard reference materials.
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Wastewater inorganics quality control standard
Supplier: Hach
These mixed standards are ready to use, no dilutions are required. They contain ammonia nitrogen, nitrate nitrogen, COD, phosphate, sulphate and TOC.
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ISE surfactant analysis solutions, Orion™
Supplier: Thermo Orion
ISE Surfactant Analysis Solutions for titrations with surfactant ion selective electrodes (ISE).
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Standard for osmometer
Supplier: Advanced Instruments
Calibration standard is used to check the perforance of osmometer and test methods.
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Silicone Viscosoty Standards for Rotational Viscometers
Supplier: CANNON INSTRUMENT
CANNON silicone viscosity standards are intended for use with rotational viscometers only.
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Viscosity standards, general purpose
Supplier: CANNON INSTRUMENT
These certified standards are useful for calibration and verification procedures.