You searched for: Standards
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 reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
Anhydrotetracycline hydrochloride, can be used as a secondary standard
Supplier: Thermo Fisher Scientific
Purity: ≥80 % (as is, calculated)
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Standard mixture of n-Paraffins (consists of C12, C13, C14, C15 and C16), standard material for GC
Supplier: TCI
Standard Mixture of n-Paraffins (consists of C12, C13, C14, C15 and C16)
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Conductivity standard 1413 µS/cm (25°C; 0,01 mol/L; KCl) for conductivity measurement
Supplier: SI ANALYTICS
Conductivity standard 1413 µS/cm (0,01 mol/l; KCl), Reference temperature: 25 °C
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Standard mixture of n-Paraffins (consists of C5, C6, C7, C8 and C9), standard material for GC
Supplier: TCI
Standard Mixture of n-Paraffins (consists of C5, C6, C7, C8 and C9)
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Standards for portable colorimeters, CAL Check™
Supplier: HANNA
CAL Check™ Standard for Chlorine (free) 0,0 and 1,00 ppm, CAL Check™, : N/A
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Organic reference standard, Carbon disulphide 5000 µg/ml in methanol, Dr Ehrenstorfer
Supplier: EHRENSTORFER
Organic Standard, Carbon disulphide 5,000 µg/ml in methanol, Pack type: Glass bottle
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Standard mixture of n-Paraffins (consists of C21, C22, C23, C24 and C25), standard material for GC
Supplier: TCI
Standard Mixture of n-Paraffins (consists of C21, C22, C23, C24 and C25)
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Conductivity standard 100000 µS/cm (25 °C; 0.85 mol/L; KCl) for conductivity measurement
Supplier: YSI ENVIRONMENTAL
Conductivity standard 100,000 µS/cm (0,85 mol/l; KCl), Reference temperature: 25 °C
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Conductivity standard 147 µS/cm (25 °C; 0,001 mol/L; KCl) for conductivity measurement
Supplier: SI ANALYTICS
Conductivity standard 147 µS/cm (0,001 mol/l; KCl), Reference temperature: 25 °C
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Nitrite nitrogen standard for IC, certified reference material, TraceCERT®, Supelco®
Supplier: SUPELCO
N as nitrite in water (pH ~11), 1000 mg/l, TraceCERT®, Supelco®, Application: Ion chromatography standards
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Potassium chloride standard solution
Supplier: HACH
For calibrations/accuracy checks on conductivity/salinity meters.
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Supelco® Drug and metabolite standards, Testosterone-d3 (16, 16, 17-d3) solution, (CRM)
Supplier: SUPELCO
Organic Standard, Testosterone-d3 (16, 16, 17-d3) solution, ampoule of 1 ml
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Residual Solvents Class 2 - Mixture, Reference Standards
Supplier: U.S. PHARMACOPEIA
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Phosphate standard solutions
Supplier: HACH
Standard solution for accuracy checks in phosphate (phosphorus) determinations.
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Extractables and Leachables Screening Standard for GC, certified reference material, TraceCERT®, 14 components in tert-Butyl methyl ether, Supelco®
Supplier: SUPELCO
Ready to use certified reference material mixture suitable for dentification and quantification of extractables and Leachables by GC. 14 components in a concentration of 50 μg/mL.
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Standard mixture of n-Paraffins (consists of C7, C8, C9, C10 and C11), standard material for GC
Supplier: TCI
Standard Mixture of n-Paraffins (consists of C7, C8, C9, C10 and C11)
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Multi-element calibration standard 5
Supplier: PERKIN ELMER GC INSTRUMENTS
Designed to contain virtually every element in the mass spectrum for concentration checks.
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4-Epianhydrotetracycline hydrochloride, 97%, can be used as a secondary standard
Supplier: Thermo Fisher Scientific
CAS No.: 4465-65-0
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Polystyrene standards, GPC/SEC columns calibration
Supplier: VARIAN
Polystyrene standards for many organic solvents either for conventional GPC column calibration or for calibrating light scattering and viscosity detectors that provide equidistant calibration points for greater accuracy.
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Extractables and Leachables Screening Standard for LC, certified reference material, TraceCERT®, 21 components in Acetonitrile, Supelco®
Supplier: SUPELCO
Ready to use certified reference material mixture suitable for dentification and quantification of extractables and Leachables by LC. 21 components in a concentration of 50 μg/ml.
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Iron standard solution
Supplier: HACH
For accuracy checks in iron determinations.
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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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Nitrogen-ammonia standard solutions
Supplier: HACH
For accuracy checks in ammonia nitrogen 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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Standard mixture of fatty acid methyl esters (consists of methyl decanoate, laurate, myristate, palmitate and stearate), standard material for GC
Supplier: TCI
Standard Mixture of Fatty Acid Methyl Esters (consists of Methyl Decanoate, Laurate, Myristate, Palmitate and Stearate)
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Sodium 3-(Trimethylsilyl)-1-propanesulfonate, 1H NMR Standard for D₂O Solvent
Supplier: TCI
Suitable for NMR-analysis.
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Standard mixture of fatty acid methyl esters (consists of methyl hexanoate, heptanoate, octanoate, nonanoate, and decanoate), standard material for GC
Supplier: TCI
Standard Mixture of Fatty Acid Methyl Esters (consists of Methyl Hexanoate, Heptanoate, Octanoate, Nonanoate, and Decanoate)
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VOA calibration standards and kits
Supplier: RESTEK
Internal standard mix 8260, includes chlorobenzene-d5, 1,4-dichlorobenzene-d4, 1,4-difluorobenzene and pentafluorobenzene, 2500 μg/ml each , : N/A, Matrix: P&T Methanol
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Chlorine standard solution
Supplier: HACH
For accuracy checks in chlorine determinations. Lot specific concentration displayed on label.
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Standard mixture of fatty acid methyl esters (consists of methyl formate, acetate, propionate, butyrate and valerate), standard material for GC
Supplier: TCI
Standard Mixture of Fatty Acid Methyl Esters (consists of Methyl Formate, Acetate, Propionate, Butyrate and Valerate)