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.

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CombiCheck 70 for Checking the Quality of Photometric Methods for Ammonium, COD and Nitrogen Spectroquant®

Supplier: MilliporeSigma

For Checking the Quality of Photometric Methods for Ammonium, Csb and Nitrogen

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CombiCheck 50 for Checking the Quality of Photometric Methods for Ammonium, COD and Nitrogen Spectroquant®

Supplier: MilliporeSigma

For Checking the Quality of Photometric Methods for Ammonium, Csb and Nitrogen

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10 ppm 29 Element ICP Calibration/Quality Control Standards

Supplier: Inorganic Ventures

10 ppm 29 Element ICP Calibration/Quality Control Standards

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100 ppm 24 Element ICP Calibration/Quality Control Standards

Supplier: Inorganic Ventures

100 ppm 24 Element ICP Calibration/Quality Control Standards

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CombiCheck 20 for Checking the Quality of Photometric Methods for Ammonium, Chloride, CSB, Nitrate, Phosphorus and Sulfate Spectroquant®

Supplier: MilliporeSigma

For Checking the Quality of Photometric Methods for Ammonium, Chloride, Csb, Nitrate, Phosphorus and Sulfate

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X-Checker™, Electron Microscopy Sciences

Supplier: Electron Microscopy Sciences

The X-Checker™ was the first and remains the only complete calibration aid for SEM/EDS Systems.

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TX TPH Matrix Spike Mix (2 Components), Restek

Supplier: Restek

The mix consists of diesel fuel #2 composite, unleaded gasoline composite.

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SV Calibration Mix #6 (18 Components), Restek

Supplier: Restek

Contains: Aldrin (309-00-2); α-BHC (319-84-6); β-BHC (319-85-7); δ-BHC (319-86-8); γ-BHC (Lindane) (58-89-9); 4,4'-DDD (72-54-8); 4,4'-DDE (72-55-9); 4,4'-DDT (50-29-3); Dieldrin (60-57-1); Endosulfan I (959-98-8); Endosulfan II (33213-65-9); Endosulfan sulfate (1031-07-8); Endrin (72-20-8); Endrin aldehyde (7421-93-4); Endrin ketone (53494-70-5); Heptachlor (76-44-8); Heptachlor epoxide (isomer B) (1024-57-3); Methoxychlor (72-43-5)

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100 ppm Aklali, Alkaline Earth, Non-Transition Elements ICP Standards

Supplier: Inorganic Ventures

100 ppm Aklali, Alkaline Earth, Non-Transition Elements ICP Standards

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Bromoform, Standard, 2000 μg/ml, Restek

Supplier: Restek

Solvent packaged in purge-and-trap-grade methanol.

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EPA Method 8310 PAH Mixture, Restek

Supplier: Restek

18 components

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Hanna 1413 µS/cm Conductivity Standard

Supplier: HANNA INSTRUMENTS

NIST traceable and contained in portable single-use sachets.

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beta-Apo-oxytetracycline, can be used as Secondary Standard, Thermo Scientific

Supplier: Thermo Scientific Chemicals

CAS No.: 18751-99-0

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Organic Reference Standard, Acrolein, NSI

Supplier: SPEX CERTIPREP LLC

acrolein, 5000 ug/mL in Acetonitrile.

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Phenacetin, Melting Point Standard, USP

Supplier: USP

It can be used as melting point standard.

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Conductivity Standards, Potassium Chloride, Referenced at 25 °C

Supplier: Hach

Conductivity Standards, Potassium Chloride, Referenced at 25 °C

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TNRCC 1006 Retention Time Marker Mix (9 Components), Restek

Supplier: Restek

This TNRCC 1006 retention Ttme marker mix contains: (C6) n-Hexane, (C7) n-Heptane, (C8) n-Octane, (C10) n-Decane, (C12) n-Dodecane, (C16) n-Hexadecane, (C21) n-Heneicosane, (C28) n-Octacosane, (C35) n-Pentatriacontane.

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Toluene, 1 mL/ampoule, Standard, 2000 μg/mL, Restek

Supplier: Restek

Solvent packaged in purge-and-trap-grade methanol.

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Mixed Calibration Std 2, ICP, Ricca Chemical Company

Supplier: Ricca Chemical

Mixed Calibration Std 2, ICP, Ricca Chemical Company

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VeriSpec® ICP-MS Tuning Solution 9 Components, RICCA Chemical Company

Supplier: Ricca Chemical

Certified reference material (CRM) for ICP-MS

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VeriSpec® ICP Tuning Solution, 15 components, RICCA Chemical Company

Supplier: Ricca Chemical

Certified reference material (CRM) for ICP-MS

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Trihalomethanes Voaltiles Mix

Supplier: SPEX CERTIPREP LLC

Volatiles US EPA method 502.2 is a general analytical method for the monitoring of halogenated, purgeable VOCs in drinking water and raw water sources by GC megabore capillary column techniques and hall and Photoionization Detectors (PID).