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.
524 Calibration Mix #7 Kit, Restek
Supplier: Restek
Contains 1 ml each of these mixtures: 524 calibration mix #7A, 524 calibration mix #7B. calibration mix #7A contains Acetone (67-64-1), 2-Butanone (MEK) (78-93-3), 2-Hexanone (591-78-6), 4-Methyl-2-pentanone (MIBK) (108-10-1), Tetrahydrofuran (109-99-9); calibration mix #7B contains Acrylonitrile (107-13-1)
Allyl chloride (3-chloropropene) (107-05-1), Ethyl methacrylate (97-63-2), Methyl acrylate (96-33-3), Methyl methacrylate (80-62-6), Nitrobenzene (98-95-3), Pentachloroethane (76-01-7).
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8330 Calibration Mix #2 (7 components), Restek
Supplier: Restek
EPA method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection. Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.
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Volatile acid standards
Supplier: Hach
Acetate standard solution for accuracy checks in volatile acids determinations.
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Quinine sulfate Dihydrate *Fluorescence Reference Standard, Anaspec Inc.
Supplier: Anaspec
Reference standard for measuring fluorescence quantum yield.
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USAF Test Charts, Electron Microscopy Sciences
Supplier: Electron Microscopy Sciences
USAF resolution charts are recognized as a universal standard for testing the vertical and horizontal resolution of imaging systems.
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Lead in Soil Test Kit
Supplier: Industrial Test Systems
Rare Test for Economical Price
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Brix Calibration Solutions, 28%, Sper Scientific
Supplier: Sper Scientific
Solution is packaged 10 bottles per box.
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LaMotte® Soil pH TesTabs Kit
Supplier: LaMotte
An Ideal Alternative to Liquid pH Indicators
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EPA Method 527, Ultra Scientific
Supplier: Ultra Scientific
EPA Method 527 is used to determine SOCs
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NPW - Herbicides QC Concentrate
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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TOC/DOC QC Concentrate, Certified Reference Material
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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Refractive Index Liquids, Series E
Supplier: Cargille Laboratories
Refractive index liquids have a broad range of applications in diversified fields.
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Nitrite-N QC Concentrate
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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Hexavalent Chromium QC Concentrate
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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Vanadium QC Concentrate, Certified Reference Material
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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Dissolved Oxygen QC Concentrate, Certified Reference Material
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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Cyanide in Soil Reference Material
Supplier: SPEX CERTIPREP LLC
Meet or exceed performance criteria with QC samples.
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EPA method 501 Trihalomethane Mixture, Restek
Supplier: Restek
Mixture is packaged in purge and trap methanol at a concentration of 200 µg/mL in a 1 ml ampoule.
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611 Haloethers Calibration Mix (5 components), Restek
Supplier: Restek
Haloethers calibration mix contains bis(2-chloroethoxy)methane, bis(2-chloroethyl)ether, 4-bromophenyl phenyl ether, 4-chlorophenyl phenyl ether, 2,2'-oxybis(1-chloropropane).
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PVOC Mix (California) (7 Components), Restek
Supplier: Restek
Mix contains: Benzene (71-43-2); Ethylbenzene (100-41-4); Methyl tert-butyl ether (MTBE) (1634-04-4); Toluene (108-88-3); m-Xylene (108-38-3); o-Xylene (95-47-6); p-Xylene (106-42-3).
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EPA Methods 502.1, 502.2, 524.2, 601, 624, 8010, 8021, 8240 and 8260 Gas Mixture, NSI
Supplier: SPEX CERTIPREP LLC
Mixture is packaged in methanol at a concentration of 1000µg/mL in a 1.5mL ampule.
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502.2 Calibration Mix #1 (gases) (6 components), Restek
Supplier: Restek
Contains: Bromomethane (methyl bromide) (74-83-9); Chloroethane (ethyl chloride) (75-00-3); Chloromethane (methyl chloride) (74-87-3); Dichlorodifluoromethane (CFC-12) (75-71-8); Trichlorofluoromethane (CFC-11) (75-69-4); Vinyl chloride (75-01-4)
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Aroclor 1242 for US EPA Methods 505, 508, 608, 625, 8082, CLP Series Methods, and ASTM Method D6160, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
Semivolatiles
US EPA Method 625 is an analytical method for the monitoring of acid and base neutral extractable fractions in municipal and industrial wastewater by GC/MS.
US EPA Method 8270 is a general analytical method for the monitoring of semivolatiles in environmental and waste samples by GC/MS.
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Aroclor 1248 for US EPA Methods 505, 508, 608, 625, 8082, CLP Series Methods, and ASTM Method D6160, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
Semivolatiles
US EPA Method 625 is an analytical method for the monitoring of acid and base neutral extractable fractions in municipal and industrial wastewater by GC/MS.
US EPA Method 8270 is a general analytical method for the monitoring of semivolatiles in environmental and waste samples by GC/MS.
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PerkinElmer ICP Tuning Solution
Supplier: Inorganic Ventures
PerkinElmer ICP Tuning Solution
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100 ppb Mercury in HNO₃
Supplier: Inorganic Ventures
100 ppb Mercury in HNO₃
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Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: Janitorial Supplies
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: Janitorial Supplies
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International