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.
EPA 610 polynuclear aromatic hydrocarbons mixture, certified reference material, Supelco®
Supplier: Merck
EPA 610 Polynuclear Aromatic Hydrocarbons Mixture, Supelco®, Certified reference material, in methanol: methylene chloride (1:1) (varied), : N/A
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EPA 8100 PAH additional components mix, certified reference material, Supelco®
Supplier: Merck
EPA 8100 PAH Additional Components Mix, Supelco®, Certified reference material, 1000 mug/mL in dichloromethane, : N/A
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SS TCL Polynuclear Aromatic Hydrocarbons Mix, certified reference material, Supelco®
Supplier: Merck
SS TCL Polynuclear Aromatic Hydrocarbons Mix, Supelco®, Certified reference material, 2000 mug/mL each component in methylene chloride: benzene (1:1), : N/A
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Semivolatile Base/Neutrals Surrogate Spike Mix, certified reference material, Supelco®
Supplier: Merck
Semivolatile Base/Neutrals Surrogate Spike Mix, Supelco®, Certified reference material, 5000 mug/mL each component in methylene chloride, : N/A
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Melting range PT, proficiency testing material, Supelco®
Supplier: Merck
Melting Range PT, Proficiency Testing Material
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EPA TCL base/neutrals mix 1, certified reference material, Supelco®
Supplier: Merck
EPA TCL Base/Neutrals Mix 1, Supelco®, Certified reference material, 2000 mug/mL each component in methylene chloride, : N/A
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Inland silverside (Menidia beryllina), 7-day Chronic, daily renewal, SSW, Supelco®
Supplier: Merck
Inland silverside (Menidia beryllina), 7-day Chronic, daily renewal, SSW
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Ferromanganese, high carbon, alloy, NIST-68C, reference standard
Supplier: LGC Standards PROMOCHEM
This standard reference material is in the powder form intended for use in checking chemical methods of analysis and in calibration with instrumental methods of analysis.
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Reference standards, surface water - trace metals
Supplier: LGC Standards PROMOCHEM
This reference standard is intended for daily use in conjunction with measurement of elements in surface waters. The water solution contains 45 elements with concentrations traceable to
ultrapure metals or stoichiometrically well-defined substances.
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Elemental analysis standards, brick clay - constituents, NIST-679
Supplier: LGC Standards PROMOCHEM
Brick clay - constituents, : N/A
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TOC Linearity Set, Supelco®
Supplier: Merck
TOC linearity set, Supelco®, : N/A
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Solvent screen, certified reference material, Supelco®
Supplier: Merck
Solvent Screen, Supelco®, Certified reference material
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Minerals, (CRM), Supelco®
Supplier: Merck
Minerals, Supelco®, Certified reference material, : N/A
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Chlorinated pesticides in soil, (CRM), Supelco®
Supplier: Merck
Chlorinated Pesticides in Soil, Supelco®, Certified reference material, : N/A
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PAH - Sediment 1, (CRM), Supelco®
Supplier: Merck
PAH - Sediment 1, Supelco®, Certified reference material, : N/A, Pkg of 50 g
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Particulate matter in impinger solution, proficiency testing material, Supelco®
Supplier: Merck
Particulate Matter in Impinger Solution, Supelco®, Proficiency Testing Material, : N/A
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Dioxin and Furans in Soil, (CRM), Supelco®
Supplier: Merck
Dioxin and Furans in Soil, Supelco®, Certified reference material, : N/A
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Dissolved Oxygen - Whole Volume, (CRM), Supelco®
Supplier: Merck
Dissolved Oxygen - Whole Volume, Supelco®, Certified reference material, : N/A
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Trace metals - chalky loam 1, (CRM), Supelco®
Supplier: Merck
Trace Metals - Chalky Loam 1, Supelco®, Certified reference material, : N/A, Pkg of 50 g
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Trace metals - powdered paint 1, (CRM), Supelco®
Supplier: Merck
Trace Metals - Powdered Paint 1, Supelco®, Certified reference material, : N/A, Pkg of 20 g
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Nitroaromatics/Nitrosamine - Loamy Sand 1, (CRM), Supelco®
Supplier: Merck
Nitroaromatics/Nitrosamine - Loamy Sand 1, Supelco®, Certified reference material, : N/A, Pkg of 10 g
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EPA Phthalate esters mix, certified reference material, Supelco®
Supplier: Merck
EPA Phthalate Esters Mix, Supelco®, Certified reference material, 2000 mug/mL each component in hexane, : N/A
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Trace metals - sewage amended soil, (CRM), Supelco®
Supplier: Merck
Trace Metals - Sewage Amended Soil, Supelco®, Certified reference material, : N/A, Pkg of 50 g
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Trace Metals 2 in Seawater - Whole Volume - WP, Proficiency Testing Material, Supelco®
Supplier: Merck
Trace Metals 2 in Seawater - Whole Volume - WP, Supelco®, Proficiency Testing Material, : N/A
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EPA SS TCL Volatiles mix 1, certified reference material, Supelco®
Supplier: Merck
EPA SS TCL Volatiles Mix 1, Supelco®, Certified reference material, 2000 mug/mL each component in methanol: water (9:1), : N/A
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EPA 8020/8240 Aromatic Volatiles Mix, certified reference material, Supelco®
Supplier: Merck
EPA 8020/8240 Aromatic Volatiles Mix, Supelco®, Certified reference material, 100 mug/mL each component in methanol, : N/A
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EPA 8270 base-neutral surrogate spike mix, certified reference material, Supelco®
Supplier: Merck
EPA 8270 Base-Neutral Surrogate Spike Mix, Supelco®, Certified reference material, 1000 mug/mL each component in dichloromethane, : N/A
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MISA Group 17 non-halogen organic mix, certified reference material, Supelco®
Supplier: Merck
MISA Group 17 Non-Halogen Organic Mix, Supelco®, Certified reference material, 2000 mug/mL each component in methanol, : N/A
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Vitamins - IR identification PT, proficiency testing Material, Supelco®
Supplier: Merck
Vitamins - IR Identification PT, Proficiency Testing Material
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Residual Solvents Class IIA PT, Proficiency Testing Material, Supelco®
Supplier: Merck
Residual Solvents Class IIA PT, Proficiency Testing Material
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Supplier: Integra
Supplier: VWR Collection
Supplier: Integra
Supplier: VWR Chemicals
Supplier: VWR Collection
Supplier: Integra
Supplier: SCIENTIFIC INDUSTRIES ELMIS
Supplier: VWR Collection
Supplier: VWR Collection
Supplier: Industrial Physics
Supplier: VWR Collection
Supplier: VWR Collection
Supplier: VWR Collection
Supplier: EPPENDORF
Supplier: GETT GERATETECHNIK
Supplier: HENKE SASS WOLF