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35370 results for Standards

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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.

Hardness QC Certified Reference Material

Hardness QC Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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SGT - HEM (TPH) QC Concentrate, Certified Reference Material

SGT - HEM (TPH) QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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8240/8260 Calibration Check Mix (6 components), Restek

8240/8260 Calibration Check Mix (6 components), Restek

Supplier: Restek

Contains: Chloroform (67-66-3); 1,1-Dichloroethene (75-35-4); 1,2-Dichloropropane (78-87-5); Ethylbenzene (100-41-4); Toluene (108-88-3); Vinyl chloride (75-01-4)

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Simple Nutrients QC Concentrate, Certified Reference Material

Simple Nutrients QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Phytocannabinoid Mixture 10 (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material cintaining a mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS applications

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PCB-Free Transformer Oil, Restek

Supplier: Restek

ASTM Method D4059-00 is used for determining PCB concentrations in various types of transformer oil using GC-ECD detection

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Demand QC Concentrate, Certified Reference Material

Demand QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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EPA method 418.1 TPH Calibration Mixture, Restek

EPA method 418.1 TPH Calibration Mixture, Restek

Supplier: Restek

For the infrared spectrophotometric method for the determination of Total Recoverable Petroleum Hydrocarbons.

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Silica Drinking Water QC Concentrate, Certified Reference Material

Silica Drinking Water QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Phthalates Esters Semivolatiles Mix

Phthalates Esters Semivolatiles Mix

Supplier: SPEX CERTIPREP LLC

US EPA method 8061 is an analytical method for the monitoring of phthalate esters in aqueous and solid samples by GC/MS or GC/ECD.

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607 Nitrosamines Calibration Mix (3 components), Restek

607 Nitrosamines Calibration Mix (3 components), Restek

Supplier: Restek

Contains: N-Nitrosodimethylamine (62-75-9); N-Nitroso-di-n-propylamine (621-64-7); N-Nitrosodiphenylamine (86-30-6)

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Acid Matrix Spike Mix (5 components), Restek

Acid Matrix Spike Mix (5 components), Restek

Supplier: Restek

Contains: 4-Chloro-3-methylphenol (59-50-7); 2-Chlorophenol (95-57-8); 4-Nitrophenol (100-02-7); Pentachlorophenol (87-86-5); Phenol (108-95-2)

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TCLP Volatiles Spike 

TCLP Volatiles Spike 

Supplier: SPEX CERTIPREP LLC

TCLP Series Volatiles Toxicity Characteristic Leaching Procedure (TCLP) is a soil sample extraction method for chemical analysis employed as an analytical method to simulate leaching through a landfill.

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Total Residual Chlorine QC Concentrate, Certified Reference Material

Total Residual Chlorine QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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EPA method 501 Trihalomethane Mixture, Restek

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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Amenable and Total Cyanide QC Concentrate, Certified Reference Material

Amenable and Total Cyanide QC Concentrate, Certified Reference Material

Supplier: SPEX CERTIPREP LLC

Meet or exceed performance criteria with QC samples.

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Canadian Drinking Water Phenoxyacid Herbicides Mix (11 Components), Restek

Supplier: Restek

Consists of 11 components, those are bromoxynil, 2,4-d, dicamba, 2,4-dichlorophenol, diclofop methyl, dinoseb, pentachlorophenol, picloram, 2,4,5-t, 2,3,4,6-tetrachlorophenol and 2,4,6-trichlorophenol.

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EPA Method 8310 Quality Control Check (18 Components), Restek

Supplier: Restek

The compund consists of components such as, acenaphthene (100 μg/ml), acenaphthylene (100 μg/ml), anthracene (100 μg/ml), benz(a)anthracene (10 μg/ml), benzo(a)pyrene (10 μg/ml), benzo(b)fluoranthene (10 μg/ml), benzo(ghi)perylene (10 μg/ml), benzo(k)fluoranthene (5 μg/ml), chrysene (10 μg/ml), dibenz(a,h)anthracene (10 μg/ml), fluoranthene (10 μg/ml), fluorene (100 μg/ml), indeno(1,2,3-cd)pyrene (10 μg/ml), 1-methylnaphthalene (100 μg/ml), 2-methylnaphthalene (100 μg/ml), naphthalene (100 μg/ml), phenanthrene (100 μg/ml), pyrene (10 μg/ml).

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Phytocannabinoid Mixture 3 (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in a methanol solution intended for HPLC-UV or LC- or GC-MS

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W-18 (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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6-Acetylmorphine (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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Cannabigerol (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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Zopiclone (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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Secobarbital (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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AM2201 (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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Benzoylecgonine (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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N-Desmethylflunitrazepam (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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Δ9-THC (CRM), Cayman Chemical

Supplier: Cayman Chemical Company

A Certified Reference Material

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8240 Alcohols Mix (5 components), Restek

8240 Alcohols Mix (5 components), Restek

Supplier: Restek

Mix contains: Allyl alcohol (2-propen-1-ol) (107-18-6); 2-Chloroethanol (107-07-3); Ethanol (64-17-5); Isobutyl alcohol (78-83-1); Propargyl alcohol (107-19-7).

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EPA Method 501 Trihalomethane Mixture, Ultra Scientific

EPA Method 501 Trihalomethane Mixture, Ultra Scientific

Supplier: Ultra Scientific

Mixture is packaged in methyl alcohol in 1 mL ampules.

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