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Standards

19,078  results were found
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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Description:   Carbamate/Carbamxyloxime Pesticides Drinking Water QC Sample, One 2 mL flame sealded ampule yields up to 2 L after dilution, Appearance: Solution in bottle, Volume: 2ml
Catalog Number: SX707
Supplier: SPEX CERTIPREP LLC



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Description:   Chloroform Single-Component Organic Standard, Concentration: 1,000 ug/mL (1,000 ppm), Cas Number: 67-66-3 in Methanol-P&T, Volume: 1 ml
Catalog Number: SXS-865
Supplier: SPEX CERTIPREP LLC



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Description:   Dibenzo(a,e)pyrene Single-Component Organic Standard, Concentration: 1,000 ug/mL (1,000 ppm), CAS Number: 192-65-4 in Methylene Chloride:Benzene (50:50), Size: 1mL
Catalog Number: SXS-1200
Supplier: SPEX CERTIPREP LLC



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Description:   Trace Metals Drinking Water QC Sample, 15 mL vial, yields up to 2 L after dilution, Use with ICP-OES and AA methods, AppearanceSolution in Bottle
Catalog Number: SX697
Supplier: SPEX CERTIPREP LLC



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Description:   Mercury Wastewater QC Sample, 15 mL vial, yields up to 1 L after dilution, Appearance: Solution in Bottle
Catalog Number: SX514
Supplier: SPEX CERTIPREP LLC



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Description:   alpha-Terpineol Single-Component Organic Standard, Concentration: 1,000 ug/ml (1000 ppm), Cas number: 98-55-5 in Methanol-P&T, Appearance: Solution in Ampule, Size: 1 ml
Catalog Number: SXS-4145
Supplier: SPEX CERTIPREP LLC



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Description:   Quinoline Single-Component Organic Standard, Concentration: 1,000 ug/mL (1,000 ppm), Cas Number: 91-22-5 in Methanol-P&T, Volume: 1 ml
Catalog Number: SXS-3245
Supplier: SPEX CERTIPREP LLC



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Description:   Volatiles Main Mix, Non-Gases, for US EPA Methods 8260 and 524.2, Concentration: 2,000 ug/mL (2,000 ppm) in Methanol-P&T, 3 pack, 1.5 mL, Appearance: Solution in Ampule
Catalog Number: SXECS-B-033
Supplier: SPEX CERTIPREP LLC



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Description:   Performance Check Solution for US EPA Method 508 in Methyl Tertiary-Butyl Ether:Ethyl Acetate, Size: 1mL
Catalog Number: SX5081-PC
Supplier: SPEX CERTIPREP LLC



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Description:   EDB/DBCP/TCP Drinking Water QC Sample, 2 mL, One 2 mL flame-sealed ampule yields in excess of 200 mL after dilution, AppearanceSolution in Bottle
Catalog Number: SX706
Supplier: SPEX CERTIPREP LLC



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Description:   Calibration standard Rxi Test Mix (250 ppm), 8 components, Concentration: 250 ug/mL each in toluene, Storage: 0 deg C or colder, Shelf Life: 3 months, Volume: 1 mL/ampule
Catalog Number: 75835-372
Supplier: Restek



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Description:   Standard SV Mix, Chyrsene, Concentration: 1000Ug/ml in Acetone, CAS no: 218-01-9, Shelf life: 6 months, Storage: 25 deg C nominal, Size: 1ml/Ampule
Catalog Number: 75835-640
Supplier: Restek



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Description:   PCB Screening Standard for US EPA Method 8270, Concentration: 5,000 ug/mL (5,000 ppm), CAS Number: 2051-24-3 in Toluene, Size: 1mL
Catalog Number: SXDCBP-XH
Supplier: SPEX CERTIPREP LLC



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Description:   GC Multiresidue Pesticide Standard No.7 (10 components) Herbicide Methyl Esters, Concentration in solvents: 100 ug/mL in toluene, Volume: 1 mL/ampul
Catalog Number: 75835-058
Supplier: Restek



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Description:   Internal Surrogate 8141, NPD detector, 4-Chloro-3-nitrobenzotrifluoride, Cas number: 121-17-5, Concentration: 1,000 ug/mL in acetone, Minimum shelf life: 6 months, Volume: 1ml/ampule
Catalog Number: 75834-920
Supplier: Restek



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Description:   Atrazine Single-Component Organic Standard, Concentration: 1,000 ug/mL (1,000 ppm), Cas Number: 1912-24-9 in Acetone, Volume: 1 ml
Catalog Number: SXS-365
Supplier: SPEX CERTIPREP LLC



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Catalog Number: SXUSP-561-G
Supplier: SPEX CERTIPREP LLC



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Description:   tau-Fluvalinate Single-Component Organic Standard, Concentration: 1,000 ug/ml (1000 ppm), Cas number: 102851-06-9 in Acetone, Appearance: Solution in Ampule, Size: 1 ml
Catalog Number: SXS-4161
Supplier: SPEX CERTIPREP LLC



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Catalog Number: 76544-342
Supplier: Cayman Chemical Company



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Description:   Calibration standard 2-Ethoxyethanol, USB stock solution, CAS no:110-80-5, Concentration: 0.8 mg/mL in dimethyl sulfoxide, Storage: 0 deg C or colder, Shelf Life: 6 months, Volume: 1 mL/ampule
Catalog Number: 75835-494
Supplier: Restek



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Catalog Number: 76544-262
Supplier: Cayman Chemical Company



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Catalog Number: 77454-926
Supplier: TLC PHARMACEUTICAL STANDARD LTD


New Product

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Catalog Number: 77449-272
Supplier: TLC PHARMACEUTICAL STANDARD LTD


New Product

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Description:   AMCO CLEAR® Turbidity Standard
Catalog Number: 71002-448
Supplier: GFS Chemicals


Small Business Enterprise

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Description:   Standard Organophosphorus Pesticide Mix, (16 components), European Formulation, Concentration in Solvent: In acetone Min Shelf Life:3 months, Volume: 1 mL/ampul
Catalog Number: 75834-966
Supplier: Restek



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Certificate Certificates    
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Description:   Meets EPA linear calibration recommendations. Includes 125mL bottles of the following NTU values: 20, 40, 60, 80 and 100.
Catalog Number: 66115-052
Supplier: GFS Chemicals


Small Business Enterprise

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Description:   Standard Alternate Boiling Point/Carbon Number Distribution Marker Stock, 9 components, Concentration: 200 ug/mL each in pentane, Minimum shelf life: 6 months, Volume: 1 mL/ampul
Catalog Number: 75835-734
Supplier: Restek



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Description:   Nutrients in Soil, QC Sample, soil sample in a screw cap bottle, Appearance: Solution in bottle, Volume: 40g
Catalog Number: SX542
Supplier: SPEX CERTIPREP LLC



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Description:   Halomethanes Drinking Water QC Sample, yields in excess of 200 mL after dilution, Appearance: Solution in bottle, Volume: 2 mL ampule
Catalog Number: SX702
Supplier: SPEX CERTIPREP LLC



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Description:   Scott/Air Liquide Transportable Pure Gases/Mixtures, Pressure: 300 psig (21 bar), for purging or calibrating to multicomponent mixes, Carbon monoxide, carbon dioxide, hydrogen, and oxygen in nitrogen (1% each), Shelf Life: 3yr, Size: 14 L
Catalog Number: 75795-232
Supplier: Restek



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MSDS SDS    
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Description:   Calibration standard Sulfolane, USB stock solution, CAS no:126-33-0, Concentration: 0.8 mg/mL in dimethyl sulfoxide, Storage: 0 deg C or colder, Shelf Life: 6 months, Volume: 1 mL/ampule
Catalog Number: 75835-960
Supplier: Restek



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Description:   Calibration standard Amine 900 Test Mix, 8 components, Concentration: In methanol:methylene chloride (50:50), Storage: 0 deg C or colder, Shelf Life: 1 months, Volume: 1 mL/ampule
Catalog Number: 75835-366
Supplier: Restek



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