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.
Supelco® Organic Reference Standard, 1,2,3,4-Tetrahydronaphthalene
Supplier: Merck
Organic Standard, 1,2,3,4-Tetrahydronaphthalene
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Atomic absorption Spectrocopy (AAS) standards, multi-element in oil, Certipur®, Supelco®
Supplier: Merck
Standards dissolved in oil are ready-to-use calibration standards for the analysis of non-aqueous matrices.
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Calibration standards for Turbiquant®, Supelco®
Supplier: Merck
Turbidity Standard, Calibration set for Turbiquant® 1100 IR/1100 T, 0,02 NTU, 10,0 NTU, 1000 NTU
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PipeCheck standards for checking volumes of pipettes by photometry, Spectroquant®, Supelco®
Supplier: Merck
Check solutions (4x6 cells) and reference solutions (4 cells ) for checking the volume of pipettes Spectroquant®, Spectroquant®
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Cesium standard solution, 1000 mg/L Cs in 0,5 M nitric acid (from CsNO₃) Certipur® standard for AAS, Supelco®
Supplier: Merck
Cesium Standard, 1000 mg/L, Certipur®, Supelco®, Cesium, Matrix: 0,5 M HNO₃, Application: AAS standards
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Platinum standard solution, 1000 mg/L Pt in 2 M hydrochloric acid (from H₂PtCl₆) Certipur® standard for AAS, Supelco®
Supplier: Merck
Platinum Standard, 1000 mg/L, Certipur®, Supelco®, Platinum, Matrix: 2 M HCl, Application: AAS standards
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Bismuth standard solution, 1000 mg/L Bi in dilute nitric acid (from Bi(NO₃)₃) Certipur® standard for ICP, Supelco®
Supplier: Merck
Bismuth Standard, 1000 mg/L, Certipur®, Supelco®, Bismuth, Matrix: Nitric acid dil., Application: ICP standards
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Sulphur standard solution, 1000 mg/L S in water (from H₂SO₄) Certipur® standard for ICP, Supelco®
Supplier: Merck
Sulphur Standard, 1000 mg/L, Certipur®, Supelco®, Sulphur, Matrix: H₂O, Application: ICP standards
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ASTM® D5441 MTBE contaminants (high) mix A, certified reference material, Supelco®
Supplier: Merck
ASTM(R) D5441 MTBE Contaminants (high) Mix A, Supelco®, 1 % (w/w) each component in methyl tert-butyl ether
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ASTM® D5441 MTBE contaminants (low) mix B, analytical standard, Supelco®
Supplier: Merck
ASTM(R) D5441 MTBE Contaminants (low) Mix B, Supelco®, 0.1 % (w/w) each component in methyl tert-butyl ether
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Organic reference standard, Chloroethylene 200 µg/ml in methanol, Supelco®
Supplier: Merck
Organic Standard, Chloroethylene 200 µg/ml in methanol, Pack type: Glass bottle for solids
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Organic reference standard, Chloroethylene 2000 µg/ml in methanol, Supelco®
Supplier: Merck
Organic Standard, Chloroethylene 2,000 µg/ml in methanol, Pack type: Glass bottle for solids
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Supelco® PESTANAL® Organic Reference Standard, Bentranil
Supplier: Merck
Organic Standard, Bentranil
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Supelco® Organic Reference Standard, Methyl stearate
Supplier: Merck
Organic Standard, Methyl stearate
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Supelco® PESTANAL® Organic Reference Standard, Ioxynil-Methyl
Supplier: Merck
Organic Standard, Ioxynil-methyl
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Supelco® PESTANAL® Organic Reference Standard, Imazaquin
Supplier: Merck
Organic Standard, Imazaquin
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Supplier: Merck
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