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.
Elemental analysis standards, portland cement type Ⅲ, NIST-1887B
Supplier: PROMOCHEM
These are intended primarily for the evaluation and calibration of methods for analysis of cements and materials of similar matrix.
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Standards for water pollution QC check, inorganics, VHG
Supplier: PROMOCHEM
This solution is intended for use as a quality control check for methods related to measurements of inorganic materials includes conductivity, alkalinity as CaCO₃, chloride, fluoride, nitrite and nitrate, sulphate, potassium, sodium, total dissolved solids and many more.
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Boric acid isotopic standard, NIST-951A
Supplier: PROMOCHEM
This standard reference material is intended for use as an isotopic reference material for the calibration of mass spectrometers. The material consists of highly purified boric acid of high homogeneity.
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Organic reference standard, 2,2',3,4',5,5'-Hexachlorobiphenyl (PCB No. 146) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4',5,5'-Hexachlorobiphenyl (PCB No. 146) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,4',6,6'-Hexachlorobiphenyl (PCB No. 150) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4',6,6'-Hexachlorobiphenyl (PCB No. 150) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,4,4',5,5'-Heptachlorobiphenyl (PCB No. 180) 100 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4,4',5,5'-Heptachlorobiphenyl (PCB No. 180) 100 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,3',4,5,5'-Heptachlorobiphenyl (PCB No. 172) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,5,5'-Heptachlorobiphenyl (PCB No. 172) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,4',5,6,6'-Heptachlorobiphenyl (PCB No. 188) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4',5,6,6'-Heptachlorobiphenyl (PCB No. 188) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,3',4,5,6,6'-Octachlorobiphenyl (PCB No. 199) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,5,6,6'-Octachlorobiphenyl (PCB No. 199) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,3',4,4',6-Heptachlorobiphenyl (PCB No. 171) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,4',6-Heptachlorobiphenyl (PCB No. 171) 35 µg/ml in isooctane, Pack type: Glass bottle
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Elemental analysis standards for particle count analysis, VHG
Supplier: PROMOCHEM
PTP sample for particle count analysis, VHG, 125 ml, VHG
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Tomato leaves - trace elements, NIST-1573A
Supplier: PROMOCHEM
This standard material is intended for use in evaluating the reliability of analytical methods for the determination of major, minor, and trace elements in botanical materials, agricultural food products, and materials of similar matrix.
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Petroleum standards, heavy mineral oils, CRM
Supplier: PROMOCHEM
This matrix material solution is intended for use as a diluent for other metallo-organic standards.
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Organic reference standard, 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (PCB No. 196) 100 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (PCB No. 196) 100 µg/ml in isooctane, Pack type: Glass bottle
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Sulfuric Acid TS
Supplier: CUSTOM MADE CHEMICALS LAB
The standard is specially intended for use in testing Japanese pharmacopoeia and monographs. This solution was produced according of Japanese pharmacopoeia specifications using reagent quality components and water meeting the Japanese pharmacopoeia monograph requirement for purified water.
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Hydrazine Sulphate Solution
Supplier: CUSTOM MADE CHEMICALS LAB
Hydrazine sulphate solution, : N/A
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Soil and sediment reference material for dioxin, PCB, pesticide, and other organic contaminant levels in soil
Supplier: PROMOCHEM
Heavily contaminated sediment reference material , : N/A
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Organic reference standards, β-zearalenol (NMIA P1796)
Supplier: PROMOCHEM
The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by HPLC with UV detection, Karl Fischer analysis, thermogravimetric analysis and 1H NMR is 99,3 ± 1,3% mass fraction, (95% coverage interval). Supporting evidence is provided by elemental microanalysis.
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Wavelength Calibration Solution for ICP-OES
Supplier: CUSTOM MADE CHEMICALS LAB
500 ml solution contains 50 mg/L Al, As, Ba,Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn and 500 mg/L K in 5% HNO₃.
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Elemental analysis standards, phosphate rock, western, NIST-694
Supplier: PROMOCHEM
This standard material is intended to use in validating analytical methods and in calibrating instruments used in the analysis of phosphate rock, fertilisers and similar materials.
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62,4 mg/ml CuSO₄.5H₂O
Supplier: CPACHEM
The colour standard is specially intended for use in testing ChP and monographs. This solution was produced according to the specifications using ChP reagent quality components and water meeting the ChP monograph requirement for purified water.
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Low alloy steel standard
Supplier: PROMOCHEM
This reference material is intended for use in the evaluation of chemical and instrumental analysis and in calibration of those methods.
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Potassium Dichromate Solution for Absorbance Control
Supplier: CPACHEM
2×10 ml Potassium dichromate solution for absorbance control 235 - 350 nm and 6×10 ml
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Metal alloy standards, gray cast iron, CRM
Supplier: PROMOCHEM
Grey cast iron (carbon + sulfur), NIST-334
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Estuarine sediment standard - metals, NIST-1646A
Supplier: PROMOCHEM
NIST-1646A, estuarine sediment - metals, : N/A
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Organic reference standards, fipronil sulphone (NMIA P1731)
Supplier: PROMOCHEM
Purity estimate obtained from a combination of traditional analytical techniques is 99,3 ± 0,6% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, and Karl Fischer analysis. Supporting evidence is provided by elemental microanalysis and 1H NMR analysis.
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Elemental analysis standards, PTP sample of oils, VHG
Supplier: PROMOCHEM
The PTP has been specially designed for analytical laboratories that analyse new and used oils for metals, sulphur, viscosity and particle count.
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Reference materials, base number standards, in hydrocarbon oil
Supplier: PROMOCHEM
These reference materials are intended for use in the determination of base number (AN) in petroleum products in accordance with ASTM D2896/IP 276 (by potentiometric perchloric acid titration) or ASTM D4739 (by potentiometric titration).
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Elemental analysis standards, flint clay - constituent elements, NIST-97B
Supplier: PROMOCHEM
This standard reference material is intended for use in the determination of constituent elements in clay and material of similar matrix. Powdered clay was air-dried, ball-milled and blended to ensure homogeneity.
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Reference standards, waste water - trace metals
Supplier: PROMOCHEM
This Reference material is intended for daily use in conjunction with measurement of elements in wastewaters. The water solution contains 13 elements with concentrations traceable to ultra pure metals or stoichiometrically well-defined substances.