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 re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

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 re-established 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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Catalog Number: (CRM05583-100MG)
Supplier: Merck
Description: Fenobucarb may be used as reference material for the following:
UOM: 1 * 100 mg


Catalog Number: (36824-25MG)
Supplier: Merck
Description: Organic Standard, Haloxyfop-P
UOM: 1 * 25 mg


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Catalog Number: (CRM06783-25MG)
Supplier: Merck
Description: Organic Standard, Chlorfluazuron
UOM: 1 * 25 mg


Catalog Number: (CRM66004-100MG)
Supplier: Merck
Description: Organic Standard, Folpet
UOM: 1 * 100 mg


Catalog Number: (CRM05148-10MG)
Supplier: Merck
Description: Organic Standard, Ethiofencarb-sulfoxide
UOM: 1 * 10 mg


Catalog Number: (CRM72839-50MG)
Supplier: Merck
Description: Organic Standard, EPN
UOM: 1 * 50 mg


Catalog Number: (79323-50MG)
Supplier: Merck
Description: Organic Standard, Trietazine
UOM: 1 * 50 mg


Catalog Number: (38273-50MG)
Supplier: Merck
Description: Organic Standard, Prothioconazole
UOM: 1 * 50 mg


Catalog Number: (38117-50MG)
Supplier: Merck
Description: Mepiquat chloride is a synthetic plant growth regulator that is absorbed by the foliage and translocated throughout the plant. It is widely used to manipulate plant structure and helps to combat excessive vegetative growth which if left uncontrolled can lead to undesirable fruit shed boll rot and yield reductions. Mepiquat chloride inhibits gibberellic acid synthesis thus reducing cell enlargement and cell division rate. Application of mepiquat chloride in cotton results in a more compact plant caused by shortened internode elongation reduced main stem nodes and decreased leaf expansion and leaf area. Mepiquat chloride is approved for use in European Union (EU) following Regulation (EC) No 1107/2009 (repealing Directive 91/414/EEC). The maximum residue level (MRL) for Mepiquat (sum of mepiquat and its salts expressed as mepiquat chloride) is established from 0,02 to 4 mg/kg for many plant-based products and 40 mg/kg for linseed mustard sunflower and poppy seeds. For products of animal origin the MRL is set from 0,05 to 0,8 mg/kg as per Reg. (EU) 2021/976. Mepiquat has to be monitored in the Multiannual Control Programme for Pesticides Residues (MACP) run within the EU and EFTA in/on products of plant origin.
UOM: 1 * 50 mg


Catalog Number: (39337-10MG)
Supplier: Merck
Description: Sethoxydim is a selective systemic and cyclohexanedione oxime herbicide absorbed mainly by foliage and to a lesser extent by roots. It is an acetyl CoA carboxylase (ACCase) inhibitor which inhibits the incorporation of acetate into fatty acids and interferes with the formation of phospholipids used in building new membranes. It is used to control annual and perennial grass weeds (except <i>Poa spp.</i>) in broad-leaved crops including cotton oilseed rape soybeans sugar beets fodder beets sunflowers spinach potatoes tobacco peanuts strawberries alfalfa flax and vegetables. Sethoxydim is not approved for use in the European Union (EU) as a plant protection agent following Regulation (EC) No. 1107/2009 and repealing Directive 91/414/EEC. But maximum residue levels of 0,05 to 10 mg/kg are allowed for the presence of sethoxydim expressed as a sum of sethoxydim and clethodim including their degradation products in products of plant and animal origin according to the EU Reg. No 839/2008.
UOM: 1 * 10 mg


Catalog Number: (90662-50MG)
Supplier: Merck
Description: Organic Standard, Trifluralin
UOM: 1 * 50 mg


Catalog Number: (19039-50MG)
Supplier: Merck
Description: Organic Standard, Triflusulfuron-methyl
UOM: 1 * 50 mg


Catalog Number: (19936-10MG)
Supplier: Merck
Description: Organic Standard, ʟ-Citrulline
UOM: 1 * 10 mg


Catalog Number: (07481-50MG)
Supplier: Merck
Description: Organic Standard, Adipoyl-ʟ-carnitine lithium salt
UOM: 1 * 50 mg


Catalog Number: (89346-50MG)
Supplier: Merck
Description: Organic Standard, Metconazole
UOM: 1 * 50 mg


Catalog Number: (41397-100MG)
Supplier: Merck
Description: Tebutam CRM may also be used as given below:
Optimisation of sample extraction based on QuEChERS and dispersive-solid-phase extraction (d-SPE) clean-up for the multi-residue analysis of 120 pesticides 16 polycyclic aromatic hydrocarbons and 22 polychlorinated biphenyls by liquid and gas chromatography coupled with tandem mass spectrometry (MS/MS)
Evaluation of 250 pesticide residues extracted by QuEChERS method from 103 processed fruit samples using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS)
Determination of 90 pesticides 16 polycyclic aromatic hydrocarbons and 22 polychlorinated biphenyls in honey samples by using QuEChERS combined with dispersive solid-phase extraction (SPME) for sample pre-treatment and liquid chromatography-triple-quadrupole tandem mass spectrometry and gas chromatography-ion-trap tandem mass spectrometry for quantitation
Screening and quantification of 569 pesticides in honeysuckle samples by a combination of ultrahigh-performance liquid chromatography (UHPLC) and quadrupole-Orbitrap high-resolution mass spectrometry
Simultaneous determination of 134 pesticide residues in tea samples using d-SPE extraction with a multi-functional filter (MFF) followed by ultra-high performance liquid chromatography (UPLC) and quadrupole time-of-flight mass spectrometry (TOF-MS).
UOM: 1 * 100 mg


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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on +353 1 88 22222.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on +353 1 88 22222.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at eurega_services@eu.vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service on +353 1 8822222.
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