Standardy

Dodržování norem je nezbytné v každém odvětví, protože standardy jsou klíčové pro pravidelné ověřování přesnosti jednotlivých zařízení. Porovnáním s referenčními hodnotami výstupní měření odhalí přítomné chyby a upozorní personál, že jsou nutné úpravy. Jakmile jsou nastavení manuálních nebo automatických přístrojů vrácena na nulu, obnovené podmínky zajistí optimální pracovní výkon. Kalibrace s koncentrovanými standardy eliminuje možnost, že změny prostředí způsobí chybný výpočet přístroje v okamžicích, kdy je přesnost nejdůležitější.

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Lithium 1.000 mg/l v zřed. kyselině dusičné AVS TITRINORM standard pro AAS

Supplier: VWR Chemicals

Standardy - lithium, 1000 mg/L, VWR® AVS TITRINORM, Lithium, Matrice: 2% HNO₃, Aplikace: Standardy AAS

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Paladium 1.000 mg/l v 10% kyselině chlorovodíkové (from Pd) ARISTAR® standard pro ICP

Supplier: VWR Chemicals

Pd in HCl 10%.

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VWR®, COD calibration standards

Supplier: VWR Chemicals

These standards are ideal to use as control standards for COD measurements to verify that correct analysis for COD has taken place.

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cín 1.000 mg/l v zřed. kyselině dusičné se stopami kyseliny fluorovodíkové (from Sn) ARISTAR® standard pro ICP

Supplier: VWR Chemicals

Sn in HNO₃ tr. HF.

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VWR®, Redox (ORP) Standards

Supplier: VWR Chemicals

Avantor offers a wide range of REDOX (ORP) standards, which are produced from high quality reagents.These reference materials can be used as control standards to check the functionality of both the elextrodes and the measuring instruments. The values are temperature dependent, so it is important to control the environment of the measurement. A table of temperatue and corresponding Redox value is available on both the label and the batch specific certificate.

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Kadmium 1.000 mg/l Cd in dil. kyselině dusičné (from Cd) ARISTAR® standard pro ICP

Supplier: VWR Chemicals

Cd in HNO₃ 2 to 5%.

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$VWR®, Sucrose (Brix) standards, stabilised solutions for refractometry$

VWR®, Sucrose (Brix) standards, stabilised solutions for refractometry

Supplier: VWR Chemicals

A range of Brix/refractive index standards for ease of use when calibrating all types of refractometers.

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VWR® PESTINORM®, Methanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR®, Flash point reference standard, Pensky Martens

Supplier: VWR Chemicals

PMCC flash point standards are tested and certified in accordance with ASTM D93 'Standard Test Method for Flash Point by Pensky Martens Closed Cup Tester - Procedure A'

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VWR® PESTINORM®, 2-Propanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® ARISTAR®, Boron Standard Solution, 1000 mg/L B in Ammonium Hydroxide Solution (max. 1%) (from B(OH₃)), Standard for ICP

Supplier: VWR Chemicals

B(OH)₃ in H₂O tr.NH₄OH.

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VWR® PESTINORM®, iso-Butyl Methyl Ketone, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® ARISTAR®, Multi-Element Standards, Anionic for Ion Chromatography

Supplier: VWR Chemicals

Ion chromatography anion multi-element standard solution I, 1000 mg/L, VWR® ARISTAR®, Matrice: H₂O, Obsahy: F, Br, PO₄ in water, Aplikace: Standardy iontové chromatografie

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VWR® ARISTAR®, Selenium Standard Solutions for ICP-MS

Supplier: VWR Chemicals

Standardy - selen, 1000 mg/L, VWR® ARISTAR®, Selenium, Matrice: 2-5% HNO₃, Aplikace: Stndardy ICP-MS

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VWR®, Mineral Oil Rotational viscosity standards

Supplier: VWR Chemicals

Mineral Oil Rotational viscosity standards are specifically formulated for use with rotational viscometers and are dual-certified to ISO 17025 and ISO 17034 under UKAS.

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Víceprvkový standard kontroly kvality pro ICP, , ARISTAR®

Supplier: VWR Chemicals

Standardy víceprvkové, ICP multi-element standard solution XIII, 15 elements, 500 mg/L Al; 250 mg/L V; 100 mg/L As, Be, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn; 25 mg/L Cd, Se; 5 mg/L Hg;, VWR® ARISTAR®, Matrice: 5% HNO₃, Aplikace: Standardy ICP