Prior to every analysis, use refractive index standards to check refractometer precision in evaluating sugar content. The known concentrations will verify a zero baseline reading so subsequent readings can be compared correctly for production consistency. While sucrose solutions evaluate devices that do not require a controlled temperature, calibration oils test instruments that involve specific levels. Refractive index standards guarantee that customers receive accurate Brix scale reports from the food industry.

Standard per indice di rifrazione

Supplier: VWR Chemicals

Gli standard per indice di rifrazione sono verificati utilizzando un rifrattometro calibrato e a temperatura controllata.

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Standard di zucchero Brix per rifrattometri, CertiPUR®

Supplier: Merck

Standard per indici di rifrazione tracciabili a SRM da NIST e PTB.

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Standard per indice di rifrazione secondo Ph. Eur., Supelco®

Supplier: Merck

Nella farmacopea europea vengono indicati numerosi materiali di riferimento per i test dei rifrattometri (vedere Ph. Eur. 2.2.6). In questo caso vengono prescritte le seguenti sostanze: trimetilpentano, toluene e metilnaftalene. Il test dei dispositivi deve essere eseguito prima di ogni misurazione. I materiali di riferimento Merck sono disponibili da subito. Nella vasta documentazione è possibile individuare lo standard idoneo per qualsiasi settore. Viene coperto l'intervallo da 1,3915 a 1,6160. Indice di rifrazione (20 °C).

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Olii e fluidi di calibrazione per rifrattometri

Supplier: BELLINGHAM STANLEY

Gamma di liquidi per la verifica/calibrazione dei limiti inferiore e superiore dell'indice di rifrazione e del corrispondente intervallo Brix.

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$VWR®, Refractive index standard kits for calibration according to Ph. Eur. 2.2.6$

VWR®, Refractive index standard kits for calibration according to Ph. Eur. 2.2.6

Supplier: VWR Chemicals

These standards are for the calibration of refractometers prior to use.

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$VWR®, Multi-Parameter Refractive Index and Density Certified Reference Material At 15, 20 and 25 °C$

VWR®, Multi-Parameter Refractive Index and Density Certified Reference Material At 15, 20 and 25 °C

Supplier: VWR Chemicals

The Refractive Index and Density Certified Reference Materials provide a flexible, cost-effective and efficient solution to any laboratory calibrating and/or verifying refractive index and density measurements – all from a single material.

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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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$VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C$

VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C

Supplier: VWR Chemicals

Refractive index Certified Reference Materials (CRMs) are ideal for verification and calibration of temperature controlled refractometers, with each CRM providing certified values for refractive index measurements at 20, 25 and 30 °C.

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Piastre di controllo al quarzo

Supplier: BELLINGHAM STANLEY

Quartz control plates for the calibration and verification of polarimeters. of optical and digital polarimeters and saccharimeters.

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Piastre per test per rifrattometri Eclipse

Supplier: BELLINGHAM STANLEY

Solid test plates offer a convenient method of calibration and verifying the performance of optical handheld and Abbe refractometers.

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$Sucrose solutions for refractometer calibration$

Sucrose solutions for refractometer calibration

Supplier: BELLINGHAM STANLEY

Sucrose solutions are an extremely easy to use medium for verifying and calibrating refractometers measuring in the Brix scale, as no special consideration is required when testing instruments at ambient temperature fitted with ATC.

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$Standard calibration liquids for refractometers$

Standard calibration liquids for refractometers

Supplier: Atago

Liquido standard LF, per rifrattometri portatili H-80, H-93 e rifrattometri digitali PR-2, PR-3, PR-200 e PR-300

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$Sucrose solutions for refractometers$

Sucrose solutions for refractometers

Supplier: Atago

Sucrose solutions are used for confirming the Brix measurements of refractometers.

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Refractive index (stabilised sucrose) standard

Supplier: REAGECON

Refractive index standards (stabilised sucrose) 1,39986 nD at 20 °C is a high quality product, with an extended shelf life to be used either as a calibrant or analytical control material for use in refractive index based methods for refractive index determination. This product can be used on any make or model of refractometer.

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Combined density and refractometry standards

Supplier: Mettler - Toledo

These combined reference standards are intended to reduce uncertainty, eliminate time-consuming and error prone sample transfer and facilitate fully automatic performance verification.