DURAN® volumetric flasks, class A, brown, CoC and batch certificate, white print, ¥ 11738,53

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DURAN® Volumetric Flask, class A, brown, batch certificate, 5 ml DURAN® Volumetric Flasks are available in two different accuracy classes: A and B. The two classes differ in the tolerances of the flasks. The two classes differ in the tolerances of the volumes. A is the highest accuracy class, while the error limit of class B is about twice that of class A. The clear DURAN® volumetric flasks with accuracy class „A“ have blue printing, the brown-coloured ones are printed in white. Volumetric flasks that have accuracy class A and a batch number are supplied with a batch certificate. This certificate documents the mean value resulting from the measurement of the given batch, the standard deviation and the date of issue. The batch certificates are also available online. The batch number consists of four digits. The first two numbers indicate the year of production, the following two the batch, e.g.: 18.01. Special features and benefits: Conforms to ISO 1042 Manufactured from borosilicate glass 3.3 UV protection through external colour application; long shelf life and good chemical resistance of the brown colouring. The purely external brown colouring ensures unchanged DURAN® properties inside the volumetric flask. Highest possible precision in volume measurement and high-quality process stability Very accurate determination and measurement of volumes due to precise processing and scaling Supplied with ergonomic polyethylene stopper for fast and safe opening and closing Adjustment to sprue („In“) at + 20 °C reference temperature Tolerances for volume correspond to accuracy class A With scribed ring mark Burnt-in and therefore permanently durable white printed image Application: Storage and transport of light-sensitive materials, measurement of liquid quantities, dilution of solutions, mixing of several components, dimensional analysis, volumetry, To ensure longevity of the volumetric instruments and to exclude possible changes in volume, these glass products should not be heated above + 250 °C in the drying cabinet or steriliser. DURAN® Volumetric Flask, Class A, amber, CoC and batch certificate, white print

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Duran/DWK Life Sciences

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