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NSG Precision Cells Announces the Release of High Quality Calibration Standards for UV-VIS Spectrophotometers
Date:7/23/2013

Farmingdale, NY (PRWEB) July 23, 2013

As the technology of spectrophotometers improves so does the techniques for calibrating them. Due to the high accuracy of results required, it is mandatory that spectrophotometers be calibrated regularly to maintain accurate results. Therefore, high quality calibration standards are a sine qua non.

Periodic verification of the performance of spectrophotometers is required by ISO 9000, GLP (Good Laboratory Practice), GMP (Good Manufacturing Practice), SOP (standard operating procedures in the pharmaceutical industry), EP, DAB, USP (pharmacopeias), and other applicable standards and regulations.

Periodic verification of performance of spectrophotometers typically includes testing the resolution, wavelength accuracy, photometric accuracy and stray light affect.

Traditionally, the calibration of spectrophotometers has been performed with a combination of liquid filters and solid-state filters. The solid-state filters only allowed the checking of photometric accuracy and wavelength accuracy usually within the 450 nm – 630 nm range.

The liquid filters allow checking the photometric accuracy, waveleng
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