Hellma^® calibration standard, neutral density glass filter

SB.32

Secondary calibration standard for absorbance accuracy of Spectrophotometers in the visible range. Certified.
Neutral density glass filter (nominal absorbance: 0.5 at 440; 465; 546,1; 590; 635 nm)

The most current version of Hellma's handling guidelines for calibration standards can be accessed on the Hellma Analytics web site.

Hellma is a registered trademark of Hellma GmbH

100

certified reference material

Hellma 666-F3

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