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Reference filter for testing to stray light according to Ph. Eur.
Reference filter for testing the photometric accuracy.
Liquid filter for testing stray light.
Liquid filter for testing stray light, according to Ph. Eur.
Bel-Art™ SP Scienceware™ Klett™ Colorimeter Filters are glass filters for colorimetric and turbidimetric analyses to obtain readings on the Klett™ scale.