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Old 06-25-2013, 12:15 AM   #1
Jul 2011
Montreal, Quebec
Posts: 503
Liked 15 Times on 15 Posts


I'm just curious as to how SRM is calculated for grains, with respect to my home-roasted specialty grain. I work in a laboratory and have access to spectrophotometers with 1cm wells.

I know that the asborbance is measured at 430nm, but what is the calculation to convert that absorbance to SRM or EBC?



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Old 06-25-2013, 01:50 AM   #2
Mar 2013
Posts: 244
Liked 34 Times on 23 Posts

SRM = 12.7 * D * A430

12.7 = constant
D = 1.0 for undiluted sample; 2.0 for 1:1 dilution; etc...
A430 = the absorbance at 430 nm in 1 cm

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