This International Standard specifies a polarimetric method for the determination of the starch content of native starch, with the exception of starch with high amylose content.
It is not applicable to modified or pregelatinized (water-soluble) starch.
BS EN ISO 10520:1998 history
1998BS EN ISO 10520:1998 Native starch - Determination of starch content - Ewers polarimetric method