该方法的依据是通过ISO 948规定的方法获得的实验室样品。测定原理包括研磨之前已混合的实验室样品，以获得适用于相关香料或调味品的国际标准中规定尺寸的颗粒，或者，如果没有规定，则获得尺寸约为1 mm的颗粒。

Basis for this method is the laboratory sample obtained by the method specified in ISO 948. The principle of determination consists in grinding the laboratory sample, which has been previously mixed, to obtain particles of the size specified in the International Standard appropriate to the spice or condiment concerned or, if not so specified, to obtain particles of size approximately 1 mm.