ISO-7952-1994.pdf
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1、INTERNATIONAL STANDARD ISO 7952 First edition 1994-1 O-l 5 Fruits, vegetables and derived products - Determination of topper content - Method using flame atomic absorption spectrometry Fruits, Iegumes et produits dkr-iV is the topper content of the blank Solution, expressed in milligrams per litre,
2、read from the calibration graph. If the test Solution was diluted, take the dilution factor into account in the calculation. If it is desired to express the topper content of the dry product, take the moisture content of the Sample into account in the calculation. 8.2 Liquid wiscous products, and in
3、homogeneous, pasty, solid and dehydrated products The topper content of the Sample, expressed in milli- grams per kilogram of product, is equal to (Cl - C2) mo x 50 where is the topper content of the test Solution, expressed in milligrams per litre, read from the calibration graph; is the topper con
4、tent of the blank Solution, expressed in milligrams per litre, read from the calibration graph; mo is the mass, in grams, of the test Portion. If the test Solution was diluted, take the dilution factor into account in the calculation. If it is desired to express the topper content of the dry product
5、, take the moisture content of the Sample into account in the calculation. 9 Repeatability The absolute differente between two independent test results, obtained using the Same method on identical test material in the Same laboratory by the Same Operator using the same equipment within a short inter
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