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sklademVydáno: 1985
ISO 6667:1985
ISO 6667:1985-Green coffee — Determination of proportion of insect-damaged beans
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Označení normy: | ISO 6667:1985 |
Počet stran: | 12 |
Vydání: | 1 |
Vydáno: | 1985 |
DESCRIPTION
ISO 6667:1985
The method consists in visual examination of the external surface of beans to identify those which have been damaged by insects. Determination of the observed proportion, as a percentage, of damaged beans and, if possible, identification of the species of insect responible to damage. From the proportion of damaged beans thus determined: estimation of the confidence limits of the true proportion of damaged beans for a given probability; estimation of the probability that the true proportion of damaged beans will not exceed a given value. An annex A shows illustrations of damaged beans. An annex B describes a test for homogenity of the laboratory sample.