ISO/TC 34 Lebensmittelerzeugnisse,
ISO/TC 34 Food products,
ISO/TC 34 Produits alimentaires,
ISO Internationale Organisation für Normung,
ISO International Organization for Standardization,
ISO Organisation Internationale de Normalisation
ISO 6667
: Green coffee; Determination of proportion of insect-damaged beans
- [1985-11-00]
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Medientyp:
Norm
Titel:
ISO 6667
:
Green coffee; Determination of proportion of insect-damaged beans
Weitere Titel:
Grüner Kaffee; Bestimmung des Anteils an Bohnen mit Insektenschäden
Café vert; Détermination de la proportion de fèves endommagées par les insectes
Beschreibung:
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.