NF EN ISO 13366-2
Milk - Enumeration of somatic cells - Part 2 : guidance on the operation of fluoro-opto-electronic counters
ISO 13366-2|IDF 148-2:2006 gives guidance on the operating conditions for counting somatic cells, in both raw and chemically preserved milk, using fluoro-opto-electronic somatic cell counters in which either a rotating disc technique or flow cytometry is applied in the counting section. The guidance is applicable to the counting of somatic cells in raw cow milk. The guidance is also applicable to raw milk of other species, such as goat, sheep and buffalo, if the specified prerequisites are met.
ISO 13366-2|IDF 148-2:2006 gives guidance on the operating conditions for counting somatic cells, in both raw and chemically preserved milk, using fluoro-opto-electronic somatic cell counters in which either a rotating disc technique or flow cytometry is applied in the counting section.
The guidance is applicable to the counting of somatic cells in raw cow milk. The guidance is also applicable to raw milk of other species, such as goat, sheep and buffalo, if the specified prerequisites are met.
- Avant-proposiv
- Avant-proposv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions1
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4 Principe2
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5 Facteurs ayant une incidence sur les résultats des mesurages2
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5.1 Flacons à échantillons2
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5.2 Échantillonnage2
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5.3 Conservation3
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5.4 Conservation et transport des échantillons4
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5.5 Substances interférentes4
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5.6 Qualité de l'échantillon lors de l'analyse4
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5.7 Produits chimiques utilisés4
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5.8 État des instruments5
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5.9 Facteur de travail5
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5.10 Volumes d'essai5
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6 Étalonnage5
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6.1 Matériaux de référence5
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6.2 Mode opératoire de l'étalonnage7
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7 Échantillonnage8
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8 Détermination9
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9 Contrôles de fonctionnement en routine9
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9.1 Contrôles du blanc9
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9.2 Contamination d'un échantillon sur l'autre9
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9.3 Rapport de volume entre réactifs et échantillon10
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9.4 Contrôles pilotes10
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9.5 Surveillance supplémentaire de l'instrument10
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9.6 Répétabilité10
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9.7 Reproductibilité intralaboratoire11
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9.8 Comparaisons externes11
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10 Remarques spécifiques pour l'utilisation de lait d'espèces différentes11
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10.1 Généralités11
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10.2 Lait de vache12
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10.3 Lait de chèvre12
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10.4 Lait de brebis12
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10.5 Lait de bufflesse12
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11 Fidélité12
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11.1 Répétabilité12
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11.2 Reproductibilité intralaboratoire13
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11.3 Reproductibilité13
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12 Rapport d'essai14
- Bibliographie15
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