NFP 98 744-2 : 2009
Current
The latest, up-to-date edition.
ROAD CONSTRUCTION AND MAINTENANCE EQUIPMENT - ON-SITE CALIBRATION AND VERIFICATION OF THE SETTINGS OF CONTINUOUS DOSING APPARATUS OF MATERIAL PRODUCTION PLANTS - PART 2: AGGREGATE WEIGHING DOSING MACHINE
12-01-2013
Avant-propos
1 Domaine d'application
2 Références normatives
3 Termes et définitions
4 Principe
5 Appareillage
6 Mode opératoire d'un essai élémentaire
6.1 Opérations préalables
6.1.1 Tarage du doseur
6.1.2 Plage de fonctionnement du doseur
6.2 Essai élémentaire
6.3 Calibrage du doseur
6.4 Vérification du réglage
6.5 Qualification d'un doseur
6.5.1 Doseur ne disposant pas de référence
6.5.2 Doseur disposant de références préalables
7 Calcul et expression des résultats
7.1 Validité des essais
7.2 Validité de la droite de calibrage
7.3 Validité de l'écart de vérification
7.4 Validité des capacités d'écoulement de la trémie
7.5 Validité de la régulation
8 Rapport d'essai
Annexe A (informative) Exemple de présentation de
rapport d'essai
Le présent document spécifie la méthode permettant d'effectuer: les réglages et le calibrage des doseurs pondéraux à granulats et à agrégats d'enrobé utilisés dans une centrale de fabrication des mélanges granulaires (NF P 98-701), à partir de la pesée d'une certaine masse de granulats humides, délivrée par le doseur dans des conditions de fonctionnement données (essai dit par pesée "matière"); la vérification du réglage du doseur, par pesée "matière".
| DevelopmentNote |
Indice de classement: P98-744-2. PR NFP 98 744-2 October 2007. (10/2007)
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| DocumentType |
Standard
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| PublisherName |
Association Francaise de Normalisation
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| Status |
Current
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