NF P98-744-2

NF P98-744-2

October 1996
Standard Cancelled

Road construction and maintenance equipment. On-site calibration and verification of the settings of the continuous dosing apparatus of material production plants. Part 2 : aggregate weighing dosing machine.

Le présent document définit les essais à réaliser pour effectuer le calibrage d'un doseur continu ainsi que les essais permettant de vérifier les réglages. La partie 2 concerne les doseurs continus pondéraux à granulats contrôlés par la méthode de la pesée "matière".

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Main informations

Collections

National standards and national normative documents

Publication date

October 1996

Number of pages

11 p.

Reference

NF P98-744-2

ICS Codes

93.080.10   Road construction

Classification index

P98-744-2

Print number

1 - septembre 1996
Sumary
Road construction and maintenance equipment. On-site calibration and verification of the settings of the continuous dosing apparatus of material production plants. Part 2 : aggregate weighing dosing machine.

Le présent document définit les essais à réaliser pour effectuer le calibrage d'un doseur continu ainsi que les essais permettant de vérifier les réglages. La partie 2 concerne les doseurs continus pondéraux à granulats contrôlés par la méthode de la pesée "matière".
Standard replaced by (1)
NF P98-744-2
July 2009
Standard Cancelled
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

Table of contents
  • Avant-propos
    4
  • 1 Domaine d'application
    4
  • 2 Références normatives
    4
  • 3 Définitions et abréviations
    4
  • 4 Principe
    5
  • 5 Appareillage
    5
  • 6 Mode opératoire
    5
  • 6.1 Opérations préalables
    5
  • 6.2 Essai élémentaire
    5
  • 6.3 Calibrage du doseur
    6
  • 6.4 Vérification du réglage
    9
  • 7 Calcul et expression des résultats
    9
  • 7.1 Validité des essais
    9
  • 7.2 Courbe de réponse du doseur
    9
  • 7.3 Détermination de l'écart de linéarité conventionnel
    9
  • 7.4 Validité de la droite de calibrage
    9
  • 7.5 Validité des capacités d'écoulement de la trémie
    10
  • 7.6 Validité de la régulation
    10
  • 7.7 Détermination de l'écart de vérification
    10
  • 8 Rapport d'essai
    10
  • Annexe A (informative) Exemple de rapport d'essai
    11
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