NF ISO 2470-1

NF ISO 2470-1

December 2016
Standard Current

Paper, board and pulps - Measurement of diffuse blue reflectance factor - Part 1 : indoor daylight conditions (ISO brightness)

ISO 2470-1:2016 specifies a method for measuring the diffuse blue reflectance factor (ISO brightness) of pulps, papers and boards.ISO 2470-1:2016 is limited in its scope to white and near-white pulps, papers and boards. The measurement can only be made in an instrument in which the ultraviolet energy level of the illumination has been adjusted to correspond to the CIE illuminant C[6] using a fluorescent reference standard. The CIE illuminant C is taken to be representative of indoor daylight conditions because it contains a suitable proportion of UV radiation.[9]

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Main informations

Collections

National standards and national normative documents

Publication date

December 2016

Number of pages

17 p.

Reference

NF ISO 2470-1

ICS Codes

85.060   Paper and board

Classification index

Q03-039-1

Print number

1

International kinship

ISO 2470-1:2016
Sumary
Paper, board and pulps - Measurement of diffuse blue reflectance factor - Part 1 : indoor daylight conditions (ISO brightness)

ISO 2470-1:2016 specifies a method for measuring the diffuse blue reflectance factor (ISO brightness) of pulps, papers and boards.

ISO 2470-1:2016 is limited in its scope to white and near-white pulps, papers and boards. The measurement can only be made in an instrument in which the ultraviolet energy level of the illumination has been adjusted to correspond to the CIE illuminant C[6] using a fluorescent reference standard. The CIE illuminant C is taken to be representative of indoor daylight conditions because it contains a suitable proportion of UV radiation.[9]

Replaced standards (1)
NF ISO 2470-1
November 2009
Standard Cancelled
Paper, board and pulps - Measurement of diffuse blue reflectance factor - Part 1 : indoor daylight conditions (ISO brightness)

Le présent document doit être utilisé conjointement avec la NF ISO 2469 qui définit les caractéristiques géométriques de l'appareil ainsi que le mode opératoire d'étalonnage photométrique à adopter. Le présent document spécifie une méthode de mesurage du facteur de réflectance diffuse dans le bleu (degré de blancheur ISO) des pâtes, papiers et cartons. Il se limite aux pâtes, papiers et cartons blancs ou presque blancs. Le mesurage ne peut être effectué qu'à l'aide d'un appareil dans lequel le niveau d'énergie ultraviolette de l'éclairage a été réglé à l'aide d'un étalon de référence fluorescent pour correspondre à l'illuminant CIE C.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Appareillage
  • 6 Échantillonnage et conditionnement
  • 7 Préparation des éprouvettes
  • 8 Mode opératoire
  • 9 Expression des résultats
  • 10 Rapport d'essai
  • Annexe A Caractéristiques spectrales des appareils de mesure du degré de blancheur ISO
  • Annexe B Service d'étalonnage de la teneur en UV
  • Annexe C Fidélité
  • Bibliographie
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