Paper and board. Determination of opacity (paper backing). Diffuse reflectance method.

Le présent document définit une méthode de détermination de l'opacité sur fond papier par réflexion en lumière diffuse des papiers et cartons blancs ou presque blancs.

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Main informations

Collections

National standards and national normative documents

Publication date

December 1998

Number of pages

12 p.

Reference

NF ISO 2471

ICS Codes

85.060 Paper and board

Classification index

Q03-040

Print number

1 - 07/12/2004

International kinship

ISO 2471:1998

Sumary

Paper and board. Determination of opacity (paper backing). Diffuse reflectance method.

Le présent document définit une méthode de détermination de l'opacité sur fond papier par réflexion en lumière diffuse des papiers et cartons blancs ou presque blancs.

Replaced standards (1)

NF Q03-040

September 1983

Published document Cancelled

Paper and board tests. Measurement of opacity (paper backing) (diffuse reflector method).

Standard replaced by (1)

NF ISO 2471

February 2009

Standard Current

Paper and board - Determination of opacity (paper backing) - Diffuse reflectance method

ISO 2471:2008 specifies a method for the determination of the opacity (paper backing) of paper by diffuse reflectance. It can be used to determine the opacity of papers or boards which contain fluorescent whitening agents, provided the UV content of the radiation incident on the test piece has been adjusted to conform to that in the CIE illuminant C using a fluorescent reference standard provided by an ISO/TC 6 Authorized Laboratory as described in ISO 2470-1. ISO 2471:2008 is not applicable to coloured papers or boards which incorporate fluorescent dyes or pigments.

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