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ISO 2471:2008

Paper and board — Determination of opacity (paper backing) — Diffuse reflectance method ISO 2471:2008

Publication date:   Dec 3, 2008

General information

90.93 Standard confirmed   Feb 7, 2023

ISO

ISO/TC 6 Paper, board and pulps

International Standard

85.060   Paper and board

Buying

Published

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 2471:1998

NOW

PUBLISHED
ISO 2471:2008
90.93 Standard confirmed
Feb 7, 2023