ISO 2470-2:2008

Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 2: Outdoor daylight conditions (D65 brightness)

Publication date: 22 tet 2008

General information

Current stage: 90.93 Effective date: 7 sht 2022

Originator: ISO

Owner: ISO/TC 6

Type: International Standard

ICS: 85.040 85.060

Gjuha: anglisht frëngjisht

Buying

Statusi: Publikuar

PDF - 7 350 Lekë

Paper - 7 350 Lekë

CD - 7 350 Lekë

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Scope

ISO 2470-2:2008 specifies a method for measuring the D65 brightness of pulps, papers and boards.
ISO 2470-2:2008 is limited in its scope to white and near-white pulps, papers and boards, particularly those exhibiting fluorescence which promotes the appearance of whiteness. 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 standard illuminant D65 using a fluorescent reference standard.
The source employed in ISO 2470-2:2008 excites almost twice as much fluorescence as the illuminant in ISO 2470-1. Consequently, ISO 2470-2:2008 is better suited for measuring the fluorescent contribution to the brightness. However, D65 brightness should not be confused with ISO brightness which closely approximates the brightness of papers viewed under indoor conditions.

Life cycle

NOW

PUBLISHED
ISO 2470-2:2008
90.93 Standard confirmed
7 sht 2022

National adoptions

SSH ISO 2470-2:2008

DPS

Letër, karton dhe brumë letre - Matja e faktorit të reflektimit të dritës blu difuze - Pjesa:2 Kushtet e jashtme në ndricimin e ditës (shkalla e shkëlqimit D65)

60.60 Standard published

DPS/KT 172 më tepër