BS ISO 2470:1999

Superseded

View Superseded by

Paper, board and pulps. Measurement of diffuse blue reflectance factor (ISO brightness)

Available format(s)

Hardcopy , PDF

Superseded date

30-11-2009

Language(s)

English

Published date

15-01-2000

Publisher

British Standards Institution

Gives a method for measuring the diffuse blue reflectance factor (ISO brightness) of papers, pulps and boards. It is limited to white and near-white papers, pulps and boards. Materials exhibiting fluorescence which promotes the appearance of whiteness may be measured but the ultraviolet energy level of the illumination must be adjusted with a fluorescent calibration standard if standardization and agreement between instruments is to be achieved.

Committee	PAI/11
DevelopmentNote	Supersedes BS 4432-2(1980) (01/2000) Supersedes 96/125203 DC. (07/2005)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS ISO 2470-1:2009
Supersedes	BS 4432-2:1980 96/125203 DC : DRAFT SEP 1996

Standards	Relationship
ISO 2470:1999	Identical

ISO 4094:2005	Paper, board and pulps International calibration of testing apparatus Nomination and acceptance of standardizing and authorized laboratories
ISO 186:2002	Paper and board — Sampling to determine average quality
ISO 11475:2017	Paper and board — Determination of CIE whiteness, D65/10 degrees (outdoor daylight)
ISO 2469:2014	Paper, board and pulps — Measurement of diffuse radiance factor (diffuse reflectance factor)
ISO/CIE 10526:1999	CIE standard illuminants for colorimetry
ISO 3688:1999	Pulps — Preparation of laboratory sheets for the measurement of diffuse blue reflectance factor (ISO brightness)
ISO 7213:1981	Pulps Sampling for testing