Name: ASTM D 985 : 1997 : R2002
Brand: ASTM
Price: 75.00 USD

ASTM D 985 : 1997 : R2002

Superseded

View Superseded by

Standard Test Method for Brightness of Pulp, Paper, and Paperboard (Directional Reflectance at 457 nm)

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

12-10-1997

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 15.09, 2009 Explains the brightness of white, near-white, and naturally colored pulp, paper, and paperboard.

1.1 This test method determines the brightness of white, near-white, and naturally colored pulp, paper, and paperboard. Brightness is a commonly used industry term for the numerical value of the reflectance factor of a sample, with respect to blue light of specific spectral and geometric characteristics. This test method requires an instrument employing 45 illumination and 0 viewing geometry, with the illuminating and viewing beams adjusted so that translucent materials are evaluated on an arbitrary but specific scale (1-4).

1.2 This test method is applicable to all naturally-colored pulps, and papers and board made from pulps. The measurement is not suitable for paper and paperboard containing added coloring matter (such as yellow or green dyestuff) which appreciably absorbs light in that part of the spectrum extending from about 400 to 500 nm. Colored papers must be measured spectrophotometrically or colorimetrically in order to obtain meaningful results (TAPPI T442, T524, and T527). This test method is, however, suitable for pulps or papers which contain optical (fluorescent) brightening agents.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee	D 06
DocumentType	Test Method
Pages	6
ProductNote	Reconfirmed 2002
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 985 : 1997 : R2007
Supersedes	ASTM D 985 : 1997

TAPPI T 527 : 2013	COLOR OF PAPER AND PAPERBOARD (D/0, C/2)
TAPPI T 442 : 0	SPECTRAL REFLECTANCE FACTOR, TRANSMITTANCE, AND COLOR OF PAPER AND PULP (POLYCHROMATIC ILLUMINATION)
TAPPI T 218 : 2011	FORMING HANDSHEETS FOR REFLECTANCE TESTS OF PULP (BUCHNER FUNNEL PROCEDURE)
ASTM D 585 : 1997	Standard Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product
TAPPI T 524 : 2013	COLOR OF PAPER AND PAPERBOARD (45/0, C/2)
ASTM D 1968 : 2015	Standard Terminology Relating to Paper and Paper Products
TAPPI T 1206 : SP 91	PRECISION STATEMENT FOR TEST METHODS
TAPPI T 452 : 2008	BRIGHTNESS OF PULP, PAPER AND PAPERBOARD (DIRECTIONAL REFLECTANCE AT 457 NM)