CGSB 9.0 NO. 9-93-CAN/CGSB-1993
Methods of Testing Pulp and Paper Air-Dry Weight Determination of Wood Pulp

Standard No.

CGSB 9.0 NO. 9-93-CAN/CGSB-1993

Release Date

1993

Published By

Canadian General Standards Board （CGSB)

Status

Withdraw

Scope

Absolute brightness is defined as the reflectance of blue light with a specified spectral distribution peaking at 457 nm compared to that of a perfectly reflecting, perfectly diffusing surface. Although no physical material has such a surface. the