JIS P 8254:2013 PDF

Scope: This Standard specifies the determination of the effective residual ink concentration (ERIC number) by infrared reflectance measurement. This Standard is applicable to all types of deinked,recycled pulp and to sheets of machine-made paper made from recycled pulp,where the residual ink is black. The method is applicable to materials available in sheet form only if the opacity at 950 nm is less than 97 %[1]. The ERIC number obtained is dependent on the distribution of ink particle sizes,and the method is most effective for submicron particles. The value obtained is reliable only if the test material is uniform in ink distribution,formation,and grammage such that presenting different parts of the sheet to the measuring aperture of the reflectometer produces very similar readings.

JIS P 8254:2013 Referenced Document

ISO 14487 Pulps - Standard water for physical testing
JIS P 0001 Paper, board and pulp -- Vocabulary
JIS P 8110 Paper and board -- Sampling to determine average quality
JIS P 8124 Paper and board -- Determination of grammage
JIS P 8152 Paper, board and pulps -- Measurement of diffuse reflectance factor
JIS P 8222 Pulps -- Preparation of laboratory sheets for physical testing -- Conventional sheet-former method*， 2015-06-22 Update

2013 JIS P 8254:2013 Pulp and paper.Determination of the effective residual ink concentration (ERIC number) by infrared reflectance measurement