BS-4432 (Part 4) - 1980/ISO 3688 - 1977; Methods for determining optical properties of pulp, paper and board Part 4 measurement of diffuse blue reflectance factors (ISO brightness) of pulps
BS-4432 (Part 4) - 1980/ISO 3688 - 1977; Methods for determining optical properties of pulp, paper and board Part 4 measurement of diffuse blue reflectance factors (ISO brightness) of pulps
- London BSI 1980
- 5p
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