Бумага и картон. Определение непрозрачности бумаги. Метод диффузного отражения
Название (англ.):
Paper and board; Determination of opacity (paper backing); Diffuse reflectance method
Описание (англ.):
Is condined to white and near-white papers and boards. Paper or board treated with fluoroscent dyestuff or exhibiting significant flouroscence may be measured, but the agreement between values obtained with different instruments may by unsatisfactory and assessing the results may by difficult.