ISO 777:2005

Paper, board and pulp — Determination of acid-soluble calcium

ISO 777:2005 specifies the procedure for the determination of acid-soluble calcium by atomic absorption spectrometry or by plasma emission spectrometry.

It is applicable to all kinds of paper, board and pulp.

It specifies a method to determine the acid-soluble part of the incineration residue, i.e. that part of the ignition residue obtained after incineration that is soluble in hydrochloric acid. If the residue is completely soluble, the result obtained by the procedure specified in ISO 777:2005 is taken as the total amount of calcium in the sample.

Edition	2005
Published Date	2005
Published By	International Standardization Organisation
Page Count	6