Pappersteknik

Ämnesområden: Papper och papp
Kommittébeteckning: SIS/TK 157 (Massa och papper)
Källa: ISO
Svarsdatum: den 2 okt 2018
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This document specifies a basic laboratory test method to evaluate the deinkability, applicable to any kind of printed paper product, under alkaline conditions by means of single stage flotation deinking and fatty acid based collector chemistry.

Ämnesområden: Massa; Papper och papp
Kommittébeteckning: SIS/TK 157 (Massa och papper)
Källa: ISO
Svarsdatum: den 18 okt 2018
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This International Standard specifies the procedure for the determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium by atomic absorption spectrometry or by plasma emission spectrometry. The acid-soluble element comprises the acid-soluble part of the incineration residue, i.e. that part of the ignition residue obtained after incineration which is soluble in hydrochloric acid or nitric acid. In the case where the residue is completely soluble, the result obtained by the procedure specified in this International Standard is a measure of the total amount of each element in the sample.

This International Standard is applicable to all types of paper, board, pulps and cellulose nanomaterials.

The limit of determination depends on the element and on the instrument used.

Kommittébeteckning: SIS/TK 157 (Massa och papper)
Källa: ISO
Svarsdatum: den 18 okt 2018
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This International Standard describes the determination of the residue (ash content) on ignition of pulps, papers, boards and cellulose nanomaterials. The International Standard is applicable to all types of pulp, paper, board and cellulose nanomaterial. This International Standard provides measurement procedures to obtain a measurement precision of 0,01 % or better for residue (ash content) on ignition at 900 °C.

Kommittébeteckning: SIS/TK 157 (Massa och papper)
Källa: ISO
Svarsdatum: den 29 okt 2018
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This International Standard describes the determination of the residue (ash content) on ignition of paper, board, pulps and cellulose nanomaterials at 525 °C. It is applicable to all types of paper, board, pulp and cellulose nanomaterial samples.

This International Standard provides measurement procedures to obtain a measurement precision of 0,01 % or better for residue (ash content) on ignition at 525 °C.

Determination of residue (ash content) on ignition at 900 °C of paper, board, pulps and cellulose nanomaterials is described in ISO 2144.