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  • BSI
    BS EN ISO 638-1:2021 Paper, board, pulps and cellulosic nanomaterials. Determination of dry matter content by oven-drying method - Materials in solid form
    Edition: 2021
    $316.70
    / user per year

Description of BS EN ISO 638-1:2021 2021

This document specifies an oven-drying method for the determination of the dry matter content in paper, board, pulp and cellulosic nanomaterials in solid form, which all can be produced from virgin and /or recycled materials.

It is also applicable to the determination of the dry matter content of paper and board for recycling.

The procedure is applicable to paper, board, and pulp and cellulosic nanomaterials which do not contain any appreciable quantities of materials other than water that are volatile at the temperature of 105 °C ± 2 °C. It is used, for example, in the case of pulp, paper, and board and cellulosic nanomaterial samples taken for chemical and physical tests in the laboratory, when a concurrent determination of dry matter content is required.

This method is not applicable to the determination of the dry matter content of slush pulp or to the determination of the saleable mass of pulp lots.

NOTE 1

ISO 638-2 [ 1 ] specifies an oven-drying method for the determination of the dry matter content of suspensions of cellulosic nanomaterials, ISO 287 [ 2 ] specifies the determination of the moisture content of a lot of paper and board; ISO 4119 [ 3 ] specifies the determination of stock concentration of pulps; ISO 801 (all parts) [ 4 ] specifies the determination of the saleable mass in lots.

NOTE 2

This document determines the total dry matter content of the sample, including any dissolved solids. If only the cellulosic material content free of dissolved solids is desired, dissolved solids are removed prior to measuring the dry matter content e.g. by washing or dialysis, taking care to retain all cellulosic material; in cases where the sample is filterable without loss of cellulosic solids, ISO 4119 [ 3 ] can be used to determine the stock consistency (content of cellulosic material in solid form)



Standard NumberBS EN ISO 638-1:2021
TitlePaper, board, pulps and cellulosic nanomaterials. Determination of dry matter content by oven-drying method - Materials in solid form
StatusWithdrawn
Publication Date2021-05-28
Withdrawn Date2022-06-07
ReplacesBS EN ISO 638:2008
Replaced ByBS EN ISO 638-1:2022
Identical National Standard OfEN ISO 638-1, ISO 638-1
DescriptorsGravimetric analysis, Board (paper), Chemical analysis and testing, Dry weight determination, Paper pulp, Specimen preparation, Paper
ICS85.040 Pulps, 85.060 Paper and board
CommitteePAI/11
ISBN978 0 539 03244 4
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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