Standard Swedish standard · SS-ISO 6588-2:2012

Paper, board and pulps - Determination of pH of aqueous extracts - Part 2: Hot extraction (ISO 6588-2:2012, IDT)

Status: Withdrawn

· Replaced by: SS-ISO 6588-2:2020
Buy this standard

Standard Swedish standard · SS-ISO 6588-2:2012

Paper, board and pulps - Determination of pH of aqueous extracts - Part 2: Hot extraction (ISO 6588-2:2012, IDT)
Subscribe on standards - Read more Dölj
Price: 735 SEK
standard ikon pdf

PDF

Price: 735 SEK
standard ikon

Paper

Price: 1 176 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less
Preview this standard
Scope
This part of ISO 6588 specifies a method for the determination of the pH-value defined by the electrolytes extractable by hot water from a sample of paper, board or pulp.
This part of ISO 6588 is applicable to all kinds of paper, board and pulp.
As the quantity of extractable ionic material approaches zero, as in the case of highly purified pulps, the precision of the method becomes poor because of the difficulties encountered in making pH measurements on water containing little electrolytic material.
Since the extraction in this part of ISO 6588 is performed with distilled or deionised water, the pH-value measured will sometimes be different (e.g. fully bleached pulp) from the pH-value measured under mill process conditions in which various types of process waters, e.g. chemically treated river water containing electrolytes, are used.
It is necessary to be aware that the results will not be the same when measuring pH according to this part of ISO 6588 when compared to ISO 29681. The differences can be significant especially when measuring pulps having a low ionic strength.
ISO 6588-1 differs from this part of ISO 6588 only as regards the extraction conditions. No general guidance can be given as to which of the two procedures (hot or cold) is best suited in a particular situation.
For cellulosic papers used for electrical purposes, the method used should be that given in IEC 60554-2.

Subjects

Pulps (85.040) Paper and board (85.060)


Buy this standard

Standard Swedish standard · SS-ISO 6588-2:2012

Paper, board and pulps - Determination of pH of aqueous extracts - Part 2: Hot extraction (ISO 6588-2:2012, IDT)
Subscribe on standards - Read more Dölj
Price: 735 SEK
standard ikon pdf

PDF

Price: 735 SEK
standard ikon

Paper

Price: 1 176 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less

Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-88056

Edition: 1

Approved: 11/19/2012

No of pages: 24

Replaced by: SS-ISO 6588-2:2020