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

Papper, kartong och massa - Bestämning av pH i vattenextrakt - Del 2: Varm extraktion (ISO 6588-2:2012, IDT)

Status: Upphävd

· Ersätts av: SS-ISO 6588-2:2020
Köp denna standard

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

Papper, kartong och massa - Bestämning av pH i vattenextrakt - Del 2: Varm extraktion (ISO 6588-2:2012, IDT)
Prenumerera på standarden - Läs mer Dölj
Pris: 735 SEK
standard ikon pdf

PDF

Pris: 735 SEK
standard ikon

Papper

Pris: 1 176 SEK
standard ikon pdf + standard ikon

PDF + papper

Fler alternativ Färre alternativ
Provläs denna standard
Omfattning
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.

Ämnesområden

Massa (85.040) Papper och papp (85.060)


Köp denna standard

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

Papper, kartong och massa - Bestämning av pH i vattenextrakt - Del 2: Varm extraktion (ISO 6588-2:2012, IDT)
Prenumerera på standarden - Läs mer Dölj
Pris: 735 SEK
standard ikon pdf

PDF

Pris: 735 SEK
standard ikon

Papper

Pris: 1 176 SEK
standard ikon pdf + standard ikon

PDF + papper

Fler alternativ Färre alternativ

Produktinformation

Språk: Engelska

Framtagen av: Kemiska analysmetoder, SIS/TK 157/AG 04

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

Artikelnummer: STD-88056

Utgåva: 1

Fastställd: 2012-11-19

Antal sidor: 24

Ersätts av: SS-ISO 6588-2:2020