Standard Swedish standard · SS-ISO 21400:2019

Pulp - Determination of cellulose nanocrystal sulfur and sulfate half-ester content (ISO 21400:2018, IDT)

Status: Valid

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Standard Swedish standard · SS-ISO 21400:2019

Pulp - Determination of cellulose nanocrystal sulfur and sulfate half-ester content (ISO 21400:2018, IDT)
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Scope
This document specifies procedures for the laboratory determination of the total elemental sulfur and
the sulfate half-ester content of cellulose nanocrystals (CNCs) by inductively coupled plasma-optical
emission spectroscopy and conductometric titration, respectively, including sample preparation,
measurement methods and data analysis.
This document is applicable to the characterization of CNCs:
a) with all monovalent counterions (particularly hydronium and sodium cations);
b) which are either in the never-dried state in aqueous suspension, or have been redispersed from a
dried form; and
c) which have been extracted from any naturally occurring cellulose source using a range of sulfuric
acid hydrolysis conditions, or have been sulfated post-hydrolysis using sulfuric acid.

Subjects

Pulps (85.040)


Buy this standard

Standard Swedish standard · SS-ISO 21400:2019

Pulp - Determination of cellulose nanocrystal sulfur and sulfate half-ester content (ISO 21400:2018, IDT)
Subscribe on standards - Read more Dölj
Price: 1 152 SEK
standard ikon pdf

PDF

Price: 1 152 SEK
standard ikon

Paper

Price: 1 843,20 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80015224

Edition: 1

Approved: 8/22/2019

No of pages: 36