Cellulose. Determination of the maximum viscosity index of the cellulose in dilute solutions.

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Main informations

Collections

National standards and national normative documents

Publication date

October 1981

Number of pages

30 p.

Reference

NF T12-005

ICS Codes

85.040 Pulps

Classification index

T12-005

Print number

1 - 01/11/1984

International kinship

ISO 5351-1:1981

Replaced standards (1)

NF T12-005

March 1953

Standard Cancelled

Cellulose. Determination of intrinsic viscosity of cellulose. Average viscosimetric degree of polymerization.

Table of contents

Introduction
2
1 Objet et domaine d'application
2
2 Référence
3
3 Définitions
3
4 Principe
4
PARTIE 1 - MÉTHODE A LA CUPRI-ÉTHYLÉNE-DIAMINE (CED)
5 Prétraitement des échantillons pour essai
4
6 Alternative A - Détermination de l'indice de viscosité à basse concentration de cellulose
4
6.1 Réactifs
4
6.2 Appareillage
4
6.3 Mode opératoire
5
6.4 Calcul
6
7 Alternative B - Détermination de l'indice de viscosité à un taux de cisaillement défini
7
7.1 Réactifs
7
7.2 Appareillage
7
7.3 Étallonnage des viscosimètres
7
7.4 Mode opératoire
8
7.5 Calcul
8
8 Procès-verbal d'essai
9
PARTIE 2 - MÉTHODE AU COMPLEXE FER-TARTRATE DE SODIUM (EWNN)
9 Prétraitement des échantillons pour essai
9
10
Réactifs 9
11 Appareillage
9
12 Mode opératoire
10
13 Calcul
10
14 Procès-verbal
11
Annexe A - Préparation et analyse de la solution de cupri-éthylènediamine
12
Annexe B - [êta]. c pour différentes valeurs du rapport de viscosité êta/êta 0
15
Annexe C - Échantillons de très haute ou de très basse viscosité
17
Annexe D - Préparation de la solution du complexe fer (III)-tartrate de sodium
18

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