Plastics - Unplasticized cellulose acetate - Determination of moisture content (ISO 585:1990)

This determination may be required for the calculation of the dry mass used in analytical methods. Applies only to products with a moisture content of not more than 10 %. The principle consists in drying a test portion at 105 ° centigrade in a thermostatic oven, then weighing. The moisture content is calculated from the loss of mass of the test portion. Cancels and replaces the first edition ISO 585:1982, of which it constitutes a minor revision.

Kunststoffe - Weichmacherfreies Celluloseacetat - Bestimmung des Feuchtegehaltes (ISO 585:1990)

Diese Internationale Norm legt ein Verfahren zur Bestimmung des Feuchtegehaltes von weichmacherfreiem Celluloseacetat fest. Diese Bestimmung kann zur Berechnung der Trockenmasse des Celluloseacetats, das in analytischen Verfahren verwendet wird, erforderlich sein. Das Verfahren ist nur für Celluloseacetat mit einem Feuchtegehalt von nicht mehr als 10% anwendbar.

Plastiques - Acétate de cellulose non plastifié - Détermination de l'humidité (ISO 585:1990)

La présente Norme internationale prescrit une méthode pour la détermination de lhumidité de l'acétate de cellulose non plastifié.  Cette détermination peut être nécessaire pour le calcul de la masse de l'acétate sec utilisé dans toutes les méthodes analytiques.  La méthode est applicable uniquement aux acétates de cellulose ayant une humidité inférieure à 10 %.

Polimerni materiali - Nemehčani acetat celuloze - Določevanje vlage (ISO 585:1990)

General Information

Status
Published
Publication Date
30-Apr-2000
ICS
83.080.01 - Plastics in general
 
83.080.20 - Thermoplastic materials
Technical Committee
IPMA - Polimer materials and products
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-May-2000
Due Date
01-May-2000
Completion Date
01-May-2000
Ref Project
EN ISO 585:1999 - Plastics - Unplasticized cellulose acetate - Determination of moisture content (ISO 585:1990)

Overview

SIST EN ISO 585:2000 specifies a standardized method for the determination of moisture content in unplasticized cellulose acetate plastics. This method is essential for accurately calculating the dry mass of cellulose acetate used in various analytical and quality control procedures. The test applies only to cellulose acetate products with moisture content not exceeding 10%. The testing principle involves drying a sample at 105 °C in a thermostatic oven and calculating moisture loss by weighing before and after drying.

This standard represents a minor revision of the original ISO 585:1982 and aligns with ISO 585:1990, ensuring consistency in international testing practices for cellulose acetate moisture measurement.

Key Topics

  • Material Scope: Unplasticized cellulose acetate plastics with ≤ 10% moisture content.
  • Testing Method:
    • Drying sample in a thermostatic oven at 105 °C ± 2 °C for 3 hours.
    • Use of a glass weighing bottle with ground-glass lid to hold the sample.
    • Cooling in a desiccator with anhydrous calcium chloride before weighing.
  • Weighing Precision: Balance accurate to 1 mg for initial and final weights.
  • Calculation of Moisture Content: Moisture percentage is derived from the mass loss of the test portion before and after drying.
  • Repeatability: Two determinations are performed; if moisture results differ by more than 0.1%, the test is repeated to ensure accuracy.
  • Safety Considerations: Users must establish appropriate health and safety practices when handling materials and equipment during testing.

Applications

  • Quality Control: Ensures consistent moisture content in cellulose acetate raw materials and products, critical for manufacturing and downstream processing.
  • Analytical Chemistry: Provides accurate dry mass quantification required for various analytical tests on cellulose acetate.
  • Material Specification Compliance: Validates moisture levels according to international standards to meet industry requirements.
  • Research and Development: Facilitates material characterization and optimization in product design involving unplasticized cellulose acetate.
  • Industrial Usage: Applicable in plastic manufacturing sectors, including films, sheets, and molded goods where moisture content affects physical properties and performance.

Related Standards

  • ISO 585:1982 – The original first edition replaced by SIST EN ISO 585:2000.
  • General Plastics Testing Standards – Covers methods related to moisture content in other thermoplastic materials (e.g., ISO and ASTM moisture determination methods).
  • Thermoplastic Materials Standards (ICS 83.080.20) – Includes test protocols for various thermoplastic polymers relevant to plastics industry professionals.
  • Desiccator and Oven Standards – For equipment calibration and maintenance to ensure test accuracy.

Adhering to SIST EN ISO 585:2000 helps manufacturers and laboratories maintain consistent moisture measurement practices for unplasticized cellulose acetate, enhancing product reliability and compliance with international quality standards. This test method's proven approach simplifies moisture determination and supports robust material evaluation across plastic supply chains.

Frequently Asked Questions

SIST EN ISO 585:2000 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Plastics - Unplasticized cellulose acetate - Determination of moisture content (ISO 585:1990)". This standard covers: This determination may be required for the calculation of the dry mass used in analytical methods. Applies only to products with a moisture content of not more than 10 %. The principle consists in drying a test portion at 105 ° centigrade in a thermostatic oven, then weighing. The moisture content is calculated from the loss of mass of the test portion. Cancels and replaces the first edition ISO 585:1982, of which it constitutes a minor revision.

This determination may be required for the calculation of the dry mass used in analytical methods. Applies only to products with a moisture content of not more than 10 %. The principle consists in drying a test portion at 105 ° centigrade in a thermostatic oven, then weighing. The moisture content is calculated from the loss of mass of the test portion. Cancels and replaces the first edition ISO 585:1982, of which it constitutes a minor revision.

SIST EN ISO 585:2000 is classified under the following ICS (International Classification for Standards) categories: 83.080.01 - Plastics in general; 83.080.20 - Thermoplastic materials. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN ISO 585:2000 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-maj-2000
3ROLPHUQLPDWHULDOL1HPHKþDQLDFHWDWFHOXOR]H'RORþHYDQMHYODJH ,62
Plastics - Unplasticized cellulose acetate - Determination of moisture content (ISO
585:1990)
Kunststoffe - Weichmacherfreies Celluloseacetat - Bestimmung des Feuchtegehaltes
(ISO 585:1990)
Plastiques - Acétate de cellulose non plastifié - Détermination de l'humidité (ISO
585:1990)
Ta slovenski standard je istoveten z: EN ISO 585:1999
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ISO
INTERNATIONAL
STANDARD
Second edition
1990-12-15
Plastics - Unplasticized cellulose acetate -
Determination of moisture content
Plas tiques - Aceta te de celulose non plastifik - Dktermina tion de l’humiditb
Reference number
ISO 585 : 1990 (El
ISO 585 : ‘K390 [E)
ISO (the International Organkation for Standardkation) is a worldwide federation sf
national Standards bodies (ISO member bedies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Kommission (IEC) on all
matters of electrotechnical Standardkation.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for voting. Publication as an International Standard requires
approval by at least 75 % of the member bodies casting a vote.
International Standard ISO 585 was prepared by Technical Committee BSO/YC 61,
Plas tics.
This second edition cancels and replaces the first edition HS0 585 3 982), of which it
constitutes a minor revision.
0 ISO 1990
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronie or mechanical, including photocopying and microfilm, without Permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 a CH-1211 Geneve 20 e Switzerland
Printed in Switzerland
SIST EN ISO 585
...

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