EN ISO 8989:1998

Plastics - Liquid phenolic resins - Determination of water miscibility (ISO 8989:1995)

Gives a method for the determination of the miscibility of water with liquid phenolic resins depending on the conditions and on the degree of condensation of the resin. Replaces the first edition.

Kunststoffe - Flüssige Phenolharze - Bestimmung der Wasserverdünnbarkeit (ISO 8989:1995)

Diese Internationale Norm beschreibt ein Verfahren für die Bestimmung der B-Zeit von Wasserverdünnbarkeit von flüssigen Phenolharzen. Die Wasserverdünnbarkeit ist abhängig von den Reaktionsbedingungen und dem Kondensationsgrad des Harzes.

Plastiques - Résines phénoliques liquides - Détermination de la tolérance à l'eau (ISO 8989:1995)

Polimerni materiali – Tekoče fenolne smole – Določevanje mešljivosti z vodo (ISO 8989:1995)

General Information

• Status: Published
• Publication Date: 18-Aug-1998
• Withdrawal Date: 27-Feb-1999
• ICS: 83.080.10 - Thermosetting materials
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249/SC 1/WG 13 - Thermosets
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 19-Aug-1998
• Completion Date: 19-Aug-1998
• Ref Project: SIST EN ISO 8989:1999 - Plastics - Liquid phenolic resins - Determination of water miscibility (ISO 8989:1995)

Overview

EN ISO 8989:1998 (ISO 8989:1995) specifies a laboratory method to determine the water miscibility (water tolerance) of liquid phenolic resins. The test quantifies the percentage by mass of water required to produce a persistent turbidity in the resin under controlled conditions. This second edition replaces the first (1988) and revises the procedure to use grade 3 water (ISO 3696) instead of distilled water.

Key topics and requirements

• Scope: Applicability to liquid phenolic (thermosetting) resins; miscibility depends on resin chemistry and degree of condensation.
• Test temperature: Performed at 23 °C ± 0.1 °C; both resin and water must be conditioned to this temperature prior to testing.
• Reagent: Grade 3 water as defined in ISO 3696.
• Apparatus: Typical laboratory equipment required includes a 100 ml (or larger) beaker, short solid-stem thermometer (19–31 °C, 0.1 °C divisions), magnetic stirrer, 50 ml burette (0.1 ml divisions, class A), and an analytical balance (0.01 g accuracy).
• Sample mass: Test portions typically 10 g to 50 g; use a larger container if expected miscibility exceeds 900%.
• Procedure highlights:
  • Perform a preliminary test to estimate miscibility if unknown.
  • Add water in stages: initial addition ~50% of expected amount, subsequent ~10% steps until turbidity appears/vanishes on stirring, then add dropwise until turbidity persists for at least 30 seconds after agitation.
  • Record the volume V (ml) of water added.
• Result expression: Water miscibility WM (%) = (V / m) × 100, where V is water volume (ml) and m is mass of resin test portion (g). Optionally results can be expressed as ratio 1:x where x = WM/100.
• Reporting: Include reference to the standard, resin identification, test conditions and date, and calculated result.

Applications and users

• Who uses it: Resin manufacturers, quality control laboratories, R&D teams, and suppliers of thermosetting materials working with liquid phenolic resins.
• Practical uses:
  • Quality control to ensure consistent water tolerance for processing (mixing, storage, handling).
  • Formulation development and R&D to compare degrees of condensation and additive effects on water miscibility.
  • Supplier and customer specifications where water compatibility affects processing performance or end-use properties.
• Keywords: EN ISO 8989:1998, ISO 8989:1995, liquid phenolic resins, water miscibility, water tolerance test, phenolic resin water compatibility, grade 3 water (ISO 3696).

Related standards

• ISO 3696 - Water for analytical laboratory use (grade 3)
• ISO 385-1 / ISO 385-2 - Laboratory glassware - Burettes
• ISO 654 - Short solid-stem thermometers for precision use
• ISO/TC 61 SC12 - Technical committee responsible for thermosetting materials

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-1999
3ROLPHUQLPDWHULDOL±7HNRþHIHQROQHVPROH±'RORþHYDQMHPHãOMLYRVWL]YRGR,62

Plastics - Liquid phenolic resins - Determination of water miscibility (ISO 8989:1995)
Kunststoffe - Flüssige Phenolharze - Bestimmung der Wasserverdünnbarkeit (ISO
8989:1995)
Plastiques - Résines phénoliques liquides - Détermination de la tolérance a l'eau (ISO
8989:1995)
Ta slovenski standard je istoveten z: EN ISO 8989:1998
ICS:
83.080.10 Duromeri Thermosetting materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL IS0
STANDARD 8989
Second edition
1995-l 2-l 5
Plastics - Liquid phenolic resins -
Determination of water miscibility
P/as tiques - R&sines phbnoliques liquides - D&ermination de la
tolkrance 9 I’eau
Reference number
IS0 8989: 1995(E)
P
IS0 8989:1995(E) .
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work of
preparing International Standards is normally carried out through IS0
technical committees. Each 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, governmental
and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
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 IS0 8989 was prepared by Technical Committee
ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting materials.
This second edition cancels and replaces the first edition (IS0 8989:1988)
which has been revised so that the test is carried out with grade 3 water
as defined in IS0 3696 rather than distilled water.
0 IS0 1995
All rights reserved. Unless otherwise specified, no part of this publication may be
reproduced or utilized in any form or by any means, electronic or mechanical, including
photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii
IS0 8989:1995( E)
INTERNATIONAL STANDARD @ IS0
- Liquid phenolic resins - Determination of water
Plastics
miscibility
The determination is performed at a temperature of
1 Scope
23"CkO,l OC.
This International Standard specifies a method for the
Water is added to the resin until turbidity persists for a
determination of the miscibility of water with liquid
minimum of 30 s after agitation.
phenolic resins.
Water miscibility is dependent on the conditions and
on the degree of condensation of the resin.
4 Reagent
Water, grade 3 as defined in IS0 3696.
2 Normative references
The following standards contain provisions which,
5 Apparatus
through reference in this text, constitute provisions of
this International Standard. At the time of publication,
5.1 Beaker, of capacity 100 ml, or a larger-capacity
the editions indicated were valid. All standards are
container, depending upon the degree of water mis-
subject
...