EN ISO 8989:1998 PDF

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

Название (английский):

EN ISO 8989:1998

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

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 5
Дата публикации:: 19 августа 1998 г.
Издание:: CEN EN 8989 edition 2 version 1
ICS:: 83.080.10

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Описание (английский):

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.

Технические детали

Технический комитет: CEN/TC 249 - Plastics
SKU: EN ISO 8989:1998

Abstract

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

Overview

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

EN ISO 8989:1998 PDF

Технические детали

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Похожие стандарты

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Похожие стандарты

Plastics — Liquid phenolic resins — Determination of water miscibility

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

Laboratory glassware — Burettes — Part 1: General requirements

Laboratory glassware. Burettes.

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