SIST EN ISO 8780-2:1997 PDF

Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 2: Dispersion using an oscillatory shaking machine (ISO 8780-2:1990)

Title (English):

SIST EN ISO 8780-2:1997

Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 2: Dispersion using an oscillatory shaking machine (ISO 8780-2:1990)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 8
Publication date:: December 1, 1997
ICS:: 87.060.10
Technical committee:: PIP - Pigments and extenders

Document language:

enru

Delivery time:1–7 days

Price:44 €

Description (English):

The method is suitable for the preparation of dispersions of several samples in the quality control of pigments. An agreed binder system of low vicosity is used. This method is restricted to low-viscosity mill bases allowing free movement of the grinding spheres. It is not suitable for optimizing mill base formulations for other dispersing techniques.

Technical details

SKU: SIST EN ISO 8780-2:1997

Abstract

Overview

SIST EN ISO 8780-2:1997 titled "Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 2: Dispersion using an oscillatory shaking machine" is an internationally recognized standard developed by CEN. It specifies a method for dispersing pigments and extenders utilizing an oscillatory shaking machine, primarily intended for quality control testing. This method is adapted to low-viscosity mill bases that enable free movement of grinding spheres and is used with an agreed low-viscosity binder system.

The standard forms part of a series under ISO 8780, which addresses various dispersion methods to assess pigment dispersion characteristics effectively. EN ISO 8780-2 offers a controlled, reliable technique essential in pigment and extender testing for the paints and coatings industry.

Key Topics

Scope and Applicability The method is suitable for preparing dispersions of samples in pigment quality control. It applies only to low-viscosity mill bases, not suitable for optimizing mill base formulations for alternative dispersing techniques.
Equipment and Materials
- Oscillatory shaking machine with a specified stroke rate of 680-690 reciprocations per minute and shaking amplitude of 16 mm.
- Holder designed for multiple mill base containers, maintaining consistent positioning for repeatability.
- Uniform containers (e.g., 250 ml glass or polyethylene bottles) to ensure consistent volume and conditions.
- Grinding spheres with carefully controlled diameter (~3 mm ± 0.5 mm) and density (~2.6 g/cm³ ± 0.2 g/cm³) to guarantee reproducible dispersion.
Mill Base and Binder System Uses an agreed low-viscosity binder system. The pigment concentration is adjusted according to binder demand:
- Low binder demand: pigment > 40%
- Medium binder demand: pigment 10%-40%
- High binder demand: pigment

Related standards

Mentioned in the description and other SIST standards

Overview

Key Topics

Scope and Applicability The method is suitable for preparing dispersions of samples in pigment quality control. It applies only to low-viscosity mill bases, not suitable for optimizing mill base formulations for alternative dispersing techniques.
Equipment and Materials
- Oscillatory shaking machine with a specified stroke rate of 680-690 reciprocations per minute and shaking amplitude of 16 mm.
- Holder designed for multiple mill base containers, maintaining consistent positioning for repeatability.
- Uniform containers (e.g., 250 ml glass or polyethylene bottles) to ensure consistent volume and conditions.
- Grinding spheres with carefully controlled diameter (~3 mm ± 0.5 mm) and density (~2.6 g/cm³ ± 0.2 g/cm³) to guarantee reproducible dispersion.
Mill Base and Binder System Uses an agreed low-viscosity binder system. The pigment concentration is adjusted according to binder demand:
- Low binder demand: pigment > 40%
- Medium binder demand: pigment 10%-40%
- High binder demand: pigment

SIST EN ISO 8780-2:1997 PDF

Technical details

Abstract

Overview

Key Topics

Related standards

Abstract

Overview

Key Topics

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