Abstract： AS 4784:2003 pdf download.Sample preparation for particle size analysis--Dispersing procedures for powders in liquids. determining If solution composition can be adjusted to vevent reagglomeration: selecting dispersing agents to prevent rea...

AS 4784:2003 pdf download.Sample preparation for particle size analysis--Dispersing procedures for powders in liquids.

determining If solution composition can be adjusted to vevent reagglomeration:

selecting dispersing agents to prevent reagglomeration:

— evaluating the stability of the dispersion against reagglomeration.

This International Standard is applicable to particles ranging in size from approximately 0.05 to 100 pm. it provicies a series of questions on the nature of the powder and liquid involved, The answers are used with charts that guide the user to genenc

dispersing agents that are likely to be suitable for dispersing the powder in the liquid.

This Intemational Standard applies only to the preparation of simple, dilute dispersions (less than 1 % by volume solids) for

particle size analysis. It does not deal with the formulation & complex and commercial mixtures highly loaded with solids, such as paints, inks, pharmaceuticals, herbicides and composite plastics.

2 Normative reference

The following norrnatrve document contains provisions which, through reference in this text, constitute provisions of this

International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply.

However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the

most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid Intemational Standards.

Recommended：