BS 3406-1:1986

This standard BS 3406-1:1986 Methods for determination of particle size distribution is classified in these ICS categories:

• 19.120 Particle size analysis. Sieving

This Part of BS 3406 provides guidance on powder sampling. It recommends methods for the subdivision of gross or laboratory powder samples into test portions suitable for analysis by methods for the determination of the particle size distribution described in other Parts of BS 3406 and for particle characterization analyses described in other British Standards. Ways of obtaining very small test portions are described.

This Part of BS 3406 indicates points to look for in a preliminary examination of the sample to assist in the selection of the most appropriate method to subdivide the powder in question. Factors affecting this selection are considered and recommendations made to ensure that the integrity of the sample is maintained throughout the subdivision process. Appendix A gives the results of investigations by several workers into the relative efficiencies of the sample dividing methods.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

Recommended methods for the subdivision of laboratory powder samples into test portions suitable for analysis by methods for the determination of the particle size distribution described in other Parts of this standard and for particle characterization analysis described in other British Standards.