Introduction to papers presented at the fifth annual meeting of the fine particle society

Powder Technology. 13 (1976) 1 0 Elsevier Sequoia S-A., Lausanne -

Introduction to Papers Presented Particle Society

1 Printed in the Netherlands

at the Fifth Annual

Meeting

of the Fine

.

Once again, the Fine Particle Society is honored to include some of the papers presented at its Fifth Annual Meeting in this issue of Powder Technoloa _ The meeting was held on October 10th and llth, 1974 in Fort Lauderdale, Flotida. This year’s meeting was held jointly with the E-29 Committee of ASTM. The central theme of the meeting was particulate standards for the calibration of particle-sizing equipment. This theme was developeci both in the papers presented at the technical session and also in a rorrnd ‘able discussion held at the opening session of the meeting. Representatives of instrument manufacturers and users, government agencies, universities, and research laboratories reviewed in detail the available standard materials. Through discussion from ttz floor and presentation by the panelists, the needs for improved standards were identified. The papers read at the technical session indicated the research that is currently being conducted to meet these needs. It is clear that the rapid introduction of new, highly automated, particlesizing equipment has magnified the problem of calibration standards_ It has also greatly accelerated the need for newer, more uniform, and more versatile standard materials. The reports of new materials being studied for general use were therefore quite well received_ Further work in this important area is planned under the auspices of the ASTM E-29 Committee_ It is only by this concerted approach that the standards needed to characterize the properties of particulates will be achieved_ David J_ McDonald