38--THE EFFECTS OF HIGH-SPEED BLENDING OF GREASY-WOOL CORE SAMPLES ON YIELD VARIABILITY.

Autor: Connell, J. P., Stearn, A. E., Buckenham, P.
Předmět:
Zdroj: Journal of the Textile Institute; Sep1976, Vol. 67 Issue 9, p292-298, 7p, 1 Diagram, 3 Charts
Abstrakt: High-speed fan-blending provides a means of homogenizing greasy-wool core samples before sub-sampling for yield-testing. The blending operation reduces the amount of retesting necessary by reducing the between-test-specimens variance of yield. Measurements are reported of the variance of yield between l-g sub-samples, which enables a partial separation to be made of the components of variance due to sub-sampling and testing as determined on larger (30-g) test specimens. High-speed fan-blending causes a reduction in both these components. There is a small, unexplained, and apparently systematic reduction in determinations of mean yield for wools blended in this manner. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index