Volume measurement of wool samples.
N.C. Merrick and D.R. Scobie
AgResearch, PO Box 60, Lincoln.
Proceedings of the New Zealand Society of Animal Production. 1997,
57: 57-60
A rapid procedure for measuring the volume of wool samples was
developed, using a gas pycnometer. Volume was measured on midside wool
samples, harvested monthly, from thirteen sheep breeds representing a
range of wool medullation categories. Clean sample weights between two
and ten grams and the fourth sequential volume measurement are
recommended. Volume was also calculated, using the sample mass and the
theoretical density of wool. Measured and calculated volumes were the
same for non-medullated wools (p=0.20), but not for highly medullated
wools, the measured volume was 25% greater than the calculated volume
(p<0.001).
Keywords: NZSAPAB;
medullation; wool mass; wool volume; gas pycnometer.
Last Updated 12-09-1998
