Predicting Processing Performance

Wool traders must take care in expecting the certified results on greasy wool to exactly replicate the certified results on the semi-processed or processed wool. Objective measurements are used to predict the processing performance, but the effect of the components of variance discussed above also apply to tests on the semi-processed and processed wool. The issue becomes more complex, as some allowance needs to be made by the trader for processing conditions. The process, the mill and the wool type can impact on the result of the semi-processed or processed result when compared to the greasy wool result. Here, the skill and experience of the trader in understanding the technical limitations of the IWTO Test Methods and the processing effect of particular wools and processors is paramount.