Chemical Log The Australian wool industry has become increasingly aware of the problem of chemical residues in the wool clip. Recording the use of chemicals provides valuable information when assessing the risk of residues in your clip. This log can be easily copied and applies to meat and wool. Different versions of chemical logs may be used by growers, provided the key information is recorded and can be accessed to verify animal treatments. It is extremely important to always follow the manufacturer’s instruction and, especially, to observe any wool harvesting interval or other withholding periods. * Check the label for a wool harvesting interval and sheep rehandling interval or withholding period for meat and/or wool. The wool harvesting interval for wool means the period during which the sheep must not be shorn. A withholding period for meat means that animals must not be sold for slaughter within this period after treatment. If stock is to be sold for export an export slaughter interval may apply-check with your stock agent.