Computrac MAX-1000 User's Manual - Arizona Instrument

18 APPENDIX A18.1 PARAMETER DEVELOPMENT - CHEMICALS INDUSTRYFollowing are the guidelines for developing parameters.TEST TEMPERATURE: Adjust as neededBe sure to use a temperature that is high enough to drive off all the moisture but doesnot degrade the material in any appreciable way.If after establishing good accuracy with the material, the test times are longer thandesired; then try using HISTART. Start with a HISTART temperature that is20° C higher than the TEST temperature.STANDBY TEMPERATURE:Dry samples 50°CWater-based solutions 50°CSolvent-based solutions 50°CIf possible, experiment with a standby temperature of 80°C, especially with thosesamples using test temperatures greater than 120°C.ENDING CRITERIA:If accuracy and/or reproducibility is not acceptable, try working with rate endingcriteria. If accuracy and reproducibility is still not acceptable, contact your SalesRepresentative for assistance.If possible, when acceptable results are established using either auto or manual predict,work with the material with the rate ending criteria to see if the results can be improved.SAMPLE SIZE:SUGGESTED ENDING CRITERIASAMPLE TYPE SIZE RATEDry samples 5-7 grams 0.1%For moisture levels