12. Procedure for Automated and Automatic Automated CCS Operation
12.1 Establish the calibration equation as described in 10.2.
12.2 For automatic automated CCS instruments, place a minimum of 55 mL of the sample to be tested into a 60 mL bottle(s) designed to fit the sample tray. For automated CCS instruments, ensure that a minimum of 55 mL of the sample to be tested is placed in a suitably sized container and insert the injection tube from the instrument into this container; care should be taken to ensure that the injection tube does not reach to the bottom of the container, in order to avoid drawing any sediment into the instrument. Identify the test sample in the computer.
12.2.1 For the automatic automated CCS, place the bottles in the sample tray. Identify the position in the tray and test temperature for each test sample in the computer program. It is recommended that calibration test samples or secondary standards be placed in the sample tray and identified as calibration check samples.
12.2.2 When check runs of the calibration test samples or secondary standards do not fall within more or less 5 % of the expected value, the results are considered suspect.
12.3 Start the run using the computer program. The new sample will automatically displace the previous test sample in the viscometric cell without the use of solvent. The temperature control and running of the CCS motor will be computer controlled. The rotor speed measurement and viscosity calculation for the test sample are performed and displayed by the computer.
12.3.1 Heating and solvent cleaning of the viscometric cell are not necessary to allow injection of the next sample.
13. Report
13.1 Manual CCS Report
13.1.1 Calculate the apparent viscosity of the test sample in mPa•s from the graph referenced in 10.1.4 or Eq 2 in 10.1.4.1.
13.1.2 Report the value determined in 13.1.1 to the nearest 10 mPa(s) and the test temperature.
13.2 Automated CCS Report
13.2.1 Report the calculated viscosity and temperature as displayed on the computer monitor. The value displayed is rounded to the nearest 10 mPa•s.
