118Expanded programs6.8.4.1 AQA Standard configurationThe working method, photometers, and accessories can bechecked by the analysis of a standard solution.1. Press AQA StandardA screen with standard sets opens (not available on allmodels), alternatively an individual standard can be defined.2. Select Options>New to define a new standard.Note: If a standard has not yet been defined, in some models thealphanumeric keypad is displayed directly.3. Enter the name of the standard solution and confirm withOK.4. Enter the concentration unit and confidence interval bytouching the corresponding fields.5. Press OK to confirm the entry.6. All the standard solutions entered are shown on the screen.7. Select Options>Edit to alter the settings.8. Select Options>Delete to delete the standard. SelectOptions>New to define a new standard.
