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Elements and Performance Criteria

1. Prepare solutions
   • Select appropriate procedure for solution preparation
   • Select equipment, materials and solvent of specified purity
   • Measure appropriate quantities of reagents for solution preparation and record data
   • Select and assemble specified laboratory equipment and appropriate grade of glassware
   • Perform specified dilutions
   • Prepare solutions to achieve homogeneous mix of the specified concentration
   • Label and store solutions to maintain identity and stability
2. Select equipment, materials and solvent of specified purity
3. Measure appropriate quantities of reagents for solution preparation and record data
4. Select and assemble specified laboratory equipment and appropriate grade of glassware
5. Perform specified dilutions
6. Prepare solutions to achieve homogeneous mix of the specified concentration
7. Label and store solutions to maintain identity and stability
8. Standardise and use volumetric solutions
   • Assemble appropriate laboratory equipment
9. Perform serial dilutions as required
10. Standardise the solution to the required specified range and precision
11. Use standard volumetric solutions to determine concentration of unknown solutions
12. Calculate and record data
    • Calculate specified concentrations
13. Use authorised procedure if data is to be modified
14. Estimate and document uncertainty of measurement in accordance with workplace procedures
15. Record all relevant details according to laboratory procedures and report results
16. Report concentration with appropriate units
17. Monitor the quality of laboratory solutions
    • Check solutions for visual deterioration and expiry date
18. Record details and label solutions according to laboratory procedures
19. Maintain a safe work environment
    • Use established safe work practices and personal protective equipment (PPE) to ensure personal safety and that of other laboratory personnel
20. Clean up spills using appropriate techniques to protect personnel, work area and environment
21. Minimise generation of waste and environmental impacts
22. Ensure the safe collection of laboratory and hazardous waste for subsequent disposal
23. Store equipment and reagents as required