Libobotsi Joyce Koloi

Implemented and maintained a robust record-keeping system using Pastel for bulk load results and COAs, enhancing traceability and compliance.

Conducted weekly deviation checks on viscosity meters (600R) and performed monthly instrument calibrations/validations, ensuring precise measurements and data accuracy.

Developed and validated new laboratory test methods, collaborating with the Laboratory Manager to revise and update procedures annually for improved efficiency.

Managed routine and non-routine testing of customer and production finished products, calculating blended product filling weights and ensuring timely SANBS proficiency testing submissions.

Prioritized and enforced Flexilube's safety standards, actively reporting unsafe practices and equipment faults to maintain a secure working environment.

Performed comprehensive analysis of received, labeled, and analyzed samples, strictly adhering to established procedures, policies, and health & safety guidelines.

Executed equipment calibrations and quality checks according to specified procedures, consistently ensuring accurate and reliable results.

Organized and securely stored all chemical substances, fluids, and compressed gases in compliance with safety instructions, maintaining a safe and orderly environment.

Recorded all analytical data and results with high accuracy and responsibility in specified forms, contributing to robust QA/QC protocols.

Performed detailed coal preparation processes and analyses, including sieve analyses, crushing, splitting, and pulverization of samples.

Executed moisture analyses using drying ovens and determined sample molecular weight via Mass Spectrometry, ensuring high accuracy.

Maintained ISO Accreditation by consistently performing tasks according to current Standard Operating Procedures (SOPs), upholding rigorous quality standards.

Verified weighing balances daily and determined specific energy output using a bomb calorimeter, contributing to precise data reporting.

Prepared and analyzed samples according to SOPs, contributing to the testing of elements for customer and international standard compliance.

Operated and maintained advanced laboratory equipment, including GC, HPLC, Metrohm 899 Karl Fischer coulometers, BAUR dielectric testers, and FTIR Perkin Elmer BX System.

Adhered strictly to stipulated timelines, consistently meeting deadlines for sample analysis and reporting results.

Conducted wet chemistry analysis and compiled basic quality reports, ensuring accuracy and contributing to Good Laboratory Practices.

Operated diverse analytical instruments including Gas Chromatography, Ion Chromatography, Auto titrator, UV Spectroscopy, pH meter, and Atomic Absorption Spectroscopy for accurate sample testing.

Performed good laboratory practices within a 17025 accredited environment, conducting analyses of silica, chlorides, sulphates, ammonia, and nitric acid.

Provided essential maintenance and calibration services for chemistry on-line and laboratory analyzers, ensuring adherence to chemistry standards and procedures.

Monitored and controlled systems chemistry, including precise water sample collection according to prescribed SOPs.