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Ndumiso Sabelo Biyela has a diverse work experience in the field of quality assurance and laboratory analysis. In 2014, they worked as a gas mixture analyst at Air Liquide Gas AB, where they were responsible for analyzing gas mixtures. This role lasted until August 2017.

In October 2017, Ndumiso joined A-GAS South Africa as a senior laboratory analyst. Their responsibilities included analyzing refrigerants using GC-(TCD) and conducting moisture, acidity, HBR, and chloride analysis according to AHRI 700 specifications.

In June 2021, Ndumiso transitioned to A-Gas, where they held the position of senior lab analyst and technical signatory for ISO-17025 accreditation.

As of 2023, Ndumiso is currently working at A-GAS South Africa as a quality assurance manager. Further details about this role, such as start and end dates, are not provided.

Ndumiso Sabelo Biyela has a diverse education history in the fields of laboratory systems, chemistry, chemical technology, metrology, and calibration. They first attended SANAS in 2015, where they studied Laboratory Systems with a focus on ISO 17025. From 2010 to 2013, they pursued a Bachelor's Degree at the University of KwaZulu Natal, majoring in Chemistry and Chemical Technology. In 2016, they obtained a Level 2 NQF qualification from CHIETA. In 2017, Ndumiso Sabelo Biyela gained a Mertcert from the NLA in Metrology. They also completed several short courses and certifications, including Method Validation in Analytical and Calibration at NLA in 2015, Uncertainty of Measurements at the National Laboratory Association in the same year, and Introduction to Measurements at the National Laboratory Association. Additionally, they pursued Harzard Identification and Risk Assessment through IRCA and completed the CAP auditors course in Internal Auditing, although specific dates for these qualifications are not provided.