ISO 17020 should not be confused with ISO 9001, which is specific to quality management systems. ISO 9001 does not require evaluation of the technical competence of an inspection body, whereas ISO 170210 does, so it should not be regarded as an ‘acceptable’ alternative to ISO 17020.
The standard covers all aspects of operations:
Much the same as ISO 17020 above, ISO 17025 looks at all the requirements testing and calibration laboratories and testing organisations have to meet to prove that they operate a quality system, are technically competent and can generate technically valid results. This standard applies to everything from test equipment to data sampling and sets out valid specifications to improve an organisation’s quality assurance systems and as a result, their quality control. Key topics include testing and calibrations using standard, non-standard and laboratory-developed methods