Equipment, instruments and other devices 8.1 Equipment, instruments and other devices should be designed, constructed, adapted, located, calibrated, qualifi ed, verifi ed and maintained as required by the operations to be carried out in the local environment. The user should purchase the equipment from an agent capable of providing full technical support and maintenance when necessary The laboratory should have the required test equipment, instruments and other devices for the correct performance of the tests and/or calibrations, validations and verifi cations (including the preparation of samples and the processing and analysis of test and/or calibration data Equipment, instruments and other devices, including those used for sampling, should meet the laboratory’s requirements and comply with the relevant standard specifi cations, as well as being verifi ed, qualifi ed and/or calibrated regularly (see Part two, section 12). 9.