The need to purchase instruments first put forward an application, reported to the relevant leaders for approval. Investigate the supplier's qualification, reputation, quality assurance capabilities, to understand the product's technical performance indicators and the use of the situation, and the establishment of supplier files.
Second, the acceptance of instruments and equipment
Check the correctness of the goods received according to the ordering contract, the certificate of conformity of the instruments and equipment, instruction manuals, maintenance manuals, system software and spare parts list is complete. According to the instrument performance index manual to develop appropriate methods, according to the standard operating procedures for stand-alone or system for experimentation, to prove that the technical parameters of the equipment can meet the specified requirements. And keep the original records of the test.
Three, the instrumentation file
The basic content of the instrumentation file is as follows: ① instrumentation registry, including the name of the instrument, the name of the manufacturer, the instrument model, the factory number, storage location, date of production, laboratory date; ② Random technical documents, including certificates of conformity, manuals, packing lists; ③ Acceptance records, instrumentation calibration/calibration certificates The use of records, maintenance records, damage, failure and repair, and scrap sheets.
Four, the state of the instrumentation labeling
Instrumentation should be clearly marked to indicate its "calibration / calibration" status, so that the state of the instrument at a glance, easy to manage. State marking is generally divided into the following categories: ① green marking, indicating that the instrumentation has an official certificate of measurement and calibration of qualified reports, in normal use. ② yellow mark, indicating that some of the functions of the instrumentation has been lost, but the detection of normal functions used in the work, and by the calibration, in use. ③ red mark, indicating that the instrumentation has been damaged or calibrated by the unqualified, in a state of deactivation.
V. Instrumentation traceability?
All instruments and equipment belonging to the scope of mandatory calibration, should be designated by the verification/calibration organization for verification, verification/calibration can be used only after passing. For easy to change, drift rate, environmental requirements are more stringent or more frequent use of instruments and equipment need to consider the period of verification, through the period of verification, once found to produce deviation, to take timely measures such as repair and maintenance, in order to ensure the accuracy of the test data. During the verification method, generally can be utilized to assess the blind samples, standard material verification or spiked recovery methods. The data are analyzed and evaluated, and can be used when the requirements are met. The time of period verification, in the middle of two cycles of verification day and the emergence of suspicious data for period verification, to determine whether the instrumentation status is normal, the verifier should make detailed records. After the period of verification to prove that there are problems with the instrumentation must be further analyzed, such as determining its performance is unqualified, the instrument malfunction, it should be affixed to the deactivation mark, as soon as possible on the instrument for maintenance, so as not to delay the normal use of the instrument.
Six, do a good job of routine maintenance
The daily use of instrumentation and equipment operators of large precision instruments and equipment, must be appropriate theoretical operation of the training, the training is qualified before taking up their duties, untrained personnel are not allowed to use at will. Operators should be in strict accordance with the operating procedures of the instrument and equipment, and before, during and after the use of the necessary checks and records, and at the same time should do a good job of routine maintenance, less frequent use of large-scale instrumentation and equipment and electronic instruments not used for a long time, should be opened at least once a month to check and do a good job of maintenance records.