T/LZZLXH 033-2020 Laboratory product testing full process record management guideline

Scope

Scope: This standard provides guidelines for the management of laboratory product records and testing records. This standard applies to the design, use, and management of testing laboratories and testing records, and meets the requirements of GB/T 27025, "General Requirements for the Competence of Testing and Calibration Laboratories", and the National Certification and Accreditation Administration's "Evaluation Criteria for the Qualification of Inspection and Testing Institutions" for the management of laboratory products and testing records. Main technical content: 6.7 Testing process records a) Generally, the method documents used for testing contain detailed provisions for the process. Laboratories shall use concise and logically structured written records to document the actual testing operation process, in order to demonstrate that the testing process meets the requirements of the reference documents. For example, a method document may require that the sample be dried in an oven at (105±5)°C for 2 hours. The laboratory shall record five data points: the start time of drying, the end time of drying, the initial temperature, the intermediate temperature, and the end temperature of drying, in order to demonstrate that the drying process meets the method requirements. b) When designing process record forms, the written description section can be fixed, leaving blank spaces for numerical entries. During recording, testing personnel only need to fill in the data. c) Generally, the instrument settings recorded during a certain period of time will not change. These records can be fixed. d) Calibration process records shall record the concentration points set in the calibration curve, the instrument response signal value, and the expression or graph of the calibration function and correlation coefficient. If necessary (if available), there should also be records evaluating the results of the calibration curve meeting the quality control requirements. e) Records of dat

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