A strengthening apparatus, the management of the measurement standard apparatus
To strengthen the instruments, standards of measurement, management is to ensure that the measurement of quality of work. First, instruments, standards of measurement to be in strict accordance with the requirements of the quality manual for checking the calibration to ensure that the equipment, standards of measurement within the period of strict regular operation and accuracy. Secondly, during the verification of some commonly used instruments on a regular basis to ensure that the use of the good performance to normal operation. Strictly eliminate the use of measuring instruments and equipment over the verification period. Furthermore, the standards of measurement of the gun and calibration should be based on the level of accuracy class to select the required inspection departments, such as the National Institute of Metrology, industry center metering station, the provincial metrological verification department.
In addition, to effectively prepare the maintenance of instruments and standards of measurement, which is very important to guarantee the quality of the small metrological verification. Instruments and standards of measurement, maintenance work should be conducted regularly, dust, rust and other maintenance work on the instruments and standards of measurement in accordance with maintenance procedures in the program files. Good maintenance can not only maintain the standards of measurement and instrument measurement accuracy, but can also prolong its life.
2 to ensure the verification and calibration of the original records, the certificate of quality
The measurement is a scientific and rigorous work, test, calibration original records to the issuance of certificates, each link so careless. Real evidence, intact, and the accuracy and reliability of the original records the most basic requirements.
First of all, qualified original records should have the authenticity, completeness and accuracy.
Authenticity is to faithfully reflect the time for checking the calibration of the actual situation, reflecting the test, calibration data in the process, phenomenon, the use of the real situation of measuring instruments, equipment and environmental conditions of the original creek was recorded. To maintain the authenticity requires the measurement of staff must be based on scientific attitude, seriously - times test, the calibration process, and each measurement data, never
Allow sloppy falsification phenomenon.
Integrity is to create a standardized and complete original record form, the form of the test items as a detailed, sufficient amount of information to meet the needs of test and calibration certificate issued. Fill in the writing of the original record straight, clear and easy identification of the page to maintain a clean and tidy. Error correction to be standardized at the same time, each - the error should be designated to change when an error occurs when the record can not be obliterated off to avoid illegible or disappear, and the correct values ??to fill in next to it. All changes to the record there should be changes to the person's signature or signature abbreviation, its responsibility.
The accuracy is measured at the core of the accuracy of test, calibration work lost its meaning. The accuracy of the establishment in addition to the standards of measurement depends on the high accuracy and functioning instrument, also in accordance with the paste in the quality of different test methods and measurement of staff. Questions about the test and calibration data to be used different measurement methods and measuring instruments to be verified to ensure that test and calibration accuracy of the data. In terms of a measurement piece, depending on the accuracy, take can best meet its measurement accuracy requirements of measurement methods and measuring instruments.
Verification and calibration certificate is the measurement of staff produced "product" is a concentrated expression of the measurement quality of the work. Pass the test and calibration certificate format should be standardized, the content should be complete, clear, accurate, objective and should contain all the information of the test and calibration results. Name, as used in the test, calibration standards of measurement; measurement standards certificate number; equipment name, model number; on the basis of technical documentation number, name; test, calibration of environmental conditions (such as temperature, humidity, etc.); test audit, the signature of the person in charge; use of the certificate is valid; uncertainty of measuring results and to indicate traceability and so on.
Measurement uncertainty is not sure the extent of the measurement results, to indicate the trustworthiness of measurement results. Recognize the limitations of lack of capacity, any measurement can not be absolutely accurate, there must be error. Uncertainty is to establish a new concept in error based on the theory used to indicate the quality of the measurement equipment. The smaller the uncertainty, the higher the quality of the measurement results; Conversely, the lower the quality of the measurement results, the lower its value in use. Therefore, during the measurement and the measurement results must take into account the measurement uncertainty. Strictly speaking, do not know the uncertainty of measurement results can not be compared with each other, do not have use value, does not make sense.
Verification and calibration certificate should be able to be traced back to national measurement reference and in accordance with the standard description of measurement. Can not be traceable to national measurement benchmark case, the laboratory shall provide satisfactory evidence of the results, such as participating in the validation of an appropriate inter-laboratory comparisons or proficiency.
Uncertainty and that traceability is given to meet the basis of measurement of lower-level laboratory or testing requirements, to meet IS0/IE017025 testing and calibration laboratories generic requirements in quality management and quality assurance of test and calibration certificate that meets the requirements of IS09001.
Environmental conditions to ensure that the verification and calibration work to meet the requirements
The environmental conditions of the verification and calibration work must meet the need for measurement, measurement of indoor and outdoor environment should not affect the accuracy, reliability, and validity of measurement results. Measurement should be equipped with appropriate facilities to monitor environmental conditions, recording, detection accuracy of the factors that may affect the control, where necessary, appropriate and reasonable verification. General ambient temperature of 20 ± o. About 5 ℃ ambient humidity around 60%. Measurement studio must be dustproof, shockproof, anti-corrosion, anti-pollution and anti-noise and so on. Can not meet the needs of the environmental conditions to give the test and calibration of many unfavorable factors, each one requires less than the required conditions will have a direct impact on the accuracy, reliability and validity of the measured value. Meet the needs of environmental conditions is the most basic conditions of test and calibration, measurement studio should have good internal management, this management is not limited to health and clean, and should also include a variety of security measures.
4 metering staff of technical service quality and ideological quality
Measurement staff business quality and ideology is to make the protection of the verification and calibration work. Verification and calibration of a scientific, legal, and policy work. Human, machine, material, method, ring personnel is the first advanced equipment but also with good quality staff to operate, the measurement of the formulation of laws and regulations, and must rely on the strict implementation of the measurement of staff, in order to play a role. This requires that personnel engaged in metrological work must not only have good technical and professional qualities, must also have a high ideological quality.
First of all, the new posts the measurement of staff in accordance with the provisions of the program file, go through rigorous training, assessment, before the holder posts. Assessment results have a record. Secondly, should be equipped with adequate scope of work and effort to adapt the measurement of staff, these metrology staff must go through the necessary education and training, technical knowledge condition and professional experience. But also regularly on the measurement of staff training and learning in a variety of business, standards and measures laws, regulations, etc., to improve the quality of their own ideological and constantly update their knowledge and improve the technical level of business to adapt and metrological verification, calibration and measurement needs of their work to meet the new century.
In short, the bearing measurement standard equipment, test and calibration is a delicate and complex, many factors, and involves a wide range. Make these aspects of work carefully to ensure the measurement quality of the work in order to effectively ensure the quality of the bearing standard equipment verification and calibration work, and promote the production technological level of the bearing.



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