Common glass measuring instruments calibrator examination questions (A paper)
Unit Name Achievement Examining Teacher
I. Fill in the blanks:
1. Liquid has no fixed shape when it is at rest, and always tends to move to ( ).
2. In a container, the liquid always occupies all the lower space, and its shape is determined by the shape of ( ).
3. At present, our country is used for capacity determination by three methods, measurement method, capacity comparison method and ( ).
4. Measuring instruments are basically categorized by their manufacturing materials, which are divided into glass measuring instruments and ( ) measuring instruments.
5. Volumetric measurement is the measurement of the quantity of various liquids with a measuring device ( ).
II. Multiple choice questions:
1. Volume comparison method of verification, the following features:
(1) simple operation, rapid verification, high efficiency.
(2) Because of the precision of the equipment used, the environment must be a constant temperature, the operation process is complex.
(3) The capacity value measured by the gauge is directly engraved on the wall of the gauge, which is obvious and intuitive.
(4) The environmental conditions are not high, room temperature can be room temperature.
(5) Has a high calibration accuracy, can meet the actual needs.
III. Questions and Answers
1. What is capacity testing and capacity calibration?
2. What is the calibration cycle? What is its function.
3. What is the basic unit of capacity measurement? What is the unit of capacity measurement? What is the quantitative relationship between them?
IV. Calculation questions:
1. In thermostat 21, check 100 volumetric flasks, the average of the two tests 99.83 (g), check the table 99.695 (g), calculate the volumetric flask error is how much, whether qualified.
2. How many milliliters is 1 cubic decimeter equal to the unit of volume?
Common Glass Measuring Instruments Exam Questions (Volume B)
Unit Name Achievement Exam Teacher
I. Fill in the blanks:
1. Glass measuring instruments are basically divided into two categories: standard measuring instruments and workload instruments, and the workload instruments are divided into commonly-used glass measuring instruments and special ( ).
2, the gauge uniformly distributed error, its calibration of the amount of different instruments depending on the different errors, by the size of the error is not equal to determine the different () of the gauge.
3, the workload in the common glass gauge, is ( ), ( ), ( ), ( ), ( ), ( ) and ( ) and other commonly used in the laboratory glass gauge.
4, for small volumes, the ( ) error in the use of volume values comes from the residue of the liquid, that is, the liquid stained on the inner wall of the gauge.
5, scale measurement method, currently only applied to large () workload device verification and calibration.
Second, multiple-choice questions:
Measurement method is to weigh the mass of the method to measure the capacity of the gauge, which is characterized by several ( )
A, high work efficiency, can use less time, simpler measuring equipment, for a large capacity value of the gauge calibration
B, due to the use of sophisticated equipment, the environment must be required to be at a constant temperature, the operation process is complex
C, because the balance and weights have a high degree of accuracy, can ensure that the calibration results are reliable
D, the measurement method is only used for standard measuring instruments and allowable error of less than 0.005ml of the workload of the verification of equipment
E, the measurement method uses distilled water, so the measurement error brought about by the small
Third, the question and answer questions:
1. standard measuring instruments and the workload of instruments What are the differences between standard gauges and workload gauges?
2. How many ways to check the capacity of glass measuring instruments? What is the principle of each? What are the possible causes of error?
3. How to read the liquid level correctly? The surface of the aqueous solution to where the reading position?
Fourth, calculation questions:
1. At a constant ambient temperature (<24.5 ℃), the calibration of a single labeled pipette 1.0 ml, the average of the two weighing value of 0.9952 (g), check the table to get 0.99618 (g), the pipette to the value of the error is how much?
2. Volume unit 1 liter and 1 cubic decimeter of water, converted to legal units of measurement, the sum of the two for how many milliliters?
⑵ There is no software on the management of measurement management system management, which gives a thought
There is software in this regard. Suggest you can look at the Beijing State Quality Union Enterprise Management Center Measurement Management Information System.
Software and measuring instruments management is similar, but covers the system characteristics of the measurement process management, measurement requirements management, system analysis and improvement functions.
Personally, I believe that the measurement management system is a set of scientific measurement management methods, in fact, the software is not the management of the measurement management system, but in accordance with the management of the measurement management system to design the software business processes and software core functionality points. The core purpose is to optimize the enterprise management process, improve efficiency, and provide management with scientific and favorable data support.
Beijing State Quality Union Enterprise Management Center to do the measurement of the management information system is more professional, the company is a measurement management system consulting company, professionalism is very strong, the software is used in many large-scale manufacturing enterprises with the application. Excerpts from the software is probably introduced as follows:
Measurement Management Information System (MMIS) to ISO10012: 2003 measurement management system requirements for the design of the guiding ideology, the measurement of equipment management as the core foundation of the application, the measurement of the requirements of the management of the overall measurement of the business through the main line in the standardization, scientific management of measuring equipment on the basis of to help enterprises to the measurement of the process of management to enhance.
MMIS
MMIS system after years of customer applications, integration of tobacco, iron and steel, non-ferrous metals, ports, machinery manufacturing, biochemical and other industries of the leading enterprises of the best business practices, is widely used in the market of mature products. The system covers a series of business processes such as measurement equipment management, equipment calibration, certificate management, measurement process management, measurement requirement export, system document management, measurement management system analysis and improvement, data intelligent analysis, and a series of business processes that are y integrated with the actual business of enterprise measurement.
MMIS is not only a set of software systems, but also a management tool, so that our measurement of management work more standardized, process-oriented, refined and efficient operation, and comprehensively improve the overall efficiency of the enterprise measurement of management work, maximize product quality. Of course, the MMIS system itself also contains a lot of industry best practices on behalf of the management concepts, operational modes and operating procedures, can more quickly allow companies to stand at a higher level of measurement management, for the enterprise to establish product quality back to the system to provide perfect data support.
Equipment management
Automatic reminder of the expiration of the equipment - to avoid missed equipment inspection;
Clear equipment status management - in use, out of service, limited to use, re-activation, maintenance, scrapping, transfer, verification, to be confirmed, sealing and other state management. batch generation of inspection plans in accordance with the department batch generation of inspection plans;
inspection plans automatically distributed - the departments can query their own departments need to be sent to the inspection of equipment;
inspection of equipment to complete the batch tally - the inspection of qualified equipment, you can Batch fill in the inspection information;
Automatic adjustment of the effective date - the system will automatically calculate the effective date of the equipment, and automatically adjust the inspection reminder time;
Comprehensive statistical analysis of data - weekly inspection rate, pass rate, control rate, ABC classification statistics.
Comprehensive statistical analysis of data - weekly inspection rate, pass rate, control rate, ABC classification statistics, etc.;
Inspection cost statistics and forecasting - the inspection of the equipment history of the cost of statistical analysis, and can be based on the future of the equipment inspection program to predict the future cost of the situation;
。。。。。。
Measurement requirements export, measurement process management
Measurement requirements export - to the production and management of key control points as the main line, set the process requirements and equipment requirements of the relevant parameters, and automatically generate & lt; measurement requirements export table & gt;
Height of the console account -Establishment of height console account, including parameter value range, allowable error, process specification, measurement purpose, uncertainty, monitoring specification, verification traceability and other information, can be freely added, modified, deleted, query, print reports
Confirmation of the validity of the measurement process. -Establish verification expiration alarm, expiration of automatic statistics and remind the user to confirm the validity of the automatic generation of schedules, and can be categorized query, export, print
Verification (monitoring) history - automatic production of verification (monitoring) history, can be categorized query history
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System document management
Provide standard templates - Provide standard templates for system documents to help enterprises transform system requirements into their own management system;
Top-down document structure - The system of The establishment of system documents adopts a top-down vertical structure, which is in line with the system requirements;
Clear release process - the release of documents is subject to review;
Internal **** enjoyment - remote uploading, rapid retrieval, online browsing, Support for downloading;
Knowledge management platform - to form a knowledge base for enterprise measurement management, and to motivate employees' knowledge **** enjoyment and learning.
External supplier management
Strictly check the external suppliers, through the evaluation, before becoming a qualified external supplier;
Formation of the enterprise's external supplier ledger, it is easy to manage the day-to-day work;
Systematic analysis of the improvement of such functions 。。。。。。
(3) testing equipment and production equipment, measuring instruments in the quality system, how to define the distinction
From ISO9001: 2000 quality management system, production equipment, testing equipment and measuring instruments have been repositioned.
First of all, we need to understand what is the production equipment, that is, the revamped infrastructure: Infrastructure infrastructure: Organization〉 Organization (3.3.1) a set of facilities, equipment and services necessary for the operation. Quality management system standard, 6.1 infrastructure in the provisions of: the organization shall determine, provide and maintain the infrastructure required to achieve product compliance. Where applicable, infrastructure includes: a) buildings, workplaces, and related facilities; b) process equipment (hardware and software);
c) support *** (e.g., transportation or communications).
From the above it can be seen that the infrastructure includes all the facilities required for the production and service, eliminating the former production equipment separately, the purpose of which is because the degree of automation of production equipment is constantly evolving, and many production equipment with testing systems, including testing equipment.
Second, the infrastructure management method
The main is related to three aspects: 1, regular maintenance; 2, damage repair; 3, periodically to determine whether the process capacity to meet.
Third, on the testing equipment and measuring instruments
Quality management system standards, 7.6 Monitoring and measurement devices control organization should determine the need to implement the monitoring and measurement as well as the required monitoring and measurement devices, to provide evidence that the product meets the identified requirements.
This standard will be the original measuring instruments are summarized in the scope of "monitoring and measuring devices", then, what is a monitoring device? What is a measurement device?
In layman's terms, the direct detection of product testing equipment, gauges, instruments are monitoring devices, such devices can be understood. Not in contact with the product, indirectly on the process control is the measurement device, in other words, is the production process equipment for continuous monitoring of the instrumentation, etc., such as: pressure gauges, temperature gauges, flow meters, etc., which are mounted on the equipment, some of them in the purchase of equipment.
Fourth, the monitoring and measuring devices management methods
To ensure that the results are valid, if necessary, measuring equipment should be: a) Against the measurement standards that can be traced back to international or national standards, in accordance with the specified time intervals or calibrated or calibrated before use. When such standards do not exist, the basis for calibration or verification shall be documented; b) be adjusted or re-adjusted if necessary; c) be identified to determine its calibration status; d) be protected against adjustments that could invalidate the measurement results; e) be protected against damage or failure during handling, maintenance, and storage; and, in addition, when the equipment is found to be non-compliant, the organization shall evaluate and document the validity of previous measurement results. The organization shall take appropriate measures for the equipment and any affected products. Records of calibration and validation results shall be maintained (see 4.2.4). When computer software is used for monitoring and measurement of specified requirements, its ability to meet the intended use shall be confirmed. Confirmation shall be performed prior to initial use and reconfirmed as necessary. As you can see, they are positioned differently and managed differently.
⑷ Who can tell me how to establish a measurement management system should be established which measurement management program documents
The establishment of a measurement management system is currently a lot of enterprises following the quality management system, environmental management system, and then embarked on a very important work, the system in the enterprise to improve product quality, resource conservation, reduce emissions, safe production, etc. plays an increasingly The system plays an increasingly important role in enterprises to improve product quality, save resources, reduce emissions, safe production and other aspects, and directly or indirectly affect the improvement of enterprise economic efficiency and enhancement of the core competitiveness of enterprises. Measurement management system is established on the basis of "measurement management system measurement process and measurement equipment requirements" (GB/T9022-2003/ISO10012:2003), this standard by the State General Administration of Quality Supervision, Inspection and Quarantine issued on December 16, 2003, March 1, 2004 implementation. 2005, the domestic began to be based on the standard of enterprises in various industries to carry out the corresponding audit work, the audit body to carry out the audit. Carry out the corresponding audit work, the audit agency for the measurement system certification center, the center's branches in the country is responsible for on-site audits, the center is responsible for reviewing the audit information and issue a certificate of measurement management system certification. The certificate is divided into three levels: AAA, AA and A. Enterprises can establish the system according to the standard requirements and obtain the corresponding certificate. Standard "Measurement Management System Measurement Process and Measurement Equipment Requirements" includes: General Requirements, Management Responsibilities, Resource Management, Measurement Confirmation and Measurement Process Implementation, Measurement Management System Analysis and Improvement. Measurement management system is defined as a set of interrelated or interacting elements necessary to accomplish measurement confirmation and continuous control of the measurement process. The system consists of the control of the designed measurement process, the measurement confirmation of the measurement equipment and the necessary supporting processes. Measurement processes within the system should be controlled and measurement equipment should be validated. Enterprises in the initial establishment of the measurement management system, due to the lack of relevant experience, in practice, no way to start, difficult to have for. This paper introduces the establishment of a measurement management system needs to be done in the focus of the work, including organizational management structure, system documentation, personnel training, measurement equipment classification and management, identification of key measurement processes, system audit and monitoring of the six aspects, in order to help the mechanical manufacturing industry, petrochemical industry, metallurgy, pharmaceuticals and other types of enterprises in the establishment of a measurement management system. First, the structure of the organization and management of the measurement management system organization and management of the structure of the establishment and implementation of the measurement management system is the basis for the work of the top priority. Enterprises should establish an internal measurement management network, measurement management work from top to bottom should be clear levels and responsibilities. System to promote personnel should include the top leadership, management representatives, department heads, specialized *** measurement management personnel, key measurement process operators, product inspection personnel. For the original measurement of weak management work is particularly important for enterprises, requiring personnel at all levels to pay attention to the ideological awareness, clear requirements, fulfill their responsibilities, and play an active role in the operation of the system. Second, the preparation of system documentation system documentation is the embodiment of the measurement management system documented, is the basis for the implementation of the measurement management system. According to the status quo of the management of enterprises, should be based on standards and relevant regulations, specifications, the preparation of the "measurement management system manual", "measurement management system program documents", the key control specifications for the measurement process, large-scale or precision measuring equipment operating procedures, calibration methods for measuring equipment, etc.. In the process of document preparation at all levels, attention should be paid to the degree of integration and compatibility with the quality management system, environmental management system and other systems, such as document control, record control, human resources management and training control, internal audit, management review, corrective and preventive measures, inspection specifications, etc., can be implemented in accordance with the requirements of the quality management system. Third, personnel training into the measurement management system personnel, including measurement management personnel and measurement operators (including measurement equipment calibration/calibration/verification personnel, raw material inspection personnel, semi-finished product inspection personnel, finished product inspection personnel, production process monitoring personnel, other analytical testing personnel, etc.), the training content should include the "Measurement Management System Measurement Processes and Measurement Equipment Requirements" (GB / T19022-2003/ISO). T19022-2003/ISO10012:2003), the enterprise formally promulgated "Measurement Management System Manual", "Measurement Management System Procedure Documents", and the measurement process related to the various types of standards, protocols, specifications and other technical documents, key measurement process specifications, knowledge of measurement uncertainty assessment, legal units of measurement, measurement of the professional basics and other content. The form of training can be divided into internal and external training, training can be classroom theory lectures, on-site practical demonstrations, etc., should pay attention to the combination of theoretical knowledge and practical work to achieve the "real battle". To clarify the training and assessment requirements, and effectively do a good job of the theoretical examination and practical assessment, to achieve "should know", to improve the measurement of personnel at all levels of awareness and measurement capabilities. Fourth, the classification and management of measuring equipment within the measurement of the enterprise's equipment types, a large number, if in accordance with a unified model for its management, is bound to consume a great deal of manpower, material resources, the effect is not necessarily good, it is difficult to effectively play out the corresponding role in the management of measuring equipment. Due to the application of each measurement equipment, measurement parameters are different, so the measurement equipment can be categorized management. Measuring equipment classification management work is each enterprise in the implementation of the system in the process of the largest workload, the most difficult to manage at the same time is the weakest link in the management. In practice, according to the use of measuring equipment, measuring the technical requirements of the parameters, and product quality, such as the relationship between Class A, Class B, Class C classification management, classification principles: 1. Class A measuring equipment: including the national mandatory calibration of measuring equipment, mainly for trade
(5) measurement equipment measurement of what is the validation of the steps
Measurement of the verification of competence is the use of laboratories to determine their testing capabilities. Inter-laboratory comparison to determine its testing capabilities. The so-called inter-laboratory comparison is in accordance with specific pre-specified conditions, the organization of two or more laboratories on the same or similar samples for testing or measurement, and evaluate the results.
The proficiency testing program consists of six types: measurement comparison program, inter-laboratory testing program, split sample testing program, qualitative program, known value program, and part of the process program. Inter-laboratory testing schemes are commonly used by accreditation bodies, statutory bodies and other organizations when applying proficiency testing in the testing field. The steps are:
1
Proficiency testing program design
2
Sample preparation
3
Operation of proficiency testing
4
Statistical processing of proficiency testing data
5
Reporting of proficiency testing results
(6) Measurement management System software