Why do torque wrenches need to be calibrated? Is it necessary to have a third-party calibration agency do the testing and what are the benefits of using a torque wrench to do calibration? This is a problem often encountered by torque wrench manufacturers (units). For the “why†problem, professional instrument calibration agencies and third-party testing and calibration agencies concluded that the reasons why torque wrenches need to perform calibration and calibration are mainly due to the following aspects: traceability, uncertainty, reliability, and measurement Traceability.
First, traceability
If the torque wrench involves similar measurements, perhaps the measurement results are most useful at different times, at different locations, by different people using different torque wrenches. This measurement allows the manufacturing process to keep control from one day to the next, from one plant to another. Manufacturers and exporters need such measurements, to know that they will meet the customer's requirements.
In order to ensure the measurement of units or SI units that can be used in China, it defines a system of measurement units that covers measurement, and we want to make this relevant every day. For example, it includes definitions for meters, second, and kilograms. Anyone who wishes to have SI with their measurement results only needs to send the instrument MSL and it is more than the national standard. The comparison process is called calibration and the results are listed on the calibration certificate. The "second-tier" laboratory, calibrated by MSL's own standards, can also be calibrated.
Most countries are calibrating laboratory accreditation systems. Certification is the accreditation of a laboratory's ability to calibrate, test, measure instruments or product certification bodies. Make an assessment of the standards set by international standards. To compare the measurements, they must share a common measurement system.
Second, uncertainty (how accurate measurement)
Ultimately, all measurements are used to help decision making, and poor quality measurements result in poor quality decisions. The uncertainty in the measurement is a propagation estimate of the value of a quantity to which the value can be reasonably attributed. It is a measure of quality and provides means to assess and reduce the risk of decision-making errors and possible consequences.
For example, we may need to determine if the mower shaft diameter is too large, too small or just fine. Our goal is to balance the cost of rejecting good shafts and customer complaints if we accept the wrong shaft, for an accurate but cost-effective engineering measurement system. The measurement of uncertainty in making these decisions is just as important as the measurement itself.
Measurements with the above uncertainties can be compared to other reported uncertainties in your certificate which are necessary information for you to calculate your measurement uncertainty. In addition, we have given some guidance on how to explain the uncertainty, and introduced the uncertainty in measurement calculations. When measurements are traceable, they can be related to an approved measurement system, through an uninterrupted comparison chain, each with the stated uncertainty.
Third, reliability
Many measuring instruments read the SI units directly and have the specified accuracy greater than most tasks required. With such tools, corrections and uncertainties are negligible and users simply want to know that the instrument is reliable. Unfortunately, a large number of instruments are not available. About 6 instruments that are sent to the MSL calibration are judged to be unreliable or unsuitable for some purposes. This failure rate is typical, and the cost or complexity of the most experienced calibration laboratory and instrument is not relevant.
Fourth, to achieve the company's measurement traceability
Many of the actual benefits, such as color, loudness, and comfort are difficult to define because they relate to human attributes. Other conditions such as viscosity, flammability, and thermal conductivity are sensitive to measurements under these conditions and may not be able to track the SI units of these measurements. For these reasons, the international surveying community established standards (programs) for defining documentaries, how such quantities are measured in order to provide a means to compare the quality of goods and to ensure that safety and hygiene requirements are met. In order to make the measurement data traceable, three elements are needed:
1. How should the quantity of appropriate and accepted definitions be measured?
2. A calibrated measuring instrument,
3. Who can explain the standard or procedure and use the instrument's supervisor.
Over the past 20 years, Yamano's quality management system has always revolved around the company's development strategy, accompanied by Chu-Cheng’s development round after round of changes, constantly enriching his breadth, depth, and breadth, and also trying to apply theory and practice again and again. A breakthrough, experienced numerous customer complaints and returns, but it is precisely because of experiencing such pain, Chu Cheng's quality management system has gradually grown up and mature!
First, traceability
If the torque wrench involves similar measurements, perhaps the measurement results are most useful at different times, at different locations, by different people using different torque wrenches. This measurement allows the manufacturing process to keep control from one day to the next, from one plant to another. Manufacturers and exporters need such measurements, to know that they will meet the customer's requirements.
In order to ensure the measurement of units or SI units that can be used in China, it defines a system of measurement units that covers measurement, and we want to make this relevant every day. For example, it includes definitions for meters, second, and kilograms. Anyone who wishes to have SI with their measurement results only needs to send the instrument MSL and it is more than the national standard. The comparison process is called calibration and the results are listed on the calibration certificate. The "second-tier" laboratory, calibrated by MSL's own standards, can also be calibrated.
Most countries are calibrating laboratory accreditation systems. Certification is the accreditation of a laboratory's ability to calibrate, test, measure instruments or product certification bodies. Make an assessment of the standards set by international standards. To compare the measurements, they must share a common measurement system.
Second, uncertainty (how accurate measurement)
Ultimately, all measurements are used to help decision making, and poor quality measurements result in poor quality decisions. The uncertainty in the measurement is a propagation estimate of the value of a quantity to which the value can be reasonably attributed. It is a measure of quality and provides means to assess and reduce the risk of decision-making errors and possible consequences.
For example, we may need to determine if the mower shaft diameter is too large, too small or just fine. Our goal is to balance the cost of rejecting good shafts and customer complaints if we accept the wrong shaft, for an accurate but cost-effective engineering measurement system. The measurement of uncertainty in making these decisions is just as important as the measurement itself.
Measurements with the above uncertainties can be compared to other reported uncertainties in your certificate which are necessary information for you to calculate your measurement uncertainty. In addition, we have given some guidance on how to explain the uncertainty, and introduced the uncertainty in measurement calculations. When measurements are traceable, they can be related to an approved measurement system, through an uninterrupted comparison chain, each with the stated uncertainty.
Third, reliability
Many measuring instruments read the SI units directly and have the specified accuracy greater than most tasks required. With such tools, corrections and uncertainties are negligible and users simply want to know that the instrument is reliable. Unfortunately, a large number of instruments are not available. About 6 instruments that are sent to the MSL calibration are judged to be unreliable or unsuitable for some purposes. This failure rate is typical, and the cost or complexity of the most experienced calibration laboratory and instrument is not relevant.
Fourth, to achieve the company's measurement traceability
Many of the actual benefits, such as color, loudness, and comfort are difficult to define because they relate to human attributes. Other conditions such as viscosity, flammability, and thermal conductivity are sensitive to measurements under these conditions and may not be able to track the SI units of these measurements. For these reasons, the international surveying community established standards (programs) for defining documentaries, how such quantities are measured in order to provide a means to compare the quality of goods and to ensure that safety and hygiene requirements are met. In order to make the measurement data traceable, three elements are needed:
1. How should the quantity of appropriate and accepted definitions be measured?
2. A calibrated measuring instrument,
3. Who can explain the standard or procedure and use the instrument's supervisor.
Over the past 20 years, Yamano's quality management system has always revolved around the company's development strategy, accompanied by Chu-Cheng’s development round after round of changes, constantly enriching his breadth, depth, and breadth, and also trying to apply theory and practice again and again. A breakthrough, experienced numerous customer complaints and returns, but it is precisely because of experiencing such pain, Chu Cheng's quality management system has gradually grown up and mature!
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