The national standard GB/T18403.1-2001 issued in 2001, Gas Performance Analyzer Performance Part I: General Principles is the latest standard on the performance characteristics and test procedures of online analytical instruments. Because the new national standard has certain limitations (limited to gas analyzers and is a common standard), and the previous standards are still valid, considering the link and continuation between the old and new standards, and taking into account the industry habits, this section It is written in the same way as the old and new standards, so that the reader has a more comprehensive understanding, and also helps to understand some of the contents of the new national standard.
Performance and performance characteristics
Performance refers to the extent to which the instrument reaches its intended function. Performance charac-teristic refers to the expression of certain parameters and their quantification to determine the performance of the instrument.
Quantitative representations of performance characteristics are often described by a certain magnitude, tolerance, and range, which is what we usually call performance metrics.
There are many types of online analytical instruments, and their functions are various. Their performance characteristics are broad, but they can be roughly divided into the following two categories.
One type of performance characteristics is related to the operating range and operating conditions of the instrument. The working range mainly refers to the measurement object, measurement range, range, etc. The working range is different for different analytical instruments. Working conditions include adaptability to environmental conditions, requirements for sample conditions, and the like. The online analytical instrument is directly installed in the industrial field to continuously analyze the process materials. Therefore, the adaptability of the instrument to environmental conditions (including explosion-proof performance and environmental protection performance) is strict, and the sample conditions (temperature, pressure, flow rate) Etc.) The requirements are also strict, and the performance characteristics of the working conditions are quite different from those of the laboratory analytical instruments.
Another type of performance characteristic is related to the instrument's analytical signal, the instrument's response value. Such performance characteristics may differ for different analytical instruments, values ​​and dimensions, but their definitions are common and are common performance characteristics of different types of analytical instruments. They are an important basis for comparison of the same type of analyzers. Evaluate important parameters of the basic performance of the analytical instrument. Such performance characteristics are mainly accuracy, sensitivity, stability, repeatability, linear range, response time and so on.
Performance and performance characteristics
Performance refers to the extent to which the instrument reaches its intended function. Performance charac-teristic refers to the expression of certain parameters and their quantification to determine the performance of the instrument.
Quantitative representations of performance characteristics are often described by a certain magnitude, tolerance, and range, which is what we usually call performance metrics.
There are many types of online analytical instruments, and their functions are various. Their performance characteristics are broad, but they can be roughly divided into the following two categories.
One type of performance characteristics is related to the operating range and operating conditions of the instrument. The working range mainly refers to the measurement object, measurement range, range, etc. The working range is different for different analytical instruments. Working conditions include adaptability to environmental conditions, requirements for sample conditions, and the like. The online analytical instrument is directly installed in the industrial field to continuously analyze the process materials. Therefore, the adaptability of the instrument to environmental conditions (including explosion-proof performance and environmental protection performance) is strict, and the sample conditions (temperature, pressure, flow rate) Etc.) The requirements are also strict, and the performance characteristics of the working conditions are quite different from those of the laboratory analytical instruments.
Another type of performance characteristic is related to the instrument's analytical signal, the instrument's response value. Such performance characteristics may differ for different analytical instruments, values ​​and dimensions, but their definitions are common and are common performance characteristics of different types of analytical instruments. They are an important basis for comparison of the same type of analyzers. Evaluate important parameters of the basic performance of the analytical instrument. Such performance characteristics are mainly accuracy, sensitivity, stability, repeatability, linear range, response time and so on.
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