Injection needle flow tester is an instrument used to detect the flow rate of injection needles, and its technical parameters have an important impact on the use of the instrument and the test results. In this article, according to the GB15811-2016 standard, the technical parameters of the injection needle flow tester will be introduced.
First, the scope of the flow test.
The flow test range of the needle flow tester is the maximum and minimum flow rate that the instrument is capable of testing. Different instruments have different test ranges, so it is necessary to choose the right instrument according to the actual needs. In the GB15811-2016 standard, the flow test range is usually expressed in units such as "ml s" or "ml min".
Second, the stability of the flow.
Flow stability refers to the ability of a needle flow tester to maintain a steady flow over a long period of time. A stable instrument can provide more accurate test results, so it is important to pay attention to its flow stability when choosing an instrument. In the GB15811-2016 standard, flow stability is usually expressed in units such as "%" or "ml min".
3. Pressure range.
The pressure range of the needle flow tester refers to the maximum and minimum pressures that the instrument can withstand. During the test, the pressure range of the instrument should be able to meet the pressure range required for the test sample. In the GB15811-2016 standard, the pressure range is usually expressed in units such as "MPa".
Fourth, pressure accuracy.
Pressure accuracy refers to the accuracy with which the needle flow tester measures the pressure during the test. Instruments with high accuracy are able to provide more accurate test results, so it is important to pay attention to the pressure accuracy when selecting an instrument. In the GB15811-2016 standard, pressure accuracy is usually expressed in units such as "%" or "MPa".
5. Temperature range.
The temperature range of the needle flow tester refers to the range within which the instrument can work normally at different temperatures. Since changes in temperature during the test may have an impact on the test results, the temperature range of the instrument should be able to meet the different temperature conditions required for the test. In the GB15811-2016 standard, the temperature range is usually expressed in units such as "".
6. Repeatability error.
Repeatability error is the error that occurs when a needle flow tester tests the same sample multiple times. The smaller the repeatability error, the better the repeatability of the instrument and the higher the accuracy of the test results. In the GB15811-2016 standard, repeatability error is usually expressed in units such as "%" or "ml min".
7. Operation interface.
The operation interface refers to the human-computer interaction interface on the injection needle flow tester, including buttons, display screens, etc. The operation interface should be simple and easy to use, so that users can operate and set parameters. In the GB15811-2016 standard, the operation interface is usually represented by a graphical interface or a text interface.
8. Size and weight.
The size and weight of the needle flow tester are also factors to consider when choosing an instrument. Instruments that are too large may take up more lab space, while instruments that are too heavy are less convenient to move and handle. In the GB15811-2016 standard, dimensions and weights are usually expressed in units such as "mm", "cm", "kg", etc.
9. Power supply and power consumption.
The power and power consumption of the needle flow tester are also factors to consider. The power supply should be able to meet the needs of the instrument to function properly, while the power consumption will affect the energy efficiency ratio and cost of use of the instrument. In the GB15811-2016 standard, power and power consumption are usually expressed in units such as "V", "MA", "W", etc.
In short, the above is an introduction to the technical parameters of the injection needle flow tester in the GB15811-2016 standard, hoping to help you better understand and use this instrument.