T/HNAEPI 003-2021 Technical requirements and testing methods for on-line monitoring instrument for thallium in surface water

Scope

Main technical content: 4. Technical requirements 4.1 Instrument components - Sampling/measurement unit: Includes water sample, standard solution, reagent, and other introduction parts (containing water sample channels and standard solution channels) and measurement parts. - Reagent storage unit: Used to store reagents required for instrument analysis and testing, such as reaction solutions, calibration solutions, and verification solutions. - Analysis unit: Consists of a reaction module and a detection module, completing the automatic online analysis of the target substances. - Control unit: Includes hardware and software for controlling instrument operation, ensuring the proper functioning of all components during sampling and testing, converting measurement values into electrical signals for output, and completing data processing and transmission. 4.2 Basic requirements - The instrument's identification should comply with the requirements of GB/T 13306, and a label should be fixed in an appropriate and visible location, which should include the following identifiers: - a) Manufacturer's name and address; - b) Instrument name and model; - c) Factory serial number; - d) Manufacture date; - e) Measurement range and quantification limit; - f) Operating conditions. - The display screen should be free from stains and damage. All display interfaces should be in Chinese, with uniform and clear characters, and no dark corners, black spots, rainbows, bubbles, or flickering on the screen. Users should be able to operate the entire process according to the prompts on the display screen. - The chassis shell should be made of corrosion-resistant materials, with no cracks, deformation, stains, or burrs on the surface. The surface coating should be uniform, without corrosion, rust, peeling, or wear. - The product assembly should be firm, with no loose parts, and components such as buttons, switches, and door locks should be flexible

Development Information

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