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ET2420804 customized COD standard value: 500mg/L standard solution
ET2420804 customized special COD standard value: 500mg/L standard solution standard value: 500mg/L, specification: 30mL. Suitable for regular inspecti
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standard value：500mg/L，Specifications：30mL
Applicable toCODThe measuring instrument should be regularly checked and calibrated, and it is recommended to use it regularly. Before each use, or15Calibration once a day, infrequently used, calibrated before use, standardized operation and calibration are the basic requirements to ensure the accuracy and precision of measurement results.
standard value：500mg/L，Specifications：30mL
Applicable toCODThe measuring instrument should be regularly checked and calibrated, and it is recommended to use it regularly. Before each use, or15Calibration once a day, infrequently used, calibrated before use, standardized operation and calibration are the basic requirements to ensure the accuracy and precision of measurement results.
standard value：500mg/L，Specifications：30mL
Applicable toCODThe measuring instrument should be regularly checked and calibrated, and it is recommended to use it regularly. Before each use, or15Calibration once a day, infrequently used, calibrated before use, standardized operation and calibration are the basic requirements to ensure the accuracy and precision of measurement results.
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