Standard of Execution:
Meets the "GB 3838-2002 Surface Water Environmental Quality Standard"
Meets the "CJ/T 206-2005 Urban Water Supply Quality Standard"
Meets the "GB/T 5750.12-2006 Methods for Examination of Drinking Water Quality" standard
Meets the requirements of "DB21/T 2368-2014 Rapid Determination of Total Coliforms and Faecal Coliforms in Seawater by Enzymatic Substrate Method"
Compliant with the "CJ/T51-2018 Test Methods for Water Quality of Urban Sewage - Determination of Thermotolerant Coliforms by Enzymatic Substrate Method" standard.
Meets the "HJ 1001-2018 National Environmental Protection Standard for the Determination of Total Coliforms, Fecal Coliforms, and Escherichia coli in Water Quality"
Enzyme Substrate Method vs. Traditional Method Data Comparison
Project | Multi-tube fermentation method | Membrane filtration method | Enzyme Substrate Method |
Inspection Time | 3-5 days | 2-3 days | 1 day |
False Positive | — | 23-26% | 1% |
Scope of Inspection | 2-1600MPN/100mL | — | 0-2419.6MPN/100mL |
Environmental Requirements | Sterile Laboratory | Sterile Laboratory | No special requirements |
Laboratory personnel requirements | Has relevant professional background | Has relevant professional foundation | Basic training required |
Quantitative Standard | MPN Listing | Direct Count | MPN listing |
Quantitative Method | 15 tubes | Colony Count | 51 or 97 orifices plate |
By data comparison: it can be observed that the enzymatic substrate method has a short detection time, does not require an aseptic laboratory, and has no specific professional requirements for the operator.
Technical Specifications:
1Applicable Objects: Detection of total coliforms, Escherichia coli, and thermotolerant coliforms.
2Intelligent: Equipped with a liquid crystal display and built-in intelligent modules. Features automatic counting function, capable of recording the experimental process and usage frequency. Also available forMPNCounting software generates values to avoid errors from manual comparison.
3Preheat time:2-3Minutes.
4Sealing Speed:8-10Second.
5Noise: ≤48dba
6One-touch drainage function, rear drainage hole for easy cleaning of any leaks caused during the sealing process.
7Clean window and service door for easy cleaning of the roller.
8Features sleep mode: The device remains powered on for extended periods without use.2Automatically enters sleep mode after an hour, reducing power consumption (recommended to turn off the power when not in use for a long time or unattended).
9The machine automatically shuts off after the sealing is complete.
10Ambient Temperature:-10-50℃
11Power supply:AC220V 50Hz
