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Chemical oxygen demand (COD) is a chemical method to measure the amount of reducing substances that need to be oxidized in a water sample. Under certain conditions, the amount of oxidant consumed by oxidizing reducing substances in 1 liter of water sample is used as an index, and converted into the milligrams of oxygen required per liter of water sample,
WXZJ-CODcr series COD on-line water quality analyzer The liquid is heated to 175 ° C, and the dichromate ion oxidizes the solution.
Performance characteristics: 1. ● Precisely prepared reagents: Dispensed into one experiment. 2. ● Minimal processing volume and shortest preparation time. 3. ● Reduce errors in manual reagent preparation to provide high accuracy and reproducible results. 4. ● Reduce and avoid the use of hazardous chemicals, such as
1. Technical parameters of HACH DRB200 COD digester: Heating speed: Heating from 20 ℃ to 150 ℃ in 10 minutes Temperature stability: ± 2 ℃ Stored program: COD program (150 ℃, 120 minutes) 100 ℃ process
Performance characteristics: 1. ● Precisely prepared reagents: Dispensed into one experiment. 2. ● Minimal processing volume and shortest preparation time. 3. ● Reduce errors in manual reagent preparation to provide high accuracy and reproducible results. 4. ● Reduce and avoid the use of hazardous chemicals, such as
First, the main technical indicators of the first line 101B COD fast digestion instrument: 1. Temperature range: room temperature -190 ° C 2. Constant temperature accuracy: ± 0.5 ° C 3. Heating time: (170 ° C) ≤ 10min 4. Measurement range: 5-100mg / L Surface water direct measurement
Performance characteristics: 1. ● Precisely prepared reagents: Dispensed into one experiment. 2. ● Minimal processing volume and shortest preparation time. 3. ● Reduce errors in manual reagent preparation to provide high accuracy and reproducible results. 4. ● Reduce and avoid the use of hazardous chemicals, such as
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