project

TECHNICAL INDEX

Measurement parameters

Ammonia nitrogen

COD

total phosphorus

measuring principle

Salicylic acid spectrophotometric method

Potassium dichromate colorimetric method

Ammonium molybdate spectrophotometric method

measuring range

0～10mg/L

(Can be adjusted as needed)

0～800mg/L

(Can be adjusted as needed)

0～10mg/L

(Can be adjusted as needed)

accuracy

±5%

±8%

±5%

Repeatability error

±5%

±8%

±5%

zero drift

±5%FS

±5%FS

±5%FS

Span Drift

±5%FS

±5%FS

±5%FS

LoD

0.003mg/L

4mg/L

0.01mg/L

Measurement period

25min

37min

40min