Cheap Biochemical Oxygen Demand ( BOD ) with Bottle High Accuracy

Cheap Biochemical Oxygen Demand (BOD) with Bottle High Accuracy 

Features:
-> Simple operation, can provide accurate measurement with the chemical dilution method
-> intuitive reading; easy to use and maintain; wide range of applications
-> Industry laboratory testing, sewage treatment, tertiary institutions, scientific research units

Work principle
The first step: the water sample or through the pretreatment of water samples into the culture bottle, while in the mouth of the absorption cup into the carbon dioxide absorbent (NaOH)
The second step: the culture bottle sealed, placed in a dedicated biochemical incubator
The third step: W hen the measured sample at 20 ± 1 ºC under constant temperature for five days after the incubation at a certain rate of stirring, the bottle of water samples for biological oxidation
 
At this point, the organic matter into nitrogen, carbon and sulfur oxides, and produce carbon dioxide gas is absorbed by sodium hydroxide, and the upper space of the culture bottle of oxygen continue to supply water samples in the microbial oxygen demand, the culture bottle produced Pressure difference, by detecting the height of mercury in the glass tube, you can calculate the water sample in the specified period of BOD value.
 

Q1: Why Choose NANBEI ?
(1).Professional manufacturer with more than 13 years experience
(2).Exported to more than 97% Countries
(3).Turnkey Solution is no problem

Q2:OEM,ODM acceptable or not?
Absolutely Yes

Q3:What's kind of Payment terms for customer choosing?
T/T ,Western Union, Money Gram , Credit Card, Paypal , L/C ...

Q4:Can we visit your factory online?
Absolutely no problem

Q5:Can online video inspection before shipment?
Absolutely no problem

Q6: what's the MOQ ? Sample order is OK?
MOQ:1 set, sample order is no problem

Q7:What's kind of shipment for customer choosing?
Usually ship by sea, by air, by international express .
We can also provide reasonable solutions according to your transportation requirements

Q8:How to ensure product quality and after-sales service?
We have CE, ISO quality certificate, and SGS authentication.

After-sale service:

1. Warranty : 1 year
2. We supply free part for quality problem in warranty
3. Long life technical support and service