India BS-VI standards

[KKSBiotech]

What is upgrade in new emission norms of BS-VI?

[src4592]

The BS6 norms vehicles required to emit nearly 60mg/km of NOx emission, Whereas, it was 80mg/km in the case of BS4 norms.BS6 fuel has lower sulphur content than BS4 fuel. These fuel will play a significant role as in level of it's sulphur and nitrogen oxide content!

[GSC EnvSci]

The Central Pollution Control Board (CPCB in Ministry of Environment, Forest and Climate Change) prescribe standards to control auto-exhaust in India. Started 2000 as ‘India 2000’ and subsequently updated to BS2 (2005), BS3 (2010), BS4 (2017) and finally bypassing BS5, BS6 (01-04-2020). The Indian BSVI is at par with EURO6 standards of 2020.

Improvements in emission with BSVI are

  

Pollutant limit BS4 to BS6
Petrol 

Nitrogen Oxide NOx 80 to 60 mg
Particulate Matter 4.5 mg/km to Nil

Diesel 

Nitrogen Oxide NOx  250 to 80 mg
Particulate Matter 25 to 4.5 mg/km
Hydrocarbon + NOx 300to 170 mg/km

The sulphur content of BS-VI fuel, which is five times lower than that in BS-IV fuel. Using BS6 diesel in BS4 vehicle might wear engine for low sulfur content needed as lubricant. The BSVI engine may have one or more of the following featurtes to meet emission norms:

Diesel particulate filters (reduce PM)
Selective Catalytic Reduction (reduce NOx)
Microprocessor (Precise reaction timing)
Hybrid engine (fuel efficiency)
Direct injection (Low CO)

[chilenilam]

Bharat stage emission standards are instituted by government of india to regulate the output of air pollutants from compression ignition engines and spark ignition engines equipments.
The standards based on European regulations were first introduced in 2000. The new vehicle manufactured after the implementation of the norms have to be compliant with the regulations.