Bharat Petroleum Corporation Limited (BPCL) is an Indian state-controlled oil and gas company headquartered in Mumbai, Maharashtra. The Corporation operates two large refineries of the country located at Mumbai and Kochi.

the Toluene Method of the Specification of the Bharat petroleum Corporation is given below

TEST METHOD
Colour 5 of IS : 82 -1973

SPECIFICATION
Not darker than freshly prepared solution of 0.8 ml. 0.1N Potassium Dichromate and 12 ml. of 0.1N of Cobalt Sulphate made up to 1000 ml with water.

Sp. Gravity : 6.3.3 of IS : 82 -1973

At 15/15°C 0.8700 to 0.8740
At 27/27°C 0.8590 to 0.8630

Distillation range IS : 5298(1969)

Specification :

The difference between temperature (running pts) at which 1 & 96% of the volume taken have been collected shall not exceed 0.6°C when a treated sample
is tested by standard method. This range shall include the temperature of 110.6°C.

Residue on evaporation,
mg/100 ml. 9 of IS:82-1973

Specification :
Max. 5

Total Sulphur %wt.
Appendix C of IS:537-1967

Specification :
Max.0.1

Hydrogen Sulphide
Appendix D of IS:537-1967
To pass test

Mercaptan P:19 of IS:1448