Here’s an enhanced “About CBG” paragraph with technical specifications, written in a professional and industry-appropriate tone
for APTL Biofuels:

Compressed Bio Gas (CBG) is a certified, renewable, and eco-friendly fuel produced from organic waste streams such as agricultural residues, animal waste, food waste, and municipal solid waste through anaerobic digestion, purification, and compression. Under India’s SATAT (Sustainable Alternative Towards Affordable Transportation) initiative, CBG must comply with Bureau of Indian Standards (BIS) IS 16087:2016 quality specifications to ensure safety, performance, and interchangeability with conventional fuels like CNG. As per this standard, CBG supplied for automotive and industrial use contains a minimum of 90 % methane (CH4) by volume, with strict limits on impurities: maximum 4 % carbon dioxide (CO2), maximum 10 % combined CO2 + N2 + O2, oxygen (O2) ≤0.5 %, total sulphur (including H2S) ≤20 mg/m³ and moisture ≤5 mg/m³. CBG is also free from liquids and particulate matter over the full range of storage and dispensing conditions and is compressed to around 250 bar, delivering a calorific value comparable to CNG and making it suitable for use in vehicles, industrial engines, and gas networks under the SATAT framework.