这个是说天然气和液化气，本地是分别叫做PUB（town gas) 和 LPG中国和新加坡同称为（天然气？管道煤气？）（town gas）的的成分有不同，Uncle山西说了，中国天然气主要是甲烷，新加坡主要是氢气和甲烷（Typical Town Gas Composition：https://www.cityenergy.com.sg/wp-content/uploads/2021/11/City-Energy-Handbook-on-Gas-Supply-Dec-2021.pdf）
天然气和液化气炉具是有较大区别（成分，热值，压力），一般不能通用
中国/新加坡天然气成分差异是否不能通用灶具？
按这个pdf第17页的数据，应该主要成分是甲烷
APPENDIX A : SINGAPORE NATURAL GAS SPECIFICATIONS Natural Gas Specification Wobbe Index (WI) 45.2 – 52.0 MJ/m3 Gross heating value 35.3 – 50.3 MJ/m3 Hydrocarbon dew point 12.8 °C @ 50 bar Water dew point 9.4 °C @ 50 bar Free liquids zero (0) Methane (min) 80 % by volume of total reactants Oxygen (max) 0.1 % by volume Carbon dioxide (max) 5 % by volume Nitrogen (max) 5 % by volume Total inerts (max) 10 % by volume Hydrogen sulphide (max) 8 ppm by volume Total sulphur (max) 30 ppm by volume Particulate size (max) 10 micron Particulate quantity (max) 3 ppm by weight Potassium and Sodium (max) 0.5 ppm by weight Lead (max) 1 ppm by weight Magnesium (max) 2 ppm by weight
Huasing Association 1999 - 2013