... ingredients, do not damage the ozone layer, greenhouse effect R-600a is an excellent new hydrocarbon refrigerants, from natural ingredients, do ... , olefin content of less than 0.01%. Product Name: R-600a (high-purity isobutane) Executive Standard: Q/SH1025 0078 - 2003 Project ... No no residue ml/100ml Same gas Mei Mei R-600a (high-purity isobutane)