heptane insolubles meaning in English

庚烷不溶物

Standard test method for n - heptane insolubles
N -庚烷非溶物质的标准试验方法
Test method for determination of asphaltenes heptane insolubles , in crude petroleum and petroleum products
原油和原油产品沥青物质测定方法
Methods of test for petroleum and its products - determination of asphaltenes heptane insolubles in crude petroleum and petroleum products
石油及其产品的试验方法.原油和石油产品中沥青烯