BS 2000-143:2005 Methods of test for petroleum and its products. Determination of asphaltenes (heptane insolubles) in crude petroleum and petroleum products
2005BS 2000-143:2005 Methods of test for petroleum and its products. Determination of asphaltenes (heptane insolubles) in crude petroleum and petroleum products
2005BS 2000-143:2004 Methods of test for petroleum and its products. Determination of asphaltenes (heptane insolubles) in crude petroleum and petroleum products
2003BS 2000-143:2001 Methods of test for petroleum and its products-Determination of asphaltenes (heptane insolubles) in crude petroleum and petroleum products
1996BS 2000-143:1996 Methods of test for petroleum and its products-Determination of asphaltenes (heptane insolubles) in crude petroleum and petroleum products
1993BS 2000-143:1993 Methods of test for petroleum and its products-Determination of asphaltenes (heptane insolubles)
1985BS 2000-143:1985 Methods of test for petroleum and its products-Asphaltenes in petroleum products (precipitation with normal heptane)
1983BS 2000-143:1983 Methods of test for petroleum and its products. Asphaltenes in petroleum products (precipitation with normal heptane)