Identical with IP 143/90.

BS 2000-143:1993
Original price was: $160.02.$80.00Current price is: $80.00.
Methods of test for petroleum and its products-Determination of asphaltenes (heptane insolubles)
BSI Group , 02/28/1993
Pages: 6

Original price was: $160.02.$80.00Current price is: $80.00.
Methods of test for petroleum and its products-Determination of asphaltenes (heptane insolubles)
BSI Group , 02/28/1993
Pages: 6