2803 Carbon `carbon blacks and other forms of carbon`, n.e.s.

2803 (01/1988-..) Carbon `carbon blacks and other forms of carbon`, n.e.s. 28030000 (01/2009-..) Carbon `carbon blacks and other forms of carbon`, n.e.s. 28030010 (01/1988-12/2008) Methane black 28030030 (01/1988-12/1997) Acetylene black 28030080 (01/1998-12/2008) Carbon `carbon blacks and other forms of carbon`, n.e.s. (excl. methane black) 28030090 (01/1988-12/1997) Carbon `carbon blacks and other forms of carbon` n.e.s. (excl. methane black and acetylene black)