Vent stack

[angus65]

Good afternoon

Apologies if this has been covered elsewhere.I have a vent stack that I am about to take down and just would like some advice on whether it is made of cement pitch fibre or asbestos cement .I need to know this so that I can best dispose of it in a responsible way.I enclose a photo .Can the two types be identified by colour ?Unfortunately the pipe was overpainted and I can only identify the pipe where the paint has flaked off .

Thank you in advance

 

[Nige F]

Asbestos cement . as it happens I've just taken a pitch fibre one down - very unusual to find as a soil pipe. It was indoors and boxed in .

 

[angus65]

Thank you for your reply