15% - 50% generally referred to as "Transite" a popular brand of cementitious pipe and tile materials manufactured by Johns-Manville Corp
You would have to take a sample and send it to a lab for analysis. They will send you the percent and type.
Asbestos pipe is made of cement that contains asbestos fibers. Iron pipe is made from cast iron.
There is no easy way to repair asbestos-cement pipe. If damaged, it should be removed and replaced.
Remove and replace it.
Asbestos cement pipe was made in many different sizes. The two types of Asbestos cement pipe are rough and machined. Currently the sizing of AC (Asbestos Cement Pipe) is divided into three classifications. The three classes are Class 100, Class 150, and Class 200. Standard AC sizes are 3", 4", 6", 8", 10", 12", 14", 16", 18", 20", 24". A decent reference page for the OD sizing of machined and rough barrel pipe is available at the related link, below, giving a pipe outer diameter chart.
With a sleeve coupling made of same material as pipe and sealed with an elastomeric ring.
It is probably not a good idea to install new asbestos pipe. Asbestos pipe requires remediation if and when it deteriorates to that it may be releasing asbestos fibers. Whether it is legal to install asbestos pipe depends one what legal jurisdiction you are in. Some countries have forbidden all use of asbestos containing products and some permit some uses to continue.
You can machine asbestos pipe but doing so requires the use of very specialzed equipment andis not usually a good idea. Look for an alternative material.
Clay pipe, Bricks, Asbestos cement, Cast Iron various schedules , preformed pipe and concrete forms (ducts)
Asbestos cement
The difference between corrugated asbestos roofing and flat asbestos cement sheet is the form in which it was cast and, perhaps, the thickness of the finished product. Asbestos was merely an additive to cement. Both products are basically cement with a fiber strengthener that happens to be asbestos.
was asbestos used in production of cast iron pipe