BS EN ISO 1119:2011

This standard BS EN ISO 1119:2011 Geometrical product specifications (GPS). Series of conical tapers and taper angles is classified in these ICS categories:

• 17.040.40 Geometrical Product Specification (GPS)
• 17.040.01 Linear and angular measurements in general

This International Standard provides calculated values for a series of cones or conical tapers, ranging from 120° to less than 1°, or ratios from 1:0,289 to 1:500, intended for general use in technical engineering.

It applies only to plain conical surfaces, and excludes prismatic pieces, taper threads, bevel gears, etc.