Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 2: Introduction to the physics of low-noise design— 50 стр.
Agricultural tractors and machinery -- Power take-off drive shafts and power-input connection -- Part 2: Specification for use of PTO drive shafts, and position and clearance of PTO drive line and PIC for various attachments— 18 стр.
