ISO 3857-3:1989

Overview

ISO 3857-3:1989 is the International Standard vocabulary for pneumatic tools and machines. As Part 3 of the ISO 3857 series, it provides bilingual (English/French) terms and definitions specifically for pneumatic motors and pneumatic tools - including rotary and percussive tools. Published as the second edition in 1989 by ISO/TC 118, this standard harmonizes technical language used in design, testing, documentation and trade.

Key Topics

The standard defines key technical concepts and nomenclature used across pneumatic equipment, including:

• Pneumatic motors

  • swept volume, displacement, clearance volume
  • supply and discharge pressures (mean total absolute pressure)
  • overall and internal expansion ratios
  • torques: static starting, dynamic starting, loaded torque, maximum brake loaded torque, static/dynamic stall torque
  • rotational frequencies: no-load and under-load
  • power output and power-to-mass ratio

• Pneumatic tools (rotary and percussive)

  • swept volume and displacement (per revolution or stroke)
  • supply and discharge pressures and expansion ratio
  • air consumption and specific air consumption
  • direction of rotation definitions (right-hand/left-hand; forward/reverse)

• Measurement reference conditions noted (e.g., air consumption referred to an absolute pressure of 105 Pa and a temperature of 20 °C).

• Definitions are aligned with orientation and rotation systems referenced in ISO 1503.

Applications

ISO 3857-3 is practical for:

• Creating consistent technical documentation, datasheets and manuals for pneumatic motors and tools
• Specifying terminology in procurement contracts and product standards
• Supporting test laboratories and quality assurance in reporting performance (torque, speed, power, consumption)
• Training maintenance and service personnel on standardized definitions
• Facilitating international trade and regulatory compliance by harmonizing vocabulary across English and French markets

Who Uses It

• Mechanical and pneumatic engineers
• Manufacturers and product designers of air-powered tools and motors
• Technical writers and documentation teams
• Test labs, certification bodies and QA teams
• Procurement specialists and standards committees

Related Standards

• ISO 3857-1 - General (concepts, symbols, units)
• ISO 3857-2 - Compressors
• ISO 1503:1977 - Geometrical orientation and directions of movements (referenced for rotation definitions)

By standardizing core vocabulary for pneumatic tools and machines, ISO 3857-3:1989 improves clarity in specifications, testing, documentation and cross-border communication for the pneumatic equipment industry.