BS 7171:1989

Foreword
Committees responsible
Specification
0. Introduction
1. Scope
2. Classification of MEWPs
3. Definitions
4. Maximum operating speeds
5. Load and force factors, and design and stability
    calculations
6. Design
7. Marking and technical information
8. Testing
Appendices
A. Recommendations for approval procedures for a new
    design of MEWP
B. Recommendations for examinations and tests after
    major alterations to a MEWP already in use
C. Recommendations for periodical examination and
    tests on MEWPs
D. Guidelines for the design and test of load-supporting
    hydraulic and pneumatic cylinders
E. Examples of a safe and an unsafe hydraulic control
    circuit
Tables
1. Examples of maximum overturning load and force
    moment combinations for stability calculations
Figures
1. Typical group A machines with no limitations on
    their range of movements
2. Typical group B machines with limitations on their
    range of movements
3. Components of the safe working load
4. Examples of maximum overturning load and force
    moment combinations
5. Load spectrum factor
6. Examples of a safe and an unsafe hydraulic circuit

Classification, design calculations and stability criteria, construction, safety, examinations and tests of platforms with power operated extending structures and/or work platforms.