BS ISO 32312-11:2024
Aircraft ground support equipment. Specific requirements - Container/Pallet dollies and loose load trailers

Standard No.

BS ISO 32312-11:2024

Release Date

2024

Published By

British Standards Institution (BSI)  GB  /  BSI

Latest

BS ISO 32312-11:2024

Introduction

Scope and Technical Characteristics of the Standard

This standard applies to container/pallet trailers and bulk cargo trailers used for transporting ULDs (unit load devices), bulk cargo, mail and baggage at airports, and explicitly excludes trailer types used for road use. Core specifications include:

Equipment type	Transportation method	Typical load	Applicable scenarios
Ball pad trailer	Omnidirectional transport	LD-3/LD-11 container	Narrow-body aircraft belly compartment
Inverted caster trailer	Multi-directional transport	AMA/AMP pallet	Wide-body aircraft main compartment
Roller platform trailer	Unidirectional transport	PGA oversized pallet	Cargo plane operation

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Key safety requirements

5.1 General specifications

• Must comply with EN 1915-1 basic safety requirements
• Train marshaling design must prevent collision between adjacent equipment (minimum turning radius ≤7.5m)
• Control devices must be compatible with protective gloves in an environment of -20℃~50℃

5.3 Platform design requirements

Case:Boeing 747 freighter ULD platform must meet the following requirements

• Roller diameter ≥50mm, spacing ≤254mm (10 inches)
• Adjacent roller height difference ≤3mm
• Guide device bevel angle ≥15°

5.8 Overload Braking System

When equipped, must meet the following requirements:

• Straight-line braking deceleration ≥ 0.25g
• Automatic release function (when reversing)
• Compatibility verification with tractor brakes

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Implementation recommendations

Operation specifications

1. Marshaling order: the heaviest trailer is close to the tractor
2. Mixed equipment with/without overload braking is prohibited
3. The maximum number of marshaling must take into account the power of the tractor

Maintenance points

Components	Inspection cycle	Key parameters
Steering mechanism	250 hours	Operation force ≤300N
Cargo locking device	Before each use	Locking height 50-100mm
Tyre assembly	500 hours	Tire pressure ±10% nominal value

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Technical evolution analysis

Compared with the 2005 version of EN 12312-11, the 2024 version has the following major changes:

• Added technical specifications for Ball transfer unit (Appendix C)
• Clarified the design requirements for 20-foot ULD dedicated trailers (Figure A.12)
• Strengthened cooperation with IATA AHM 909 Payload Data Interconnection (Appendix D)

BS ISO 32312-11:2024 Referenced Document

• EN 1050:1996 Safety of Machinery - Principles for Risk Assessment
• EN 1915-1:2001 Aircraft ground support equipment - General requirements - Part 1: Basic safety requirements Incorporates Amendment A1: 2009
• ISO 12100-1:2003 Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology
• ISO 12100-2:2003 Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles

BS ISO 32312-11:2024 history

• 2024 BS ISO 32312-11:2024 Aircraft ground support equipment. Specific requirements - Container/Pallet dollies and loose load trailers

Standard and Specification