TS 12664-1

TS 12664-1 is a service standard that sets out general rules for workplaces converting road vehicle fuel systems to use liquefied petroleum gas (LPG). Its focus is the overall organisation of the workshop environment: not only the conversion task itself, but also the management, physical characteristics, technical equipment, and staff qualities needed to carry it out in a controlled way.

In general technical terms, an LPG conversion adapts a vehicle’s fuel system to a fuel with different pressure, storage, and supply characteristics than petrol. That makes workshop layout, suitable equipment, orderly work practices, and trained personnel especially important. The standard addresses this broader workplace framework rather than a single vehicle type or one specific conversion method.

Workplace structure and technical readiness

The general rules covered by this standard bring together the physical conditions of the workplace and the technical equipment used there. In the context of LPG work, key ideas include a suitable working area, appropriate electrical installation, an arrangement that supports work on vehicles, and correct use of equipment. The referenced standards point to the multi-disciplinary nature of the subject, linking electrical safety, personal protective equipment, gas-related equipment, and vehicle fuel system components.

What the standard means in practice

• It covers management and operating arrangements for the workplace.
• It addresses the physical characteristics of the conversion premises.
• It includes the technical equipment needed for LPG conversion work.
• It refers to the qualities expected of personnel carrying out the work.
• It applies to workplaces converting road vehicle fuel systems to LPG, not to other service activities.