What is BS EN 12312-12 - Potable water service equipment about ?  
BS EN 12312-12 is a European Standard that specifies the technical requirements to minimize the hazards listed in Clause 4 which can arise during the commissioning, operation, and maintenance of potable water service equipment when used as intended, including misuse reasonably foreseeable by the manufacturer, when carried out in accordance with the specifications given by the manufacturer or his authorized representative. It also considers some requirements recognized as essential by authorities, aircraft, and ground support equipment (GSE) manufacturers as well as airlines and handling agencies.
BS EN 12312-12 applies to:
- Self-propelled potable water vehicles
- Towable potable water vehicles
- Moveable parts of ramp integrated systems
designed for servicing aircraft and intended to be used under the conditions given in EN 19151:2013, Clause 1.
Note: BS EN 12312-12 is not applicable to potable water service equipment which is manufactured before the date of publication of BS EN 12312-12 by CEN.
Who is BS EN 12312-12 - Potable water service equipment for ? 
BS EN 12312-12 on potable water service equipment is useful for:
- Ground support equipment (GSE) manufacturers  
- Airlines industry
- Potable water service equipment manufacturers 
- Regulatory bodies/compliance authorities
- Maintenance crew for aircraft potable water service equipment vehicles 
- Design engineers 
- Quality control professionals 
Why should you use BS EN 12312-12 - Potable water service equipment ?  
BS EN 12312-12 provides you with health and safety requirements as well as some functional and performance requirements for potable water service equipment intended for servicing all aircraft types commonly in service in civil air transport. When used at the design stage, BS EN 12312-12 lets you mitigate potential risks at the beginning of the process. As a manufacturer of potable water service equipment, you can refer to the guidelines in BS EN 12312-12 to comply with safety regulations. 
By adopting BS EN 12312-12, you can demonstrate the reliability of your potable water service equipment and build trust in their use throughout the aircraft supply chain. Design engineers and quality control specialists will be able to improve the quality of products, too.
What’s changed since the last update ?  
BS EN 12312-12:2017 supersedes BS EN 12312-12:2002+A1:2009.
BS EN 12312-12:2017 includes some technical changes with respect to BS EN 12312-12:2002+A1:2009 These include: 
- Amendment A1:2009 was incorporated
- The Introduction was updated in relation to the deviation from recommended criteria
- The Scope was updated to cover reasonably foreseeable misuse
- Clause 2, Normative references, was updated
- The list of hazards was updated to exclude hazards due to traffic and repair and was moved to Annex A
- Clause 5, Safety requirements and/or measures, was completely revised and changed
- Subclause 6.1, Marking, and Subclause 6.2 Additional marking were changed
- Clause 7, Verification of requirements, was updated
- Annex A, Examples of potable water service equipment, was deleted and replaced by a completely revised Annex A, List of Hazards
- Annex ZA referring to the Machinery Directive 98/37/EC was replaced by Annex ZA referring to the new Machinery Directive 2006/42/EC
