Submission from Germany, superseding document GRSG/2011/26 (distributed at the 101st session of the Working Party on General Safety Provisions) proposing amendments to provisions concerning hoses and couplings in UN R67.

Proposal from Germany to clarify the nature of approvals granted under UN R67 with respect to Class 1 and Class 2 hoses and their couplings (i.e., as hose assemblies or as hose and coupling pairs approved as separate components).

Correction of errors and oversights in Supplement 10 to the 01 series of amendments to Regulation No. 67 (document WP.29/2011/108) adopted at the November 2011 WP.29 session.

Text prepared by Germany clarifying the provisions of UN Regulation No. 67 with respect to hose assemblies.

Proposal to revise the AEGPL proposal concerning dual fuel systems (GRSG/2015/35). The proposal introduces ISO 26262:2011 (functional safety of electric/electronic systems) as the basis for assessing safety functions. Germany proposes to require resistance against diesel fuel in addition to petrol fuel (Annex 18). Furthermore, the proposal would require manufacturers to provide a full listing of the parts incorporated within the system to ensure that testing services and approval authorities have a clear understanding of any elements that may be safety-related.

Proposal to require that components connecting the pressure relief device with the gaseous phase be made of metal.

Proposal to establish a requirement for easy access to the LPG container installation in order to permit visual (periodical) inspection as a means to reduce the safety risks, such as refueling explosion, due to corrosion.

Proposal to improve the specifications for LPG multi-valves in response to an LPG vehicle fire that resulted in injuries to first responders. A German Type Approval Authority (KBA) analysis concluded that the hose connecting the PRV/PRD of the multi-valve to the gaseous phase was damaged and hose-fragments blocked both PRV and PRD such that pressure could not be adequately reduced. The PRV and PRD were activated, but the fragments considerably reduced the effective section of the relevant tubing and prevented the release of pressure. This proposal aims to prevent such occurrences.

The target of the meeting was to define essential periodic inspection requirements to be respected when installing gaseous fuel components into a vehicle, and to clarify the material requirements for components inside the LPG tank. The work addressed UN R67 and UN R110. No further meetings are planned at this time.

Proposal developed by the Gas-fueled Vehicle Regulations Task Force to facilitate periodic inspections of gas containers through better visibility. In addition, Germany suggests adding that paragraph to allow a Contracting Party or a regional organization of Contacting Parties like the EU to refuse national or regional type-approval and to refuse first registration of a vehicle type affected by the changes introduced by the 02 series of amendments but not meeting those stipulations. Paragraph 22.13 is an addition to paragraph 22.9. giving more stress to aspects of national and regional type-approval and of first registration of vehicles.

Proposal to improve the specifications for LPG multi-valves in response to an LPG vehicle fire that resulted in injuries to first responders. A German Type Approval Authority (KBA) analysis concluded that the hose connecting the PRV/PRD of the multi-valve to the gaseous phase was damaged and hose-fragments blocked both PRV and PRD such that pressure could not be adequately reduced. The PRV and PRD were activated, but the fragments considerably reduced the effective section of the relevant tubing and prevented the release of pressure. This proposal aims to prevent such occurrences.