Electronic invoicing - Guidelines on interoperability of electronic invoices at the transmission levelWhat is PD CEN TR 16931 4 E invoicing interoperability bout? The mass adoption of e invoicing within the EU would lead to significant economic benefits. PD CEN TS 16931 is a series that discusses standards for electronic invoicing (e invoicing). PD CEN TS 169312 is a part of multi series electronic invoicing that recommends a set of guidelines to ensure interoperability at the transmission level to be used in conjunction with the European Norm (EN)

1 which makes changes to Clauses 6

PD 7974-2: Spread of smoke and toxic gases within and beyond the enclosure of origin

How does the standard work

- an integrating-averaging sound level meter that measures time-average sound level

Britannia Rescue

Figure 17 – Join in a plastered internal block wall using plasterboard jointing tape

This is achieved by referencing formal published conformance tests or profiles of standards

By demonstrating compliance with this standard

PD CEN/TR 16999 provides the detailed requirements for the structural design of the structural connection between solar energy panels and the roof structure

Contents of BS EN 12668-2:

Designed concrete

ISO 11298-3 on close-fit lining systems is relevant to: