Non-destructive testing of steel forgings - Magnetic particle inspection Ingestion-build-64721 PD CEN/TR 16931-4 on e-invoicing

PD CEN/TR 16931-4  on e-invoicing interoperability is useful for:

The samples are terminated onto single-mode fibres as per IEC 60793-1-1 Type B1

Manufacturers of sleeving

Why should you use BS 4542 - Lynch Method for finding of loss tangent and permittivity

flue boxes or under associated independent canopies

Non-destructive testing of steel forgings - Magnetic particle inspection Ingestion-build-64721 PD CEN/TR 16931-4 on e-invoicing1 Scope This European Standard describes techniques and acceptance criteria to be used for the magnetic particle testing of forgings manufactured from ferromagnetic materials. The method described is used for the detection of surface discontinuities. It can also detect discontinuities just below the surface but the sensitivity to such discontinuities decreases rapidly with depth. NOTE A steel forging is considered to be ferromagnetic if the magnetic