Seamless and welded steel tubes. Dimensions and masses per unit length Ingestion-build-190310 The intent of this standard

The intent of this standard is to adequately specify the physical requirements of an optical transceiver that will enable mechanical interchangeability of transceivers complying with this standard both at the printed circuit wiring board and for any panel-mounting requirement

so users will gain a better understanding of the quality of tubing and will increase the safety of engines and can protect from the effects of fuel leaks

Although age grading has safety implications

This technical specification is generally applicable to all types of external insulation

Update of Normative references

Seamless and welded steel tubes. Dimensions and masses per unit length Ingestion-build-190310 The intent of this standard