This standard specifies a pipe outer diameter of 4 mm, selected from ISO 2964, with or without grounding.
KS W ISO 7661:2009 history
2016KS W ISO 7661:2016 Aerospace-Fluid systems-Clamp blocks for tube lines having axial alignment-Design standard and qualification testing-Metric series
0000 KS W ISO 7661-2009(2014)
2009KS W ISO 7661:2009 Aerospace-Fluid systems-Clamp blocks for tube lines having axial alignment-Design standard and qualification testing-Metric series