The depth of six v-shaped grooves with nominal values 5/20/50/200/600 and 900 µm have to be measured. The depth has to be measured according to ISO 5436-1. The PTB nickel depth setting standard is used as reference standard. PTB measures all depths, MIKES 3 smaller depths and UME 3 larger depths.
This Supplementary Comparison is a follow-up of the EURAMET project 1407: Measurement of groove depth standards in the range 1 µm up to 1 mm.