This is the webpage http://www.tc123-sc4/resolver/urn:iso:std:iso:12345:-6:tech:LowPressureWidget for LowPressureWidget (with URN urn:iso:std:iso:12345:-6:tech:LowPressureWidget), which is generated by the resolver http://www.tc123-sc4/resolver/ maintained by ISO TC123/SC4.

The webpage says:

LowPressureWidget low pressure widget A widget that has a design operating pressure range entirely below 20 MPa.