I read the document, finally. Favorite part? Four pages in;

First of all, it is necessary to define what we mean by a caliper. This is because the writer has come across a specification draft of ISO/DIS (International Organisation for Standardisation / Draft of International Standard) 13385-2.2. The title of this draft is Geometric Product Specification (GPS) - Dimensional Measuring Equipment-Part 2: calliper depth gage - Design and metrological requirements.This draft was embarrassingly approved in 2011. The problem is that it uses the term caliper depth gage. However, this specification clearly concerns depth gages alone and so the word caliper is erroneous in this context. It is believed that the specialists who were in charge of compiling ISO/TC213 did not realize the significance of the term caliper so it was decided to address this point in this document.

Glaring example.

Many governing bodies are composed of inadequate resources, not personnel, but qualified personnel. That falls on leadership, rarely shortage of middle management!
Yes, that sums up my observation of ISO. Note generous labeling of 'specialists' interspersed with 'in charge of compiling ISO/TC213 did not realize the significance'...

Ask just about anyone, calliper/ caliper means instrument with measuring faces equally opposed to, or facing each other.