If you only need to understand the methodology rather than the full legal text, you can often find:

The DIN EN ISO 6270-2 standard is a part of the ISO 6270 series, which focuses on the calibration and verification of thermometers. Specifically, this standard provides guidelines for the calibration of thermometers using comparison methods. It outlines the requirements for the calibration of thermometers, including the equipment, procedures, and uncertainty considerations.

A continuous condensation atmosphere where temperature is held at with approximately 100% relative humidity.

The standard defines several climate variants to simulate different environmental stresses:

DIN EN ISO 6270-2:2017 - Paints and varnishes - Determination of resistance to humidity - Part 2: Procedure for testing in a condensing-water apparatus