scope:

This standard describes methods for the detection of ionizing radiation and for the direct and indirect measurement of field pattern and exposure rate of random incidental radiation emanating from high-voltage electronic tubes.

It does not include recommendations for safe levels of radiation*.

* For this aspect, see, for example, IEC Publication 65, Safety Requirements for Mains Operated Electronic and Related Apparatus for Household and Similar General Use (Clause 6), and IEC Publication 284, Rules of Behaviour with Respect to Possible Hazards when Dealing with Electronic Equipment and Equipment Employing Similar Techniques.