prEN 12921

This document specifies safety requirements and recommendations for environmental aspects for cleaning and pretreatment machinery.
This document specifies requirements against all significant hazards, hazardous situations and hazardous events relevant to cleaning and pretreatment machinery, when they are used as intended, including reasonably foreseeable misuse.
See Annex A for significant hazards.
This document also specifies in Annex B recommendations for minimizing environmental impact of cleaning and pretreatment machinery.
Interfaces between cleaning and pretreatment machinery and potentially connected equipment not in scope are given in Figure 1.
Figure 1 - Interfaces between cleaning and pretreatment machinery and potentially connected equipment not in scope
The specific significant risks related to the use of this machinery with foodstuff and pharmaceutical products are not dealt with in this document.
This document does not apply to:
a)  high pressure water jet machinery according to EN 1829-1:2021;
b)  inerted cleaning and pretreatment machinery;
c)  surface-cleaning appliances for household use employing liquids or steam according to EN 60335-2-54:2008;
d)  high pressure cleaners and steam cleaners according to EN 60335 2 79:2012, modified;
e)  cleaning and pretreatment equipment installed in paint application booths;
f)  shot blasting machinery according to EN ISO 23779:2025;
g)  dry ice blasting machines;
h)  laser surface cleaning machinery;
i)  plasma surface cleaning machinery;
j)  electroplating machinery according to EN 17059:2018.
This document does not apply to cleaning and pretreatment machines manufactured before the date of its publication as an European standard.