Code for controlled non-tightness of walls, and protection against excessive pressure differences in cold stores. Richtlijnen met betrekking tot de gecontroleerde ondichtheid van en debeveiliging tegen te grote drukverschillen in koude ruimten.

Deals with a code providing directives for design and construction of cold stores, drafted by the Foundation for Development of Refrigeration Technique (Stiftung Ontwikkeling Koeltechniek). Gives threshold values for admissible pressure difference and admissible measure of non-tightness, and values forthe required pressure equalizing opening, depending on nature and size of the cold room.