The products that may be added for thermal insulation of the containers during the water piping connection procedure must be chemically neutral in relation to the materials and coatings to which they are applied.
Proizvodi, ki se lahko dodajo kot toplotna izolacija rezervoarjev med postopkom priključitve na cevovode z vodo, morajo biti kemično nevtralni glede na materiale in prevleke, na katere jih nanašate.