Food Grade / Potable Certification
Certification that a lining material is safe for contact with drinking water, issued against a recognised standard and valid for a stated period.
On an actual building
For any tank storing drinking water this is a health requirement, not a specification preference. The certificate should be handed over with the project records.
What we most often have to correct
That technical performance is what matters. An uncertified coating may perform identically and still be unacceptable in a potable tank.
Terms that come up alongside this one
- Overhead Water Tank (OHWT)
An elevated storage tank, usually at terrace level, feeding the building by gravity..
- Underground Water Tank (UGT)
A below-ground storage tank, usually the building's primary water store, filled from the mains and pumped to the overhead tank..
- Curing
Keeping cementitious material adequately moist and at a suitable temperature while it hydrates and develops strength and impermeability..
Food Grade / Potable Certification — questions we get asked
What does food grade / potable certification mean in waterproofing?
Certification that a lining material is safe for contact with drinking water, issued against a recognised standard and valid for a stated period.
Why does food grade / potable certification matter on a real project?
For any tank storing drinking water this is a health requirement, not a specification preference. The certificate should be handed over with the project records.
What do people commonly get wrong about food grade / potable certification?
That technical performance is what matters. An uncertified coating may perform identically and still be unacceptable in a potable tank.
Have a building showing this?
If a term on this page describes something you are looking at, a site inspection will tell you how far it has gone and what it needs. It costs nothing.
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