Hot Water Storage Tanks
SGLS 058
Scope of certification
This standard covers hot water storage tanks including thermal solar systems, water heating installations and storage water heaters for drinking water.
Key requirements
- Environmental management system in place (ISO 14001 / ISO 45001 or equivalent)
- No carcinogens, mutagens or reproductive toxins; no heavy metals in water-contact materials
- Energy efficiency — standing heat loss within defined limits
- Safety devices required (temperature and pressure relief valve)
+ 1 additional requirement in the full criteria document
Find out if your product qualifies →
Ready to apply for the Green Label?
Most applications are completed within 3–4 weeks after all supporting documents are submitted. New certification is valid for 2 years.
3–4 weeks
Typical processing time
S$3,500
New certification fee
2 years
Certificate validity