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Why School Basketball Courts Need GB 36246-2018
GB 36246-2018 is China's mandatory standard for school synthetic surfaces since 2019: 18 hazardous-substance limits that flooring must pass to enter school procurement.

Xinglong Middle School, Ningxia 5,500㎡ (2018) — ANK2F / GB 36246 passed
Standard Core Content
- 18 hazardous substances: formaldehyde, benzene, toluene+xylene, TVOC, PAHs, phthalates, soluble lead/cadmium/chromium/mercury, etc.
- Physical performance: shock absorption ≥35%, vertical deformation 0.6-3.0mm, slip BPN ≥47, fire class B+
- Odor grade: ≤3 (on a 5-grade scale)
Buyer Verification Checklist
| Item | Check | Risk if missed |
|---|---|---|
| Report model | Exact match to purchased model | Flagship cert misused for standard model |
| Lab | CNAS + CMA marks | Unaccredited report has no legal force |
| Date | Within 2 years | Older reports may be invalid |
| 18 substances | Each ≤ limit | Any exceedance = overall fail |
Real Case: Xinglong Middle School 5,500㎡
- Model: ANK2F four-grid (4 expansion gaps per tile)
- Challenge: Ningxia 60°C+ annual temp swing
- Result: 8 years, no major buckling, no lock failure
Order: confirm physical performance → verify GB 36246 report → check installation. See PP spec reading.
FAQ
Is GB 36246-2018 mandatory?
Yes — mandatory national standard (GB without /T), effective Nov 1, 2019, for school synthetic surfaces.
How long is a report valid?
No legal limit, but 2 years is the industry norm; older reports may be invalid due to formula/process changes.
CNAS vs CMA?
CMA is China's legal lab accreditation; CNAS adds international recognition. Compliant reports carry both.
We're a community court, do we need it?
Mandatory only for schools/kindergartens, but GB 36246-passed products are more eco-safe — a good plus for community buyers.
What are the 18 substances?
Formaldehyde, benzene, toluene+xylene, TVOC, phenol, PAHs, 6 phthalates, soluble lead/cadmium/chromium/mercury, 3-MCPD, etc.
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