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How to read the technical tender parameters for suspended interlocking sports flooring? An interpretation of the 12 testing requirements
A detailed explanation of the 12 common third-party testing requirements in government/school bids for suspended flooring: PAHs, formaldehyde, Shore hardness, impact, SVHC, PP, environmental stress resistance, calcite-free, antibacterial, xenon-lamp aging, hazardous substances, and sports performance—including the corresponding national standards and verification methods.
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Campus sports venue tendering and procurement scenario — Xinglong Middle School, Ningxia, 5500㎡ (ANK2F four-grid)
So which material should I actually choose?→ Material comparison · Selection (suspended vs. acrylic/silicon PU/PVC…)
12 common testing requirements in bids
| Terms | Technical requirements | Corresponding standard |
|---|---|---|
| 4 | No PAHs (18 items) + benzene/toluene/xylene/benzo[a]pyrene detected in the material; TVOC complies with GB50325-2010 | GB 36246-2018 New National Standard Chemical Testing (SGS) |
| 5 | Formaldehyde emissions comply with GB/T 18883-2002 | GB/T 18883-2002 Indoor Air Quality (National Environmental Protection Product Quality Inspection Center) |
| 6 | Surface layer Shore hardness D≤55 | SGS soft material performance (ISO 868) |
| 7 | The cantilever beam unnotched impact test does not break it | SGS soft material performance (ISO 180) |
| 8 | Raw materials comply with the SVHC standard | SGS SVHC (bilingual CN/EN) |
| 9 | The flooring's main component is PP material | SGS PP material identification |
| 10 | Environmental Stress Cracking Resistance Percentage ≤0.01% | SGS environmental stress resistance (GB/T 1842) |
| 11 | The flooring contains no calcite | SGS calcium carbonate content |
| 12 | Antibacterial rate against Klebsiella pneumoniae / E. coli / Staphylococcus aureus ≥99.9% | SGS antibacterial (GB/T 31402 / ISO 22196) |
| ★ 13 | Xenon lamp aging ≥7000 hours, gray scale rating ≥ Level 3 | SGS xenon lamp aging (GB/T 16422.2) |
| ★ 14 | SCCP(C10-C13)/MOCA/TDI+HDI/MDI compliant with GB 36246-2018 or GB/T 14833-2020 | GB 36246-2018 New National Standard Chemical Testing (SGS) |
| ★ 15 | Ball rebound rate ≥95%, impact absorption ≥20%, odor rating ≤ level 3 | National Sports Performance + GB 36246 Physical Items |
★ Marked as a substantive clause (deal-breaker); failing to meet it directly disqualifies the bid.
3-step verification for buyers / bidders
- Qualifications: Third-party institutions must bear both CNAS + CMA marks, and the report must be verifiable on the institution's official website
- Matching model: The report model matches the bid/procurement model exactly, character for character; certification is tested by model, not the entire series
- Check lead time: The report should be issued within 2 years; the manufacturer stamps it and retains the right to review the original
Point-by-point response from AnchorCare
Zhejiang Jiunai Technology submits samples by model for testing against the above 12 requirementsAll satisfied(the specific model is as stated on the report cover):
| Terms | AnchorCare's response | Supporting reports |
|---|---|---|
| 4 | PAHs and other harmful volatiles: not detected / TVOC compliant | GB 36246-2018 New National Standard Chemical Testing (SGS) |
| 5 | Compliant with GB/T 18883-2002 | GB/T 18883-2002 Indoor Air Quality (National Environmental Protection Product Quality Inspection Center) |
| 6 | Shore hardness D = 53 (≤55) | SGS soft material performance (ISO 868) |
| 7 | Izod unnotched impact = no break | SGS soft material performance (ISO 180) |
| 8 | Compliant with REACH SVHC | SGS SVHC (bilingual CN/EN) |
| 9 | Main component: polypropylene PP | SGS PP material identification |
| 10 | Environmental Stress Cracking Resistance = 0% (≤0.01%) | SGS environmental stress resistance (GB/T 1842) |
| 11 | No calcite (calcium carbonate) filler | SGS calcium carbonate content |
| 12 | Antibacterial rate >99.9% against all three bacteria | SGS antibacterial (GB/T 31402 / ISO 22196) |
| ★13 | SGS xenon lamp aging 7000h, grey scale >= Grade 3 | SGS xenon lamp aging (GB/T 16422.2) |
| ★14 | Compliant with GB 36246-2018 limits | GB 36246-2018 New National Standard Chemical Testing (SGS) |
| ★15 | Ball rebound ≥95% / impact absorption meets standard / odor ≤ level 3 | National Sports Performance + GB 36246 Physical Items |
The core of campus tendering is GB 36246-2018 Mandatory National Standard(covering Article 14 hazardous substances + Article 15 physical performance). Weather resistance relies on SGS xenon lamp aging 7000h(Article 13), and sports performance depends on Ball rebound and impact absorption(Article 15). For the complete testing checklist, see Industry standards and testing certifications, for the method of choosing a manufacturer, see How to Identify Manufacturers in Yongjia, Wenzhou。
FAQ
What do the clauses marked with ★ in a bid mean?
These are usually substantive clauses (rejection items); failing to meet them results in direct disqualification of the bid. In this tender, items 13 (xenon lamp aging 7000h), 14 (hazardous substances GB 36246), and 15 (sports performance) are ★ items—none can be missing.
Which criteria do ordinary manufacturers most often get stuck on?
Xenon lamp aging 7000h (most do only 1000–3000h) and calcite-free/low calcium carbonate (most add calcium to cut costs). These two criteria directly screen out many low-price OEM factories.
What qualifications are required for a test report?
Third-party testing institution + CNAS/CMA qualifications + consistent with the bid model + manufacturer's stamp. The purchaser has the right to review the originals after the bid is awarded; falsification constitutes a breach of contract.
What does Shore hardness D≤55 mean?
Shore D is the hardness scale for rigid materials. D≤55 requires the surface layer to have a degree of softness (athletic cushioning). AnchorCare tested at D=53, compliant with margin to spare.
Is a 99.9% antibacterial rate easy to achieve?
Requires a dedicated antibacterial formula + SGS GB/T 31402 testing. Sport-Court's antibacterial rate against all three bacteria (E. coli / Staphylococcus aureus / Klebsiella pneumoniae) is >99.9%.
Working on a sports flooring tender / bid?
Call to request the stamped inspection report cover + dedicated bid-response comparison table + similar winning-bid cases
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