{
  "id": "limits:china-public-3-15ghz",
  "collection": "limits",
  "slug": "china-public-limit-3-15-ghz",
  "name": "China public limit, 3–15 GHz",
  "summary": "f/7500 W/m² (f in MHz), so 0.47 W/m² at 3.5 GHz and 0.77 W/m² at 5.8 GHz — the band that covers 5G mid-band and 5 GHz Wi-Fi.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "standardId": "china-gb-8702",
    "population": "general-public",
    "quantity": "power-density",
    "band": {
      "minHz": 3000000000,
      "maxHz": 15000000000,
      "label": "3000–15,000 MHz"
    },
    "averagingSeconds": 360,
    "formula": "f/7500 W/m² (f in MHz)",
    "value": {
      "quantity": "power-density",
      "unit": "µW/m²",
      "value": 400000,
      "max": 2000000,
      "basis": "regulatory",
      "note": "GB 8702-2014 Table 1: E = 0.22 √f V/m and Seq = f/7500 W/m² from 3–15 GHz, then a flat 27 V/m and 2 W/m² from 15–300 GHz. The range is the band edges: 0.4 W/m² at 3 GHz to 2 W/m² at 15 GHz; 0.467 W/m² at 3500 MHz.",
      "sourceIds": [
        "china-gb-8702"
      ]
    }
  },
  "sources": [
    {
      "id": "china-gb-8702",
      "title": "GB 8702-2014 电磁环境控制限值 (Controlling limits for electromagnetic environment)",
      "publisher": "Ministry of Ecology and Environment of the People's Republic of China",
      "url": "https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/hxxhj/dcfsbz/201410/t20141022_290449.htm",
      "year": 2014,
      "kind": "regulation",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/limits/china-public-limit-3-15-ghz",
    "html": "https://emfbase.com/limits/china-public-limit-3-15-ghz",
    "markdown": "https://emfbase.com/limits/china-public-limit-3-15-ghz.md",
    "collection": "https://emfbase.com/api/limits"
  }
}