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ALL SECTORS
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  • GB(National Standard)
  • CB(Shipping)
  • CECS(Engineering Construction)
  • CJ(Urban Construction)
  • CY(News and Publication)
  • DB(Provincial Standard)
  • DL(Electricity & Power)
  • DZ(Geology & Mineralogy)
  • FZ(Spinning & Textile)
  • GA(Public Security)
  • HB(Aviation)
  • HG(Chemical Industry)
  • HJ(Environmental Protection)
  • JB(Machinery)
  • JC(Building Materials)
  • JG(Building & Construction)
  • JJ(Metering)
  • JT(Highway & Transportation)
  • LY(Forestry)
  • MT(Coal)
  • NB(Energy)
  • NY(Agriculture)
  • QB(Light Industry)
  • QC(Automobile & Vehicle)
  • QJ(Aerospace)
  • SH(Petrochemical)
  • SJ(Electronics)
  • SL(Water Resources)
  • SN(Commodity Inspection)
  • SY(Oil & Gas)
  • TB(Railway & Train)
  • YB(Ferrous Metallurgy)
  • YC(Tobacco)
  • YD(Telecommunication)
  • YY(Medical Device)
Database: 365,228(8 Aug 2026)

U.S. Tier 1 belt

U.S. Tier 1 belt, Total:227 items.

The international standard classification for "U.S. Tier 1 belt" includes: .

The Chinese standard classification for "U.S. Tier 1 belt" includes: .


SCC

ATIS - Alliance for Telecommunications Industry Solutions

  • 0700040-2018 North American Spectrum Bands (United States and Canada)

U.S. Military Regulations and Norms

American National Standards Institute (ANSI)

British Standards Institution (BSI)

Acoustical Society of America (ASA)

  • ASA S12.72-2015 American National Standard Procedure for Measuring the Ambient Noise Level in a Room

API - American Petroleum Institute

  • API PUBL 4321-1980 Guide to Water Quality Standards of the United States (FIRST EDITION)