Sign In |Help & Support
ALL SECTORS
  • ALL SECTORS
  • 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)

qj648-1981

qj648-1981, Total:372 items.

The international standard classification for "qj648-1981" includes: Structure and structure elements .

The Chinese standard classification for "qj648-1981" includes: Structural members of electrical devices .


Professional Standard - Aerospace

未注明发布机构

British Standards Institution (BSI)

International Organization for Standardization (ISO)

American Welding Society (AWS)

American Water Works Association (AWWA)

American National Standards Institute (ANSI)

American Society of Mechanical Engineers (ASME)

Lithuanian Standards Office

AENOR

SCC

CZ-CSN

  • CSN ISO 4192:1992 Aluminium and aluminium alloys - Determination of lead content - Flame atomic absorption spectrometric method
  • CSN ISO 4193:1992 Aluminium and aluminium alloys - Determination of chromium content - Flame atomic absorption spectrometric method
  • CSN EN 25968-1994 Circular screwing dies: Terminology

German Institute for Standardization

  • DIN EN 25968:1990 Circular screwing dies; terminology (ISO 5968:1981); german version EN 25968:1989
  • DIN EN 20865:1992-02 Slots in platens for projection welding machines (ISO 865:1981); german version EN 20865:1991
  • DIN EN ISO 3593:1994-10 Starch - Determination of ash (ISO 3593:1981); German version EN ISO 3593:1994

AT-ON

BE-NBN

Association Francaise de Normalisation

European Committee for Standardization (CEN)

Aerospace Industries Association

SAE - SAE International

IEEE - The Institute of Electrical and Electronics Engineers@ Inc.

qj648-1981