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China directivity GB Standards Search System


GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services.
  •  China "directivity" GB Standards List:
  • Standard  Code GB Standard Title Standard Class Order
  • GB/T 32524.1-2016
  • Acoustics—Determination of sound power level and directivity character of power capacitor unit using sound pressure—Part 1: Precision method for hemi-anechoic rooms directivity
    China National Standards
  • GB/T 32524.2-2016
  • Acoustics—Determination of sound power level and directivity character of power capacitor using sound pressure—Part 2: Engineering methods for an essentially free field over a reflecting plane directivity
    China National Standards
  • GB/T 18311.20-2007
  • Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20: Examinations and measurements - directivity of fibre optic branching devices directivity
    China National Standards
  • SJ 2534.10-1986
  • Test procedures for antennas--Measurement of power gain and directivity directivity
    China Electronics Standards

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