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Database: 365,228(8 Aug 2026)

Aperture Calculation Method

Aperture Calculation Method, Total:23 items.

The international standard classification for "Aperture Calculation Method" includes: Ceramic products , Microbiology of water , Geotextiles , Photographic equipment. Projectors , Refractories .

The Chinese standard classification for "Aperture Calculation Method" includes: Basic standards and general methods for chemical additive , Petroleum drilling , Special ceramics , Separating machinery , Other textile articles , Lens , Fireproof material in general .


Professional Standard - Petrochemical Industry

  • SH/T 0572-1993 Calculation method for catalyst pore size distribution (nitrogen desorption constant temperature line calculation method)

Professional Standard-Ships

  • CB/Z 20001-2011 Methods for flood hole design and calculation of submarine

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence

  • GJB 5089-2002 Calculation method for the resolution and the target's pixel position of satellite-borne synthetic aperture radar

Taiwan Provincial Standard of the People's Republic of China

  • CNS 4577-1978 Bolted Connections with Reduced Body( Studies Relating to the Calculation of Bolted Connection)

Professional Standard - Petroleum

  • SY/T 5464-2009 Computational method for logging and perforating quality index
  • SY/T 5784-1993 Correction and Calculation Method of Perforation Layer Depth
  • SY/T 5464-1992 Labour quota of petroleum communication equipments installation

国家能源局

  • SY/T 5464-2021 Statistics and calculation method of well logging and perforation production indexes

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

  • GB/T 32361-2015 Test methods for pore size properties of membrane filters—Bubble point and mean flow pore test
  • GB/T 1967-1996 Test method for pore diameter of porous ceramic
  • GB/T 14799-1993 Geotextiles-Determining apparent opening size of a geotextile by sieving

Professional Standard - Machinery

  • JB/T 8248.2-1999 Method for measurement for effective aperture and relative aperture of camera lenses

Professional Standard - Ferrous Metallurgy

  • YB/T 118-1997 Test method for pore size distribution of refractory

Korean Agency for Technology and Standards (KATS)

  • KS B 4906-1986 The estimation of equivalent diameter in the heat treatment of stee1
  • KS B 5409-1982 Photographic lenses ? Methods for the measurement of the effective aperture, F-number and relative aperture
  • KS B 5409-2013 Photographic lenses ? Methods for the measurement of the effective aperture, F-number and relative aperture
  • KS B 5409-1998 Photographic lenses-Methods for the measurement of the effective aperture, F-number and relative aperture

Association Francaise de Normalisation

KR-KS

  • KS B 4906-1986(2023) Equivalent diameter calculation method for steel heat treatment
  • KS B 5409-2023 Methods for the measurement of the effective aperture, F-number and relative aperture of photographic lenses

CU-NC

  • NC 18-37-1984 Passenger and Goods Transport. Turning Radii. Calculation Methods

Spanish Association for Standardization (UNE)

  • UNE 18-150-1986 Bearings. How to calculate diameter and accuracy of rotation
  • UNE 18-150-1987 Bearings. How to calculate diameter and accuracy of rotation