GB/T 7962.18-2010
Test methods of colourless optical glass.Part 18:Knoop hardness (English Version)

Standard No.
GB/T 7962.18-2010
Language
Chinese, Available in English version
Release Date
2011
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 7962.18-2010
Replace
GB/T 7962.21-1987
Scope
This part of GB/T 7962 specifies the testing equipment, testing procedures and data processing for the K-hardness of colorless optical glass. This section applies to the measurement of the K-hardness of colorless optical glass.

GB/T 7962.18-2010 Referenced Document

  • ISO 9385 Glass and glass-ceramics; Knoop hardness test

GB/T 7962.18-2010 history

  • 2011 GB/T 7962.17-2010 Test methods of colourless optical glass.Part 17:Autocollimation test method for refractive index in the ultraviolet and infrared wave band
  • 1987 GB/T 7962.18-1987 Colourless optical glass test methods--Autocollimation test method for refractive index in the ultraviolet and infrared wave band

GB/T 7962.18-2010 Test methods of colourless optical glass.Part 18:Knoop hardness has been changed from GB/T 7962.21-1987 Colourless optical glass test methods--Knoop hardness.

Test methods of colourless optical glass.Part 18:Knoop hardness

GB/T 7962.18-2010 -All Parts

GB/T 7962.1-2010 Test methods of colourless optical glass.Part 1:Refractive index and coefficient of dispersion GB/T 7962.10-2010 Test methods of colourless optical glass.Part 10:X-rays stability GB/T 7962.11-2010 Test methods of colourless optical glass.Part 11:Precise test method for refractive index in the visible wave band GB/T 7962.12-2010 Test methods of colourless optical glass.Part 12:Spectral internal transmittance GB/T 7962.13-1987 Colourless optical glass test methods--Coefficient of thermal conductivity GB/T 7962.14-2010 Test methods of colourless optical glass.Part 14:Resistance to acid GB/T 7962.15-2010 Test methods of colourless optical glass.Part 15:Resistance to humidity GB/T 7962.16-2010 Test methods of colourless optical glass.Part 16:Linear thermal expansion coefficient,transformation temperature and yield point temperature GB/T 7962.17-2010 Test methods of colourless optical glass.Part 17:Autocollimation test method for refractive index in the ultraviolet and infrared wave band GB/T 7962.18-2010 Test methods of colourless optical glass.Part 18:Knoop hardness GB/T 7962.19-2010 Test methods of colourless optical glass.Part 19:abration factor GB/T 7962.2-2010 Test methods of colourless optical glass.Part 2:Optical homogeneity.Fizeau plano-interferometry GB/T 7962.20-2010 Test methods of colourless optical glass.Part 20:Density GB/T 7962.21-2019 Test method of colourless optical glass—Part 21：Resistance to attack by aqueous alkaline solutions GB/T 7962.22-2019 Test method of colourless optical glass—Part 22：Resistance to attack by aqueous alkaline phosphate-containing GB/T 7962.23-2019 Test method of colourless optical glass—Part 23: Resistance to climatic GB/T 7962.3-2010 Test methods of colourless optical glass.Part 3:Optical homogeity.Holographic interferometry GB/T 7962.4-2010 Test methods of colourless optical glass.Part 4:Temperature coefficient of refractive index GB/T 7962.5-2010 Test methods of colourless optical glass.Part 5:Stress birefringence GB/T 7962.6-2010 Test methods of colourless optical glass.Part 6:Young's modulus,shear modulus and Poisson's ratio GB/T 7962.7-1987 Colourless optical glass test methods--Examination method for extent of stria GB/T 7962.8-2010 Test methods of colourless optical glass.Part 8:Bubble GB/T 7962.9-2010 Test methods of colourless optical glass.Part 9:Ceofficient of optical absorption


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