NEN-EN 993-4
Methods of test for dense shaped refractory products - Part 4: Determination of permeability to gases
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 April 1995 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Refractories): | 81.080 |
scope:
This standard specifies a method for the measurement of the permeability to gases of dense, shaped refractory products. The method specified takes account of the dynamic viscosity of the gas, and therefore the results obtained may not be directly comparable with those obtained by earlier methods which took no account of viscosity. The determination is generally made by the passage of air. Other gases may be used when required, and the viscosities of air and nitrogen are given.
Document History
NEN-EN 993-4
April 1, 1995
Methods of test for dense shaped refractory products - Part 4: Determination of permeability to gases
This standard specifies a method for the measurement of the permeability to gases of dense, shaped refractory products. The method specified takes account of the dynamic viscosity of the gas, and...