This standard specifies the test method for the normal temperature compressive strength of shaped heat insulating refractory products.
GB/T 3997.2-1998 history
2008GB/T 5072-2008 Refractories.Determination of cold compressive strength
1998GB/T 3997.2-1998 Shaped insulating refractory products--Determination of cold crushing strength
GB/T 3997.2-1998 Shaped insulating refractory products--Determination of cold crushing strength was changed to GB/T 5072-2008 Refractories.Determination of cold compressive strength.