This standard specifies test methods for pile thickness on carpet bases. This standard applies to carpets whose piles can be cut from the carpet base, but does not apply to carpets with different thicknesses or densities at the same time, unless they can be measured separately.
QB/T 1555-1992 history
2001QB/T 1555-2001 Test method for pile thickness on carpet tufts
1970QB/T 1555-1992 Test method for pile thickness on carpet base