This standard specifies the structure, type and size, technical requirements, installation adjustment, quality inspection, coating and marking of the upper gauge of standard gauge railway double-decker passenger cars (hereinafter referred to as the upper gauge of double-decker passenger cars). This standard applies to the design and manufacture of upper limit gauges for double-decker passenger cars.
GB/T 16904.4-1997 history
2006GB/T 16904.2-2006 Checking of rolling stock clearance for standard gauge railways.Part 2:clearance treadle
1997GB/T 16904.4-1997 Rolling stock gauge for standard gauge railway. The gauge for upper part of double-deck coaches
GB/T 16904.4-1997 Rolling stock gauge for standard gauge railway. The gauge for upper part of double-deck coaches was changed to GB/T 16904.2-2006 Checking of rolling stock clearance for standard gauge railways.Part 2:clearance treadle.