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GB/T 15276-1994
信息处理系统 系统间信息交换 DTE/DCE接口处同步传输的信号质量
Information processing systems--Information exchange between systems--Synchronous transmission signal quality at DTE/DCE interfaces
GB/T 1870-1995
Phosphate rock and concentrate--Determination of moisture content--Gravimetric method
GB/T 5298-1985
Image area on 35mm motion-picture films with masked picture--Positions and dimensions
GB/T 1878-1995
Phosphate rock and concentrate--Determination of iodine content--Spectrophotometric andspecific ion electrode methods
GB/T 1879-1995
Phosphate rock and concentrate--Determination of potassium oxide content--Flame atomic absorptionspectrometric method
GB/T 1880-1995
Phosphate rock and concentrate--Determination of sulfur trioxide content--Gravimetric method
GB/T 1881-1995
Phosphate rock and concentrate--Determination of strontium oxide content--Flame atomic absorptionspectrometric method
GB/T 7069-1997
Textiles--Tests for colour fastness--Colour fastness to bleaching:Hypochlorite