China Test method for the GB Standards Search Result

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	GB/T 5443-1985 The test methods for the technical specifications of ringing and tone for automatic telephone switchingnetwork 电话自动交换网铃流和信号音技术指标测试方法 - 英文版
	GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network 电话自动交换网带内单频脉冲线路信号技术指标测试方法 - 英文版
	GB/T 4506-1984 Method for the test of sharpness and strengthof needles tips 针尖锋利度和强度试验方法 - 英文版
	GB/T 4196-1984 Method for testing the density of tungsten and molybdenum bars 钨、钼条密度测定方法 - 英文版
	GB/T 3971.3-1983 The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network 电话自动交换网多频记发器信号技术指标测试方法 - 英文版
	GB/T 3399-1982 Test method for thermal conductivity of plastics by means of the guarded hot plate 塑料导热系数试验方法护热平板法 - 英文版
	GB/T 1765-1979 Method of producing of paint films for testing heat and humidity resistance，salt-fog resistance and accelerated weathering 测定耐湿热、耐盐雾、耐侯性 (人工加速) 的漆膜制备法 - 英文版

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