主题：IEC 60268

序号	标准号	标准名称(仅供参考)
1	IEC 60268-1:1988	SOUND SYSTEM EQUIPMENT - PART 1: GENERAL
2	IEC 60268-10:1991	SOUND SYSTEM EQUIPMENT - PART 10: PEAK PROGRAMME LEVEL METERS
3	IEC 60268-11:1991	SOUND SYSTEM EQUIPMENT - PART 11: APPLICATION OF CONNECTORS FOR THE INTERCONNECTION OF SOUND SYSTEM COMPONENTS
4	IEC 60268-12:1994	SOUND SYSTEM EQUIPMENT PART 12: APPLICATION OF CONNECTORS FOR BROADCAST AND SIMILAR USE
5	IEC 60268-13:1998	SOUND SYSTEM EQUIPMENT - PART 13: LISTENING TESTS ON LOUDSPEAKER
6	IEC 60268-14:1980	SOUND SYSTEM EQUIPMENT - PART 14: CIRCULAR AND ELLIPTICAL LOUDSPEAKERS; OUTER FRAME DIAMETERS AND MOUNTING DIMENSIONS
7	IEC 60268-15:1996	PREFERRED MATCHING VALUES FOR THE INTERCONNECTION OF SOUND SYSTEM COMPONENTS
8	IEC 60268-16:2003	SOUND SYSTEM EQUIPMENT - PART 16: OBJECTIVE RATING OF SPEECH INTELLIGIBILITY BY SPEECH TRANSMISSION INDEX
9	IEC 60268-17:1991	SOUND SYSTEM EQUIPMENT - PART 17: STANDARD VOLUME INDICATORS
10	IEC 60268-18:1995	SOUND SYSTEM EQUIPMENT - PART 18: PEAK PROGRAMME LEVEL METERS - DIGITAL AUDIO PEAK LEVEL METER
11	IEC 60268-2:1991	SOUND SYSTEM EQUIPMENT - PART 2: EXPLANATION OF GENERAL TERMS AND CALCULATION METHODS
12	IEC 60268-3:2000	SOUND SYSTEM EQUIPMENT - PART 3: AMPLIFIERS
13	IEC 60268-4:2004	SOUND SYSTEM EQUIPMENT - PART 4: MICROPHONES
14	IEC 60268-5:2003	SOUND SYSTEM EQUIPMENT - PART 5: LOUDSPEAKERS
15	IEC 60268-6:1971	SOUND SYSTEM EQUIPMENT - PART 6: AUXILIARY PASSIVE ELEMENTS
16	IEC 60268-7:1996	SOUND SYSTEM EQUIPMENT PART 7: HEADPHONES AND EARPHONES
17	IEC 60268-8:1973	SOUND SYSTEM EQUIPMENT - PART 8: AUTOMATIC GAIN CONTROL DEVICES
18	IEC 60268-9:1977	SOUND SYSTEM EQUIPMENT - PART 9: ARTIFICIAL REVERBERATION. TIME DELAY AND FREQUENCY SHIFT EQUIPMENT
19	IEC/TR 60268-18:1995	SOUND SYSTEM EQUIPMENT - PART 18: PEAK PROGRAMME LEVEL METERS - DIGITAL AUDIO PEAK LEVEL METER

楼主了解得真全，请问第10项和第19项是什么区别？

其实是一个版本.

没有 具体内容啊!