GB/T 20247-2006
声学 混响室吸声测量
Acoustics - Measurement of sound absorption in a reverberation room
- 实施日期
- 2006-11-01
- ICS 分类
- 17.140
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 70,494 条
GB/T 20247-2006
Acoustics - Measurement of sound absorption in a reverberation room
GB/T 20246-2006
Acoustics - Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment - Engineering method
GB/T 20243.1-2006
Acoustics - Measurement of the influence of road surface on traffic noise Part 1: Statistical Pass-By method
GB/T 20242-2006
Acoustics - Procedures for the measurement of real-ear acoustical characteristics of hearing aids
GB/T 18272.8-2006
Industrial-process measurement and control-Evaluation of system properties for the purpose of system assessment-Part8:Assessment of non-task-reated system properties
GB/T 18272.7-2006
Industrial-process measurement and control-Evaluation of system properties for the purpose of system assessment-Part7:Assessment of system safety
GB/T 18272.6-2006
Industrial-process measurement and control-Evaluation of system properties for the purpose of system assessment-Part6:Assessment of system operability
GB/T 18272.4-2006
Industrial process measurement and control-Evaluation of system properties for the purpose of system assessment-Part 4:Assessment of system performance
GB/T 16404.3-2006
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning
GB/T 5266-2006
Acoustics - Measurements of the longitudinal wave velocity and attenuation coefficient for underwater acoustical materials - Pulse tube method
GB/T 20245.1-2006
Expression of performance of electrochemical analyzers Part1: General
GB/T 20235-2006
Technical specification for silver-tin oxide electric contact materials
GB/T 5023.6-2006
Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V Part 6: Lift cables and cables for flexible connections
GB/T 10069.1-2006
Measurement of airborne noise emitted by rotating electrical machines and the noise limits Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines
GB/T 1971-2006
Rotating electrical machines―Terminal markings and direction of rotation
GB/T 4718-2006
Vocabulary used in fire alarm equipment
GB 14048.1-2006
Low-voltage switchgear and controlgear―Part 1: General rules
GB 10069.3-2006
Measurement of airborne noise emitted by rotating electrical machines and the noise limits―Part 3: Noise limits
GB 12476.2-2006
Electrical apparatus for use in the presence of combustible dust―Part 1-2: Electrical apparatus protected by enclosures and surface temperature limitation―Selection, installation and maintenance
GB 3836.16-2006
Electrical apparatus for explosive gas atmospheres―Part 16: Inspection and maintenance of electrical installation(other than mines)