| 1. | Acoustics . preferred reference quantities for acoustic levels 声学.声级用优选基准数值 |
| 2. | Acoustics - preferred reference quantities for acoustic levels 声学.声级测量用优先参考数值 |
| 3. | Acoustical levels and reference quantities 声学量的级及其基准值 |
| 4. | Reference quantities for acoustical levels 声学级的基准量 |
| 5. | Reference quantity set 参引量集 |
| 6. | Application of statistics . treatment of measurement results . use of reference quantities in methods of measurement 统计学应用.测量结果的处理.测量方法中标准量值的应用 |
| 7. | Logarithmic quantities and units - logarithmic rations , levels , notation for expressing reference quantities and measurement conditions 对数值和单位.第2 bb . 1部分:基准数值表达和测量条件 |
| 8. | Measurement and control ; digital measuring instruments ; instruments for measuring time reference quantities ; definitions , tests and data sheet details 测量和控制.数字式测量仪表.测量时间基准量的仪器.定 |