DIN 44013:1990
目标基准等效值计.结构和应用
Objective reference equivalent meter; construction and application
- 标准号
- DIN 44013:1990
- 发布
- 1990年
- 发布单位
- 德国标准化学会
- 当前最新
- DIN 44013:1990
- 被代替标准
- DIN 44013-68
- 适用范围
- The standard specifies the requirements to which an objective reference equivalent measuring equipment has to comply with in order to receive a good reproducibility of the measured values and a sufficient compliance with subjective comparative measurements. The measuring methods simulate the conditions of telefone connections with conventional handsets.