| 标准简介： |
ISO 4411-1986 液压传动.阀门.压力差/流量的测定 ISO4411-1986 Specifies determination methods requirements for test installations procedures and presentation of results. May also be applied to other fluid power components where similar conditions apply. Accuracy of measurement is divided into three classes (A B and C) which are explained in annex A. Pipe loss is given in annex B. Guidance as to the use of practical units for the presentation of results is given in annex C. Annex D provides a pre-test checklist of those items on which agreement is recommended between the parties concerned. 压缩包解压密码：www.51zbz.com |