標準號：BS EN 14831-2005
中文標準名稱：緊固件.緊固性能.扭矩/角度簡化試驗法
英文標準名稱：Fasteners - Tightening performance - Torque/Angle simplified test method
標準類型：J13
發布日期：2005/12/12 12:00:00
實施日期：2005/12/12 12:00:00
中國標準分類號：J13
國際標準分類號：21.060.10;21.060.20
引用標準：EN 20898-2;EN ISO 898-1;EN ISO 4759-3;EN ISO 7093-1;EN ISO 16047
適用范圍：This document specifies a test method for fasteners with ISO metric thread from M6 to M16 and with propertyclasses 8.8 to 12.9 for bolts and screws and with property classes 8 to 12 for nuts, to check their tighteningperformance in the elastic range.It applies to steel fasteners with an ISO metric thread according to ISO 68-1.It applies to fasteners having a friction coefficient from 0,06 up to and including 0,18. For higher values offriction coefficients, the dispersion of test results increases and the test method should not be applied. Forlower values friction of coefficients, which are for very specific applications and require special lubrication, thisdocument does not apply.This comparative test method can be used to monitor stability of a production process (such as coating,lubrication, shot-blasting) or to compare various production manufacturing lots. It can also be used to detectfasteners, which are out of specification.NOTE This simplified test method has been developed to avoid systematic use of more complex procedures.In case of dispute the torque/tension test method according to EN ISO 16047 is the referee test.This document does not apply for assessment of fasteners in actual assembly conditions; it does not allow themeasurement of operating friction coefficients.