E12灯头止规|7006-28C-1|E12灯头量规|灯头量规

E12灯头止规 7006-28C-1

E12 Not Go gauge for caps on finished lamps 7006-28C-1

目的：

PURPOSE:

检验成品灯上E12灯头螺纹最小外径（尺寸d）。

To check the minimum outside (major) diameter of the screw thread, dimensiion d, of E12 caps on finished lamps.

检验：

TESTING:

当量规套在成品灯（灯头朝上）的灯头螺纹上时，灯头中心触点不应凸出量规的X面。

When the gauge is placed over the thread of the cap on a finished lamp, held cap uppermost, the centre contact shall not project beyond surface X. 检验仅利用量规自身重量进行。

Only the mass of the gauge itself shall be used in the test.

E12灯头量规一套包含以下四种量规：