scope:

FOREWORD

These specifications were prepared by the Special A.P.I.Committee on the Standardization of Belting for Oil country Purposes, Specifications on Leathr, stitiched Cotton Fabric, Specifications on Leather, Stitiched Cotton Fabric, Balata and Rubber Belting were amended and adopted as final in June, 1927; specifications on Solid Woven Hair and Solid Woven cotton Belging remain tentative. It is urged that these specifications be used in the purchase of belting and that adequate service records by maintained on such belting, in order that additional information may be obtained which can be utilized in the revision or refinement of final specifications and in the for mulation of final speciations on those that are still tentative.

Funds have been appropriated for research work on the fatigue tests and type of belt fasteners, still incomplete.