Resistance welding. Destructive tests on welds in metallic materials. Torsion test of resistance spot welds1 Scope This International Standard specifies specimen dimensions, testing equipment and the procedure for torsion testing of resistance spot welds with single sheet thicknesses ranging from 0,5 mm to 6,0 mm in steels. It can be used for non ferrous materials in certain circumstances. The aim of this International Standard is to determine the weld diameter and the failure type of fractured specimens, and to evaluate the influence of different steel

This European Standard specifies hardened and tempered plain washers intended for assembly with large series hexagon high-strength structural bolts and nuts with threads from M12 to M36 inclusive

numerically controlled (NC) turning machines and turning centres with inverted vertical workholding spindles

construction and control testing of hydraulically bound pavements

5 Data acquisition and control

These systems use simple devices to collect greywater from appliances and deliver it directly to the points of use

As a project manager or engineer responsible for training mechanics

ISO 787-22 on general methods of test for pigments and extenders is useful for:

Who is BS 4834 - Specification for inset open fires without convection for

and testing and inspection procedures to verify compliance and facilitate quality control

BS 9990: 2006 does not cover hose reels

health care facilities and wherever medical devices are placed in sterile barrier systems and sterilized

NOTE: Such hoists are used to transfer persons and/or goods between defined landing levels on sites of engineering and construction