Standards

This test method covers the determination of the impact resistance of thermoplastic pipe and fittings under specified conditions of impact by means of a tup (falling weight) . Three interchangeable striking noses are used on the tup, differing in geometrical configuration. Two specimen holders are described.

The purpose of these abbreviations is to provide uniform contractions of terms relating to plastics. Abbreviated terminology has evolved through widespread common usage. This compilation of abbreviated nomenclature has been prepared to avoid the occurrence of ore than one abbreviation for a given plastics term, and double meanings for particular abbreviations.

This specification covers poly(vinyl chloride) (PVC) pipe made in standard thermoplastic pipe dimension ratios and pressure rated for water (see appendix). Included are criteria for classifying PVC plastic pipe materials and PVC plastic pipe, a system of nomenclature for PVC plastic pipe, and requirements and test methods for materials, workmanship, dimensions, sustained pressure, burst pressure, flattening, and extrusion quality. Methods of marking are also given.

This International Standard gives specifications for the angular coordinate system to be used in the design of scales, reticles or other display means incorporated in instruments for determining optical data on human eyes or corrective lenses for human eyes.

 This standard establishes the basic principles for carrying out vibration measurement and processing data, with regard to evaluating vibration effects on buildings. The evaluations of the effects of building vibration are primarily directed at structural response, and include appropriate analytical methods where the frequency, duration and amplitude can be defined. It only deals with the measurement of structural vibration and excludes the measurement of   airborne sound pressure and other pressure fluctuations. 

This standard provides general guidance on methods of carrying out penetrant inspection on materials and components both during manufacture and in service. It does not deal with acceptance or rejection. Penetrant inspection is used to locate discontinuities, such as laps, folds, cracks, porosity and fissures, which are open to the surface of a material or component. Penetrant techniques can be used on materials irrespective of their physical properties, provided that the surface is normally non-absorbent and compatible with the penetrant process. 

This standard provides general guidance on

. This standard specifies the minimum requirements for industrial illuminators used for viewing radiographs.

 This standard lays down general requirements on penetrant flaw detectors and their functional units which are designed to reveal invisible, or poorly visible to the eye, surface discontinuities in metals and non-metals of any geometry and at any stage of manufacture.

This part of GYS 120 specifies an ultrasonic testing method for determining bond defects between the bearing metal and the backing.  The test can be performed on metallic multilayer plain bearings consisting of backings lined with bearing metal based on lead and tin, with layer thickness greater than or equal to 0, 5 mm.  The test is not possible within half the diameter of the crystal from the edges of the bearing, oil holes, grooves, etc. because of undefined reflections. In bearings with dovetail keying grooves at the bond, the test may not be possible along the edges of the dovetails.