Standards

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.   

This part of ISO 4386 specifies a method of test for the determination of the bond strength between the bearing metal and the backing.  The test can be applied to multilayer plain bearings with backings of steel, cast iron, or copper alloys and with bearing metal based on lead, tin, copper, or aluminum with layer thickness of > 2mm.  The test is suitable for production control as well as for comparative investigations into the influence on the bond strength of various processes and types of material for non-destructive ultrasonic testing of the bond between bearing metal and backing for bearing metal layer thickness > mm, See ISO 4386/1.

. This part of GYS 120 specifies a non-destructive penetrant testing for determining bond defects and discontinuities in the sliding surface of the bearing. The penetration method is used to detect - bond defects in the transitional area between the bearing backing/bearing material on the end faces and joint faces of multilayer plain bearings which cannot be detected by the ultrasonic testing method specified in ISO 4386- 1; discontinuities in the sliding surface of the bearing. The penetration method is applicable, in principle, to finished multilayer plain bearings.

This standard specifies requirements for full peripheral ultrasonic shear wave testing of seamless and welded tubes for pressure purposes, with the exception of submerged arc-welded (SAW) tubes, for the detection of longitudinal imperfections according to four different acceptance levels (see table 1). This standard is applicable to the inspection of tubes with an outside diameter greater than or equal to 9 mm, and with an outside diameter-to-thickness ratio greater than or equal to 5. For tubes with an outside diameter-to-thickness ratio less than 5, one of the methods specified in Annex A shall be used by agreement between manufacturer and purchaser. 

  This standard specifies requirements for eddy current testing of seamless and welded tubes for pressure purposes, with the exception of submerged arc-welded (SAW) tubes, for the detection of imperfections, according to two different acceptance levels (see tables 1 and 2).  It is applicable to the inspection of tubes with an outside diameter greater than or equal to 4 mm. 

This standard specifies requirements for full peripheral ultrasonic shear wave testing of seamless tubes for pressure purposes for the detection of transverse imperfections, according to four different acceptance levels (see table 1). It is also applicable to the inspection of tubes with an outside diameter greater than or equal to 9 mm. 

  This standard specifies requirements for the ultrasonic testing of the weld seam of electric resistance and induction welded steel tubes for the detection of predominantly radial longitudinal imperfections, according to two different acceptance levels.