Standards
This standard provides general guidance on the verification procedures to be applied when
carrying out penetrant inspection, in accordance with ISO 3452. These tests are intended to ensure that the
penetrant system is functioning correctly and that there has been no harmful
deterioration of the process materials during service. Generally, the frequency
of checking penetrant materials and black light sources will depend on the
frequency and conditions of usage. Specific and maximum intervals should be recommended
by the manufacturer.
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 standard lays down the general specifications, requirements and tests of safety devices for fuel gases and oxygen or compressed air used downstream of cylinder or pipeline outlet regulators and of pipeline outlet valves, and upstream of blowpipes for welding, cutting and allied processes. It does not specify location and combination of these devices in the gas system.
This standard covers graphical symbols which are placed on resistance welding equipment, e.g., indicators and operator's controls, in order to instruct the persons handling the equipment as to its use and operation.
This standard specifies the maximum external leakage rates, which are acceptable for equipment used for welding, cutting and allied processes. It applies to individual components which are used in the gas supply to a blowpipe from the connecting point of the hose (outlet of the cylinder valve or connecting point to a gas supply plant). It does not apply to gas supply plants.
This standard provides guidance on levels of imperfections in arc-welded joints in steel. Three levels are given in such a way as to permit application for a wide range of welded fabrications. The levels refer to production quality and not to the fitness-for-purpose (see 3.1) of the product manufactured. This standard applies to - unalloyed and alloyed steels – the following welding processes and their defined sub-processes in accordance with ISO 4063.
This specifies designations for filler materials for soft soldering, brazing and braze welding, on the basis of their chemical composition. For brazing and braze welding materials only, the designation includes their solidus /liquidus temperatures. It deals only with those filler metals used in soft soldering, brazing
and braze welding which do not incorporate flux, either as a covering or as an
integral part of the filler material.
This standard specifies a test method for determining the acceptance limits of surface discontinuities detected by magnetic particle inspection, when such an inspection procedure has been contractually agreed upon at the request of the purchaser. It applies to all magnetic steel castings; whatever casting process is used. A steel shall be considered to be magnetic if the magnetic induction is greater than 1 T for a magnetic field
strength equal to 2, 4 KA/m.
This standard specifies a test method for determining the acceptance limits of surface discontinuities detected by liquid penetrant inspection, when such an inspection procedure has been contractually agreed upon at the request of the purchaser. It applies to all steel castings; whatever casting process is used.
For the interpretation of radiographs and the assignment of radiographic quality levels to a casting, it is necessary to use a standard set of reference radiographs. The reference radiographs available from ASTM (see clause 2) are the only internationally used and recognized documents that may be used for this purpose.