Standards
This standard describes exhaust emission requirements for all new domestic and commercial vehicles which have been registered in Guyana for the first time after December 31, 1997. This standard also describes exhaust emission requirements, measurement methods and measurement equipment for all vehicles, which are imported into Guyana after December 31, 1997. All imported vehicles would be required to conform to exhaust emission limits specified in the standard. Accordingly, the exhaust emission limits must be fully documented and certified by the suppliers/manufacturers, from the country of origin.
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 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 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.
This standard specifies requirements for the ultrasonic testing of the weld seam
of submerged arc-welded (longitudinally or spirally) tubes for the detection of
imperfections oriented predominantly parallel to and/or at right angles to the
weld seam, according to three different acceptance levels (see table 1 and
table 2). This standard covers the
inspection of tubular products with outside diameter greater than or equal to
150 mm.
This standard specifies requirements for ultrasonic thickness testing of seamless and welded tubes for pressure purposes, with the exception of submerged arc-welded (SAW) tubes, for verification of hydraulic leak-tightness.
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.