Appendix A (continued)
Buyers should specifically request any desired documentation, as applicable, at the time of order, such as:
Certificate of Compliance with API Spec 6A and/or the terms of the purchase order.
Material Test Reports
Heat Treat Records
Non-destructive Test Reports:
PT - Liquid Penetrant Examination
Hydrostatic Test Report and/or Chart Recording of Hydrostatic Test (API Spec 6A omits hydrostatic test of Loose Connectors for all PSL's).
API Spec 6A specifically states, product specification levels do not apply to ring gaskets or studs and nuts.
A summary of what PSL's designate follows:
PSL-1 Equipment meets the minimum requirements of API Spec 6A for:
Qualification, CVN testing for service temperature -50° F and below.
Hydrostatic Test (except for Loose Connectors.
PSL-2 Equipment meets all the requirements of API Spec 6A PSL-1 and:
Controls the limits of variance between the material qualification test coupon and the production material. CVN testing for service temperature -20° F and below.
Volumetric inspection of welds (RT or UT).
Magnetic particle inspection of accessible well wetted surfaces.
PSL-3 Equipment meets all the requirements of API Spec 6A PSL-2 and:
Restricts the tolerance of material chemistry.
Increases the maximum size of the material qualification test coupon in relation to the section thickness of the equipment components. CVN testing for all service temperatures.
Volumetric inspection of all material in body, bonnets, flanges & stems..
Wet Magnetic Particle inspection of all accessible surfaces.
Hydrostatic Test time extended (except for Loose Connectors).
PSL-3G includes all the requirements of PSL 3 plus additional practices described in API 6A, Annex A. PSL-3G designates an additional gas-testing requirement for assembled equipment.