Presentation 2nd IAG Task1 Codes of practice - ESR Technology

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EN 13706 : 2001Specifications for reinforced plastic composite pultruded profilesName Definition Acceptance LevelBlister A rounded elevation of the pultruded surface with Permitted if formed between surfacing veilboundaries that may be more or less sharply defined.NOTE The rounded elevation somewhat resembles inshape a blister on the surface of human skin. Blisters mayexist within the pultrusion as a hollow delaminated area(gas-filled) under a raised portion of the surface.Crack A visual separation that occurs internally or penetrates Noneperpendicularly down from the pultruded surface to theequivalent of one full layer or more transverse to thereinforcement.and next layer of reinforcement. Size notgreater than 15 % of width and not greaterthan 10 mm in any direction. No morethan 1 per 5 m of length.Product must meet test requirements andnot exceed dimensional tolerances.Crater A small, shallow pultrusion surface imperfection, greater None greater than 5 mm diameter andthan 1 mm in diameter.1 mm depth. No more than two per metrefor craters between 1 mm and 5 mmdiameter.Delamination The visible separation of two or more layers or plies of NoneDieParting Linereinforcing material within a pultrusion.A lengthwise flash or depression on the surface of apultruded plastic part.NOTE The die-parting line is associated with the areawhere separate pieces of the die join together to form theThe line projection caused by the dieparting line shall not extend past theproducts surface by more than 0,20 mm. Itshall not create a sharp edge or haveInternalDry Fibrecavity.A condition in which fibres are not fully impregnated byresin during pultrusion.loose fibres. Repair if limits exceeded.Permissible if area less than 0,5 mmdiameter and not more than 2 % of the
MMS 13 Assessment and Criticality of Defects & Damage in Materials SystemsNORSOK STANDARD M-622:1999Recommended practice for non-destructive examination and testing of lowto medium pressure GRP piping systemsNORSOK M-622 considers a number of inspection techniques includingultrasonics, radiography, thermography and acoustic emission.In each case a list is given of the types of defect which the technique iscapable of detecting.Acceptance criteria are provided for some of the defect types.© 2003 AEA Technology plc
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Page 21 and 22: BS 4994: 1987 Table 16 - Permissibl
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Presentation 2nd IAG Task1 Codes of practice - ESR Technology

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