1. Scope
This practice covers microwave (MW) examination of electro-fusion couplings and joints made entirely of high density polyethylene (HDPE) for the purpose of joining HDPE piping. MW examination detects the presence of improper fusion between the parts due to multiple factors, including improper fusion practice or inadvertent introduction of foreign material into the joint.
The use of HDPE in critical applications is expanding because of the materials low-cost, ease of installation, and corrosion resistance. Critical applications include Nuclear power and oil and gas. The HDPE users do not currently have a standard that governs the type of examination and acceptance criteria to differentiate good from poor electro-fusion joints. An ASTM standard would help the industry to specify routine examiantion of these critical joints.
Keywords
non destructive examination, nde, plastic, pipe
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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