Geosynthetic Accreditation Institute

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ASTM D2444
Standard Test Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight)

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List of Accredited Laboratories:

• Lab. #1 - TRI/Environmental, Inc.
• Lab. #42 - NPUST (GSI-Taiwan)
• Lab. #50 - Advanced Drainage Systems

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[Method List]

[Laboratory List]