Geosynthetic Accreditation Institute


ASTM D7466
Standard Test Method for Measuring Asperity Height of Textured Geomembranes


List of Accredited Laboratories:

·         Lab. #1 - TRI Environmental Inc.

·         Lab. #3 - Golder Associates Inc.

·         Lab. #4 - Geosynthetic Institute

·         Lab. #13 - TRI Environmental Inc. (Precision Geosynthetic Laboratory)

·         Lab. #14 - Geotechnics Inc.

·         Lab. #20 - GeoTesting Express Inc.

·         Lab. #26 - Agru America Inc. (Georgetown Lab)

·         Lab. #38 - CTT Group (SAGEOS)

·         Lab. #41 - SGI Testing Services, LLC

·         Lab. #43 - Ardaman & Associates Inc.

·         Lab. #49 - Engepol Geossinteticos Ltda

·         Lab. #51 - Solmax International Inc. (Canada)

·         Lab. #53 - Polytex SA (Antofagasta)

·         Lab. #55 - Atarfil Geomembranes S.L.

·         Lab. #56 - Polytex SA (Santiago Lab)

·         Lab. #60 - TDM Geosintéticos S.A.

·         Lab. #61 - Raven Industries Inc.

·         Lab. #62 - Solmax International Asia Pacific And. Bhd.

·         Lab. #64 - Agru America (NV)

·         Lab. #66 - Rowad International Geosynthetics Co. Ltd.

·         Lab. #69 - GSE Lining Technology Co. (Thailand)

·         Lab. #70 - RSE Geolab, LLC

·         Lab. #71 - Plásticos Agrícolas y Geomembranas S.A.C.

·         Lab. #76 - TEHMCO S.A.

·         Lab. #78 - Plásticos Agrícolas y Geomembranas de Mexico S.A. de C.V. (PQA)

·         Lab. #79 - TRI Geosynthetic Testing & Services (Suzhou)

·         Lab. #81 - GSE Lining Technology GmbH - Solmax - Germany

·         Lab. #83 - GSE Lining Technology - Solmax - Egypt

·         Lab. # 85 - Plásticos Agrícolas y Geomembranas S.A.C. (PAG) - Peru

·         Lab. #89 - Megaplast India Pvt. Ltd.

·         Lab. #98 - NeoPlastic Filmes e Embalagens Plasticas Ltda.

·         Lab. #99 - Atarfil Middle East

·         Lab. #100 - Atarfil Geomembranes USA

·         Lab. #102 - SKAPS Industries


[Method List]

[Laboratory List]