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| ASTM - American Society For Testing and Materials |   | |
| ASTE - The American Society of Test Engineers |   | ||
| IEST - Institute of Environmental Sciences and Technology |   | ||
| NCSL Internatinnal (Metrology) |   | ||
| NETA - InterNational Electrical Testing Association. |   | ||
| A2LA - American Association for Laboratory Accreditation 5301 Buckeystown Pike, Ste 350 - Frederick, MD 21704 USA |   | ||
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