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Amend 1 to License 31-21281-01 for Dunn Geoscience Corp, amending Items 6-9 re use of 10 mCi Cs-132 & 50 mCi Am-241 in Troxler Model 3400 series portable moisture/density gauges to measure properties of const matls.

Accession Number: ML20210B664

Date Released: Tuesday, October 29, 2024

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• ML20210B680 - Forwards Amend 1 to License 31-21281-01. (2 page(s), 10/31/1985)
• ML20210B693 - Notifies of changes to Items 6a,7 & 8c of License 31-21281-01.Training certificate from Troxler & qualifications for author encl.License fee transmittal encl. Fee paid. (4 page(s), 9/16/1985)
• ML20210B703 - Requests payment of fee for 850916 amend to License 31-21281-01.Fee required prior to issuance of amend. (1 page(s), 10/3/1985)
• ML20210B709 - Submits addl info re application for license.Permanent storage of unit will be only in area designated as Troxler instrument storage area.Maint of gauge involving removal of source holder will be performed by mfg. (1 page(s), 5/4/1983)
• ML20210B735 - Requests response to 830302 request for addl info re 830204 application for license within 30 days or application will be considered abandoned. (1 page(s), 4/13/1983)
• ML20210B739 - Forwards request for addl info re 830204 application for license.Info requested includes description of lock-out procedures for permanent & temporary site storage locations & maint on gauges. (2 page(s), 3/2/1983)
• ML20210B744 - Application for license,authorizing use of 9 mCi Cs-137 & Am-241:Be in Troxler Model 3401B surface moisture density gauge to measure properties of const matl. (9 page(s), 2/4/1983)