FOIA deep study · declassified archive
Standard Recommended Practice for Measurement of Airborne Sound Insulation in Buildings
Declassified FOIA document: Standard Recommended Practice for Measurement of Airborne Sound….
Document number CIA-RDP96B01172R000800120001-1 declassified and released through the CIA's CREST database. Previously available only on four computers located outside of… Open the official PDF for the complete file.
Educational FOIA index entry. Always verify wording on the official primary PDF.