本规程规定了具有持续价值的音频磁记录的理想存储条件，因为在间歇复制或复制期间，音频磁记录可能会保留在图书馆或保险库中。定义了两类存储时间。这些类别与ANSI/NAPM IT9定义的类别一致。11-1993.中期储存条件:适合保存记录信息至少十年的储存条件。长期储存条件:适合保存具有永久价值的记录信息的储存条件。

This practice specifies the desirable storage conditions for audio magnetic recordings of continuing value, as they may remain in library or vault storage between periods of intermittent reproduction or duplication. Two categories of storage time are defined. The categories are in agreement with those defined by ANSI/NAPM IT9.11-1993.Medium-term storage conditions: Storage conditions suitable for the preservation of recorded information for a minimum of ten years.Extended-term storage conditions: Storage conditions suitable for the preservation of recorded information having permanent value.