Accredited Standards Committee *	X3, Information Technology

NEWS RELEASE

Doc. No.:	PR/96-069
Reply to:	Lynn Barra at lbarra@itic.nw.dc.us 


X3 Announces the Public Comment Period for 
X3.63:1981, Interchangeable Magnetic Twelve-Disk Pack (100 Megabytes)
X3.84:1981, Interchangeable Magnetic Twelve-Disk Pack (200 Megabytes) 

** Submitted For Withdrawal **

Washington D.C., September 1996 - Accredited Standards Committee 
X3, Information Technology is announcing the public comment period for 
the withdrawal of two ANSI Standards, X3.63:1981 and X3.84:1981.  The public 
reviews extend from October 11, 1996 to December 10, 1996.

ANSI X3.63:1981 specifies the general, physical and magnetic requirements for 
interchangeability of the magnetic twelve-disk pack, as required to achieve 
unrecorded pack interchange between disk storage's and associated information 
processing systems.  The twelve-disk pack, with nineteen (19) recording 
surfaces and one (1) prerecorded servo surface, is of the type intended 
specifically for use with digital recording and reproducing equipments 
employing access mechanisms capable of positioning to four hundred and for 
(404) useable data tracks on each of the disk surfaces.  The requirements for 
seven (7) additional track areas on each recording surface are identified for use 
as alternates in case of difficulty in reading or recording on any useable data 
track.

ANSI X3.84:1981 specifies the general, physical, and magnetic requirements to 
ensure interchangeability of the twelve-disk pack as required to achieve 
unrecorded pack interchange between disk storage's and associated information 
processing systems.

In accordance with ANSI procedures, which require a five-year review of its 
approved standards, these two standards were recommended for withdrawal
by X3/OMC as both refers to out-of-date technology and conformance cannot be 
verified.

Submit all comments to:  X3 Secretariat, Attn.:  Lynn Barra, 1250 Eye Street, NW, 
Suite 200, Washington, DC  20005, Email:  lbarra@itic.nw.dc.us.

This standard can be purchased from ANSI, 11 West 42nd St., New York, NY 
10036. (212)642-4900.

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