1、 Mn;-Z-399D Amendment 1 5 April 1973 :J MILITARY SPEC PICA TION ZIRCONIUM (GRANULAR AND POWDERED) This amendment forms a part of Military Specification MIL-Z-3WD dated ments and Agencies of the Department of Defense. 1 October 1971 , anc is mandatory for use by ali Depart- Table II. Add an additiona
2、l class as follows: Class 4 Thru No. 120 sieve (125 microns), . Thru No. 200 sieve (74 microns), Thru Buckbee Mears No. 26 sieve, percent by weight percent by weight - (20 microns) percent by weight 100 99 min. 96 min. Subsieve Less than 9 microns, percent by weight 3 microns, percent by weight 0.75
3、 microns, percent by weight 85 min. 33100 20 max. Average particle size, microns Surface area (B.E.T.) i.i-i.60 s uare meters per gram s see 6.6) Delete Table III and insert the following: FSC 6810 T THIS DOCUMENT CONTAINS A PAGES M i o Licensed by Information Handling ServicesMILG399D Amendment 1 d
4、 -rl E I E O H H -0000 OI O m d a _ 2 o Licensed by Information Handling ServicesMIGZ-399D Amendment 1 Page 11 Add a new paragraph as follows: “4.3.4. Surface area (B.E.T). This determination shall be performed as described in “Scientific and Industrial Glass Blowing and Laboratory Techniques“, Chap
5、ter XII, by W. E. mrr and V. J. Anhorn, Instrument Publishing Co., Pittsburgh 12, Pa. (1959) .“ Renumber the following paragraphs accordingly. Page 26 Add a new paragraph as follows: by a new process or purchased from a new manufacturer.“ 16.6 The surface area shall be run on zirconium powder manufa
6、ctured Renumber the following paragraphs. accordingly. Custodians: Navy - Qs Air Force - 68 Anily-Mu Review activities: Army - MD, Mu Navy - OS, AS Air Force - 68 Preparing activity: AFmy-MU Project No. 6810-0972 User activities: Army - MI, SM *US. GOVERNMENT PRIKTINC OFFICE: 1873-714-544/4855 3 Licensed by Information Handling Services
