ARMY JAN-M-454 (1)-1952 MAGNESIUM-ALUMINUM ALLOY POWDERED《镁铝合金 粉末》.pdf

1、JAN-M-454 AMENDMEST-1 15 FEBRUARY 1952 MILITARY SPECIFICATION MAGNESIUM-ALUMINUM ALLOY, POWDERED This amendmen forms a pnrt of Militnry Speeificnfion JAN-”464, 21 Fehrunry 1947, nnd was npprowd by the De- Irnrtments of the .4rnly, the Navy. nnd the 4ir Forre for u8e of the procurement services of th

2、e respectwe DepartmentR. Puge 1, section A: Delete and substitnte : “A. APPLICABLE SPECIFICATIONS, STANDARDS, DRAW- “A-l. The following specifications and stnndards, of the issue in effect on date of invitation for bids, form R part of this specifica- tion : INGS, AND PUBLICATIONS SlECIFIC.4TIONS FE

3、DERAL MILITARY RR-S-3G6-Sieves: Standard, Testing. hIIGC-2.?60-Gmeral Specification for Ammunition Exctpt Small Arms Amnlunition. NAVY DEPAHTMEXT STANDARDS General Specifications for Inspection of Blaterial. MILITARY MILSTD-l-%”arking of Shipments. tractors in connection with specifir procurement fu

4、nctions should he obtained (Copies of Rp2i6CRtiOnS stnndnrds, and drawings rewired hy Con- from the procuring agency or ns directed by the contracting officer.) “A-2 Ofho. pwblicntiotw-The following publication, of the is- sue in effect on date of invitation for bids, form a part of this specifi- ca

5、tion : INTERSTATE COMMERCE CObfbfISSlOX REGULATIONS Regulations for the Transportation of Explosives :lnd Other (Application for copies should he at1dre;Tsed to the 1nterst:lte Com- “G2 Type A powtier shall be grannlnr and shall contain no “E3. Apparmt demity (tllpe .4 polrdrr ottlv).-The apparent d

6、ensity of type A powder shall he not less than 0.80 grams pcr cubic Pagr 3, prcrngraph F-Sa, lirm 1 rind 2; Delete “U.S. A;fny SpeciticatioIl centimeter, when defermined ris specified in P-4m.” 50-0-1” and substitute “Specification h1IL-G-25%. Dangerous Articles, etc. merce Commission, Washington 25

7、, D. C.) Pngc 1, section c: Add : Page 8, sectim E: Add : slivers, chips, or machine turnings.” F.“- . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 Paga 7, section. F: “F4m Apparent dctz8ifg.-Assenll)le a Scott Volumeter as shown in figure 1. Pl

8、ace a number 80 U. S. Standard sieve, conforming Specification RR-S-366, in the hopper. Place a tared receiving cuhe, having an inner volume of 1 cuhic inch, directly under the funnel of the apparatus. Pour slowly 15 ta 20 grams of the powder (type A) into fhe hopper ant1 brush, if necessary, until

9、the cube is filled to overtlowing. Strike off the excess powder from the cube Weigh the tnhe and its contents. Calculate the apparent density with a spatula, taking care not ta jar the ruhe during this operation. of the powder by dividing the weight (in grams) of the powder by the volume (in cubic c

10、entimeters) on the cube. Make 3 separate cleterminations on each sanlple, nnd calculate the mean apparent density wlue of the powder. “G4 Mfr.k)1.-In addition to any special marking required by the procuring agency, shipping containers shdl he marked in accord- ance with Standard MILSTD-129.“ Pciw 8

11、, pa7anrcrph G-2: Delete and substitute. Page 8, parwraplrs H-4, H-5, H-G, alla H-7: Delete. Paye 8: Add attached figure 1. Custodian: Other interest: Army-Ordnsnce Corps Navy-Or. JAN-M-484 P. /“- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-v 3 -. - U. s. GOVERNMENT PRINTING OFFICE : 1952 O - - I r k Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-