ARMY MIL-I-60350 (2)-1982 INERT FILLERS FOR USE IN AMMUNITION《用于惰性弹药的填料》.pdf

1、* MIL-1-60350 (AR) AMENDMENT 2 1 February 1982 MILITARY SPECIFICATION INERT FILLERS FOR USE IN AMMUNITION This Amendment forms a part of Military Specification MIL-1-60350 (MU), dated 30 October 1965, and is approved for use by the US Army Armament Research and Development Cmmand, Department of the

2、Army and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 1.2, Classification: Add the following types of inert fillers: “Type IV - Pelron (polyurethane) inert filler (see 6.2, 6.13 and 6.14). Type V - A mixture of sand and steel punchings (see 6.2 and 6 -15)

3、 “ * 2-1 SPECIFICATIONS: Add the following Military Specifications: “MILITARY MIL-1-706 - Iron Oxide: Ferric, Red Dry MIL-G-20098- - Gypsum, Calcined. MIL-B-48177 - Barium Sulfate. MIL-C-48244 - Cellulose , Powdered MIL-G-48246 - Glyceryl Ester of 12 - MIL-G-48334 - Gypsum, Dead Burned Hydroxy Stear

4、ic Acid. * Delete the following : “PURCHASE DESCRIPTIONS (See 6.3) PA-PD-290 - Gypsum, Calcined“ FSC 1395 1 of 4 ,. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-60350 (AR) AMENDMENT 2 PAGE 2 * Delete the following: “PA-PD-656 - Iron Oxide, F

5、erric PA-PD-721 - Glyceride of Hydroxy PA-PD-722 - Gypsum, dead burned PA-PD-2765 - Cellulose, powdered PA-PD-2766 - Barium Sulfate“ Stearic acid 3.1.2, Types: Type II, Ferric Oxide, Add: “or Type I, Class 2“ Add the following: “Constituent - Material Conform i ng Parts by to Weiqht Prepolymer fract

6、ion Pelron Technical Bulletin 2012 21 Resin - Catalyst fraction Cons ti tuent Material Sand Steel punchings Pelron Technical Bulletin 2012 79 Conforming to (See 6.15) (See 6.15) Parts by Weiqht 50 50 PAGE 5 6.2, Add new subparagraphs as follows: 2 -4 I 5Pe IV Filler - Type IV filler is suitable for

7、a all applications. 6.2.5 Type V Filler shall be retained as a secondary inert filler for use at US Army proving grounds with limited application such as weapons proof testing and in other cases where interior ballistics (exclusive of maximum chamber pressures) and exterior ballistics are not of maj

8、or concern in test firings.“ 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* 6.3, PA-PD documents; 6 . 11, third sentence, 3283“ . MIL-1-60350 (AR) AMENDMENT 2 Delete paragraph 6.3 in its entirety. PAGE 6 change “Report No. 3276“ to “Report No, A

9、dd new paragraph: “6.13 TVPe IV filler - Type IV (Pelron Polyurethane) filler is formed by combining two materials (prepolymer and resin-catalyst fractions) at the mixing head of a dispensing machine. Within approximately one minute, chemical reaction causes the material to expand. Projectiles are p

10、laced on a scale under the dispensing nozzle and are filled until the total weight of the projectile and filler is correct. The material fills the projectile cavity to approximately 60% of its capacity. The inert fuze or projectile nose plug, or cavity mold, is then screwed securely in place. Chemic

11、al reaction expands the material to completely fill the cavity with a homogenous material that ensures correct density and center of gravity (see US Army Jefferson Proving Ground, Report No. MTD-1-5-75, June 1975) . The prepolymer and resin-catalyst fractions are produced by Pelron Corporation, loca

12、ted at 7847-W47 St. Lyons, IL 60534.“ Add new paragraph: “6.14 CAUTION NOTICE - During the formation of Pelron (polyurethane) filler, fumes containing toluene diisocyanate, which is considered toxic, are present at the dispensing nozzle. In addition, methylene chloride is used as a cleaning agent. T

13、herefore, during formation and loading of the Pelron filler, adequate ventilation must be provided and breathing of the vapor must be avoided. A hood type ventilation shall be situated over equipment where the vapors are exposed to the atmosphere. The ventilation system should maintain an air veloci

14、ty of at least 100 ft./min. past the worker. If air sampling discloses that the threshold limit value of toluene diisocyanate (.O2 ppm) is exceeded during the operation and further ventilation is not feasible, then employees must wear respiratory protective devices. Care must be taken to avoid conta

15、ct of the solvents with the eyes or skin. In case of contact with methylene chloride, immediately flush the affected area with plenty of water for at least 15 minutes. If the skin becomes contaminated with toluene diisocyanate, it should 3 Provided by IHSNot for ResaleNo reproduction or networking p

16、ermitted without license from IHS-,-,-MIL-1-60350 (AR) AMENDMENT 2 be immediately washed off with a solution of 5% aqueous ammonia mixed wih 10% isopropyl alcohol and then reported to a physician. In addition to these precautions, the provisions of AMCP385-112 for the “Hazard Anal.)sis of Polyuretha

17、ne Foams“ shall be adhered to.“ Add new paragraph: “6.15 Type V filler - Type V (sand and steel punching) inert filler consists of sand described as “Sand, Blast No. 12 Berkley, CRY, 18 Mesh, Grade No. 1, New Jersey, Silica Glass Type Sand or equal, No. 5350-DO-X04-7671“ and steel punching 1/16 to 1

18、/4“ thick with a 1“ diameter, The steel punching are covered with a slight coat of oil. A source of supply of the steel punching is “Coatesville Plate Washer Company, PO Box 127, Coatesville, Pennsylvania 19320“. The margins of this amendment are marked with an asterisk to indicate where changes (ad

19、ditions, modifications, corrections, deletions) from the previous amendment were made, This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document b

20、ased on the entire content irrespective of the marginal notations and relationship to the last previous amendment. Custodian: Army -AR Preparing activity: Army -AR (Project 1395-A223) *US. GOVERNMENT PRINTING OFFICE: 1982-505-02211042 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-