1、2s -374 KIL -P-l2 o 5 9 ( cml c) 4 June 1952 . SUPERSEDING Av 96-111h71 - 9 November 1945 MILITARY SPECIFICATION POER, SULFURLESS XEAL Ir SCOPE 1.1 Scope.- This specification covers gunpowder designated as 1.2 Classification.- Sulfurless meal pawder shall be furnished in sulfurless meal powder for u
2、se in munitions. the following grades and classes, as speaified (see 6.1) : , Grade A - Unglazed. Grade B Glazed, Class 1 - Finely granulated. Class 2 - Coarse. 2 0 APPLICABLE SPECIFICAT fOMS, STilIlDAFtDS, DRAWIHGS, AND PUBLICAT IONS . 2.1 The following speoifications and standard, of the issue in
3、effect on date or invitation for bids, form a part of this specification: SPECIFICATIONS FEDJBLL RR-S-366 - Sieves; Standard, Testing. MILITARY JAN-P-156 - Potassium Nitrate. JAN-C-178 - Charcoal (For Use in Kunitions). NAVY DEPARTMENT General Specifications for Inpection of Material. STANDARDS MILI
4、TARY EIL-STD-129 Marking of Shipments. (Copies of specifications, standards, and drawings required by contrae- / tors in connection with speoific procurement functions should be obtained fromthe procuri,ng agency or as directed by the contracting officer.) f Provided by IHSNot for ResaleNo reproduct
5、ion or networking permitted without license from IHS-,-,-EIL-P42059( C6l.C) 2,2 ther publications,- .The follcwing publication; of the issue in 0ffec-b bn the dato of invitation for bids, unless otherwise stated, forms a part of this speaificafim: IilTERSTATE CO?fl.ERCE COIISS IO:! Regulations for T
6、ransportation of Grplosives and Other Dangerous (Applioation for oopies should be addressed to the. Superintendent df Artiolos, etc, Docwnents, Government Printing Offioe, Iiiashington 25, D. C.) 3 REQUIREI.EXL“T 3.1 Materials,- All materials used in the manufaoture of the powder shall conform to th
7、is specificationr . 3,2 Chemical,- The sulfurless meal powder shall conform to the chemical requirements shown in tablo I, Table I - Cliemioal requirements . . I : : Requirement . : I minus the moisture aontent (4.48) as representing the pctassiuin nitrah, (.It is recognized that this included any w
8、ater-soluble portion of the charcoal or sulfur.) of sulfur and oharcoal. Rotain the crucible and residue for determination 100 (A - B) - C .A Percent KNO3 - where: A U Veight of the specimen, in gm. B :Weight of the residuo, in gm. C = Percent moisturo of the specimen (4.4,8). 4.4.3 Sulfur.- Place t
9、he crucible, weighed for loss of water-soluble material (see04,2), in an oxtractor on a wrater bath, and extract for 1 hour with carbon diSulphide* once with alcohol and once with ether, using suction, and dry for 1 hour at 105 k 30Gg Aftor extraction, wash the crucible Calculate. percent sulfur fro
10、in tho loss in weight. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.charcoal, in gm. 4*4.4 Charcoal.- Consider the resiue in the crucible (4.4.3) to Calculate Retain the 3sidue for +termination of oarbon be oharcoal, Determine its weight by subtr
11、acting the tared weight of the crucible from the weight of the crucible and residue; as FercenC Charcoal. and ash. a 100 c Percent Charcoal: A where: A = Weight of Che specimen, in gm. C Weight of the charcoal, in gm, 4.4.5 Carbon and .ash.- Dry the charcoal residue (see 4.4.4) at 140 f. OC, in a cu
12、rrent of nitrogen (free from oxygen) and cool in a desiEcator. by combustion and absorption in the usual manner. Weigh the ash re= maining afhr combustion. - 4.4.6 Particle size.- .Select U. S. Standard sieves conforming to Specification RR1.s-366 for the class specified in 3.3, .Nest the sieves in
13、order of decreasing size, placing the largest mesh on top and a re- oeiving pan at the boktom. Weigh, to the nearest aenigram (ag.), approxiliiakely 25 gm. of the material and plaoe it-in the top sieve. Brush the material with a camels-hair blush through the smallest mesh that it will pass and calcu
14、late the percent retained on each sieve. Determine the carbon on a suitable portion of.the residue 4.4.7 1ioisture.- Veigh, to the nearest mg., approximately 2 gm. of Dry 2 the specimen into a tared.weighing dish or covered watch glass. hours in an oven at 100 .F 2OC. and calculate the perceder. Wei
15、gh the residue and examine visually for conformance to 3.4.4. 100 A B. Percent residue I where: A = Reight of the residue, in gm. B = PJeight of the specimen, in gm. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-L2059 bB p%q990b OlLbLZb L1 -
16、6 IL-P-12059( CmLC) 4.4.9 Pe1leting.t Thoroughly dry approximately 10 gm. of the pavder * in an oven at 70 5 l0C to a constant weight and then condition to a moisture content of 1.75 1: 0.05 sercont. cornpress 0,4 gm. of the conditionod powder, vreighod to the nearest mg., inta a disk 0,50 inch in d
17、iamster under a dead load pressure of 1,000 poitnds, maintcined for 15 seconds. Remove-the pellet from the mold and ce!i-t;or over a onvlty of Om40-inch dianister, By means of a instal rod, O.B5-inch thick, cutperpendiculur to the line of axis at the end, apply prassure to the conter of tho pellet a
18、nd note tho load required to brunk the pellet. . By means of a suitable mcld, The average of three tests shall conform to 3.4.5, 4,$.lO Specific gravity.- Transfer, approximately 10 gmr of specimen, weighed to the nearest mg., to a 50-ii11. specific grav5ty bottle which has been one-hulf to bvo-thir
19、ds filled witnining mercury. noion until the bott-le is filled with msrcury. lcigh the bottle con- taining tho powder and mercury at 20 f 0,3*C. filhdwith mercur at 20 t 0.3C. Calculate the specific gravity of tho powder at 20 20%. as-follows: Displace the Con- Repeat this Oper- Reigh the same bottl
20、e 13.55 x A 7 Specific gravity at oO/ZOC. 2 K whore: k = Weight of specimen, in gm. B Keight of Bottle .filled with mercury, in gm. C R Veight of .bottle filled with mercury and specinen,in gm, 4,4,ll Finishr- Visually inspect the material for compliance with 4.5 Rejection and resubmission.- If any
21、specimon fails to conform to this specification, the lot shall be rejected. The contractor, at no expense to the Government, shall have the option of having an analysis mada on each container in the lot, removing the nonconforming material, and. resubmieting the remaining portion of the lot for acce
22、ptance test- ing, fails to oonform to this specification, the lof shall be finally re- jcctodr - 3,6,2, If any specimen taken from the resubmitted portion of the lot -_ - - I_ a _ - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-h41LP-12059( cmlc) :
23、 5, PREPAWTIaN FOR DELIVERY 5.1 Packaging.- 25 f 1 pounds of the materfa1 shall be package lai a 4-ounce cotton duck bag; 1-1/2 pounds of the material shall be pack- aged in metal kegs conforming to. Specification 13 of the Interskate Comer-ce Codssion Regulations for Transportation. of Explosives a
24、nd Other Dangerous Articles, etc. or in fiber or metal containers; or the material shall be packaged in cylindrical fiber cartriges not over 5 inches in diameter nor over 18 inches in longth with the fiber paraffined at least 0,05 inches on the and the fact that the Goverment may hava formulated, fu
25、rnishod, or in any way suppliod tho said drawings, specifications, or other data is nat to be rogardod by implication or othwwiso as in any manner licensing the holder or any othor porson or corporation, or conveying any righm or permission to manufacturo, USO, or sell any patented invention that may in any way be rolat.ed theretor Custodian : Other intorost : Army - Chornical Corps Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
