ARMY MIL-T-48140 (1)-1974 TUNGSTEN POWDER (FOR PYROTECHNICS)《(烟火制造使用的)钨粉》.pdf

1、MIL-T-48140 (PA) .AMENDMENT 1 14 May 1974 MILITARY SPECIFICATION TUNGSTEN POWDER (FOR PYROTECHNICS) This Amendment forms a part of Military Specification MIL-T-48140(MU), dated 24 April 1973 and is approved for use by all Departments and Agencies of the Department of Defense. Delete llMU1 and substi

2、tute PA“ where applicable. Paragraph 1.2: After Type I, delete “as supplied“, and substitute llAgglomeratedll. Paragraph 3.1: Delete (“see 6.5) II Paragraph 3.2: Table I; Molybdenum, delete 110.040“ and substitute 110.06011 Nickel, delete “0.001“ and substitute ii0.00511 Below Table I: add “The sum

3、of the values of metallic impurities analyzed shall not exceed 0.1% on a gas free basis.“ Paragraph 3.4: a. Type I, Delete “4.2 + 0.5 microns“ and substitute b. Type TI, as supplied: Delete “4.2 + 0.6 microns“ and “4.5 - + 0.5 mTcrons.“ substitute “4.5 - + 0.5 microns“ c. Type II , lab milled: Delet

4、e “3.9 + 0.5 microns“ and substitute “4.2 + 0.6 microns“. - FSC: i376 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-=. , - . _I. .- . I MIL-T-48140 (PA) AMENDMENT 1 0-5 6 . 5-10 22 10-15 20 . 15-20 12 L.20-25 O 0-1 - 1-2 2-3 3- 4 4-5 5- 6 6- 7 7-25

5、 Y .- I Paragraph 3.5, Table II: Delete in its entirety and substitute: TABLE Ir . Particle Size Weight Percent distribution, microns Type I Type II Agglomerated De-Agglomerated As supplied As supplied Lab milled Min Max Min Max Min Max i8 35 25 25 3a + .O 2 O 5 1 5 1 11 5 14 10 20 10 20 15 27 11 23

6、 15 27 11 21 10 20 8 17 4 12 Balance Balance Paragraph 4.3: Add new paragraph: “4.3.3 Inspection Equipment. The government reserves the right to inspect the contractors equipment and determine that he has available and utilizes correctly, measuring and test equipment of the required accuracy and pre

7、cision and that the instruments are of the proper type and range to make measurements of the required accuracy. Commercial inspection equipment, shall be employed where applicable for all tests and examinations specified in 4.4. for assuring proper calibration procedures are followed. Government app

8、roval of all inspection equipment is required prior to its use for acceptance purpose,“ The contractor is responsibIe Paragraph 4.4.1, after last sentence: Add “(.see 6.5) -2 .- i. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-48140 (PA) AMEN

9、DMENT 1 Paragraph 4.4.2, after last sentence: Add “(see 6.5)“ Paragraph 4.4.5, second sentence: Delete “and oxygen content1. Paragraph 6.5: Delete in its entirety,and substitute: “6.5 Prior approval of the Contracting Officer is required for use of equivalent test methods. A description of the propo

10、sed method should be submitted through the Contracting Officer to: Commander, ATTN: SARPA-QA-A-P, Picatinny Arsenal, Dover, New Jersey 07801. This description should include but not be limited to the procedures used, the accuracy and precision of the method, test data to demonstrate the accuracy and precision and drawings of any special equipment required. Custodian: Preparing Activity: Project Number: 1376-AO26 Army-PA Army-PA * U. S GOVERNMENT PRINTINC OFFICE 1974 -713- 155/6282 3 I - -_ 1. t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-