ARMY MIL-T-13505-1954 THREAD SILK SEWING (FOR PROPELLANT BAGS)《(推进器)丝质缝纫线》.pdf

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1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-“I 3.2 Physical and chemical2xopertiee.- me thread shall conform to the physlcal and chornical. proprtiss specified hereunder, when teated in accordance witrh the cormspondfng teat procedure oontained i

2、n eection 4 of aia speaification. 3.2.1 Color.- The color of the thread aha11 be natural, !,2 Finish,- The thread ahall hava a eoft finish, Clam 2 - 550. I I 3.2.7 Elo.s,Ration, porcenii, maxlmwn,shal2 ba 81) follows: Class 1 - 2 Class 2 - 20, Provided by IHSNot for ResaleNo reproduction or networki

3、ng permitted without license from IHS-,-,-MIL-T- 13505 (Ora) 4.4.2 Yards per ounce.- Approxjmately 100 yaZ+dB of the ssmple ahall be accur6tsly measured, weighed, and calculated *to yarde per pnce. of five datexminations shall be reported. mination shnll be made on conditioned materjal (i.e., matsri

4、al which ia in equilibrium with an atmosphere having e relative humidity of 65 and. a tempereture of 700 to 800 F. The material shall be considered to be In equilibrium when it; ehowe no progressive change in weight in 24 hours.) 4.4.5 Breaking E,- The bresklng strength ahall be debmined an A .bs.t;

5、ing machine of the pendulum (inclinationlbalance) type, ohall have a maximum wing of 45 from the vertical. bs eo arranged 88 to permit determination of the elongation of the sample at the timo of rupture. be wound on round hoo the edge of the jaws or drums of the hating machine, The at-mage of 10 de

6、ter- minations shall be reported aa the breaking atrength of the sample. of dispute the detemination shall be made on conditioned. material (see 4.4.2). 4.4.4 Elongation.- %!he elongation ahall be determiy or alkalinity present eha21 be calculated to acetic acid or adium carbonate,respectlvely. pH d

7、etermination is exactly 7.0, the wehr extract shall be divided into two . equal portiona. , . ha average In case of dispute, the deter- 2 percelit The pendulum “he machine shall also A single strand of the ample, without knots,- shell In case The elongation OP “he avere)-;e of 10 determinetions shal

8、l In cem of disputa tbe determination shall be made on con- Them The pH of the liquid shall be determined 4,4;gb2 Organic acidity or alkalinity,- If the value of the water . If the pH salue of the wehr extract from the One portion shall be titrated with N/lO sodium hydroxide, I Provided by IHSNot fo

9、r ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T- 1359 (ordl . i* using phenolphthalein a0 an indicator, and the acid ecpivalent calculated to acetic acid. The other portion of %he water extract ehe11 be titrateher shell be poured through the condenser until it eip

10、hons over Into 8 weighed mceivts tie lot for inspection and acceptanoe. The lot; may be accepted provided that new samples, selected in accodance with 4.2, omply with all tihe reqummate epacified herein, and %at two addition61 samples pass any test or bata failed on original submission. . The flaak

11、shall be heated by mana of - 4,5 Besubmission and retest.- If the inspection testa ahow that the, 5. PREPARATION FOR DELIiBRY 5.1 Packagir&- The tairead shall be wound on cones) each holdag 1 to 2 5.2 Packinq.- The threaa cones shall be packed in boxes 80 constructed -5.3 Marking.- Each container sh

12、all be marked in accordance witb pouuds. The cones ehall be Individuqlly wrapped in tsaue paper or other sutabie cellulose sheeting. and closed as to ineure acceptance by common or other carriers for safe transportation, at, the loweat rate, to the point of delivery. Speoif ioation MIL-P-10029 * I a

13、. Title, number, and dab 61 this apealfi II a. Title, number, and dab 61 this apealfioaton+ L. b, Clase mquima (eea 2)i k 1. -* I- I. 1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-