1、MIL-P-2658 b W 7777706 01230611 T = - - 31 Januw 1977 Superseding (see section 6) I4IIXTAHY SPECIFICATICN This specification is approved for use by the Naval Sea Systems Cormand, Departnient of the Navy and is available for use by allbpartmnts and Agencies of the kpart?rent of Defense. 1. SCOPE . 1.
2、1 Scope. This specification covers one type of carboxy tenninated polybutadiene liquid polymer referred to herein as “the material“. 2.1 Issues of docurnab. The follming docurrients of the issue in effect on date of invitation for bids or request for proposal, fonn a - part of this specification to
3、the extent s i3prov-t Propsal (DD Fom 1426) appearing at the end of this docunient or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82658 68 7777906 OL230b5 L . MuiP-82638 (OS) Z-MEUcAN SOCIETY FOR TESTING AND MATERIATS (ASTM) Asrl
4、M D 70-72 Specific Gravity of Semi-solid Bitu- minous Materials (Application for wies should be addressed to the Arrierican Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) COIIE OF FEDENUL IIEGuLATiaS 49 (=FR 100-199 Transportatian (The code of Federal Wgulations is ava
5、ilable frm the Superintendent of mix, U.S. Governnient Printing Office, Washington, DC 20402. rders should specify “49 CER 100-199 (latest revisiCai)“) NAlJ?ICNAL MJKIR FIIEIGlXC TRAFFIC ASSOCIATICN, INC., AGENT National mtor Freight Classif ication (Application for copies should be addressed to Ame
6、rican Truckhg Tariff Order Sedon, 1616 P Street, Washington, Associations, Attn: DC 20036. ) IRsp Ho. 368 Formulas for Denatured Aloahol and Ihrm (Application for cipies should be addressed to the Superintendent of Doc=unients, Government Printing Office, Washington, DC 20402. should cite IRSP No. 3
7、68, ment revision.) Orders mmm cLAsSIl?ICATIcN ccwITIIEE, AGEN!r Vnifonn Freight Classification fication Ccirrnittee, ban 1106, 222 South Riverside Plaza, Qiicago, U 60606.) standards are generally available for reference frm libraries. are distributed mg technical groups and using Federal agencies.
8、) (Application for cipies should be addressed to the niform Classi- (Technical society and technical association specificatim and They 3.1 Material. The material shall be an opaque mker color, viscous, carboxy terminated polybutadiene liquid polymr containing a n b. Apparatus: 1. 2. Graduated cylind
9、er, 100 ml. mthanol to the reaction vessel. with dilute Karl Fischer reagent by autcmatidly titrating to a 30 s endpoint using the Aqumster. Carefully add 0.09 to 0.11 g of sodium tartrate, weighed to the nearest 0.1 nq, to the neutralized mthanol. in the mthanol by setting the stirring action to th
10、e highest speed which will not cause splashing or bubble formation. Autmatically titrate with dilute Karl Fischer reagent to a 30 s endpoint. Record the volunie of dilute Karl Fischer reagent. determinations agree within 0.05 mg/d. Aquamater, BeclaMn Model KF-4, or equivalent. c. Standardization of
11、Karl Fischer reagent: Add 100 ml of Neutralize the methanol Dissolve the sodium tartrate Repeat the standardization procedure until three 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-2658 b I 999390b 0439230 7 = MIIrP-82658 (OS) d. Caldate
12、 the water equivalent of the dilute Karl Fischer reagent as followc: A = 156.6B C where : 156 A = water equivalent of the dilute Karl Fischer B = wight of sodium tartrate, g C = volume of dilute Karl Fischer reagent used 6 = factor for sodium tartrate water content =agent, mg/ if Set the Make the pl
13、pr solution up to final velum and shake thoroughly. Fill the 1500 p sample cell. Fil1 the reference cell with the same stock carbon disulfide used to make the solution. Make a ccanplete speckrun of the 1500 p swle cell with reference cell in the beam. Nomial operating conditions may be used although
14、 a slm scanning speed may be used if desirable. If the transmission at the band maximum of either the 10.35 or 11.0 p band is less than 20%, it will be necessary to scan the sample in the 500 p cell. 5. .- bkasuremnt of spectra. trans and vinyl bands at the band maxima. lines as sham in Figure 1. Fo
15、r the 10.35 mband, the baseline is tangent to the transmissicm maxima at about 10.2 and 10.7 p. For the 11.0 pband the baseline is tangent to the transmission maxima at about 10.7 and 11.2 w. Calculate the absorbance, A, as follms: Measure all absorbances for the Draw the base- A = log lo - log 1 wh
16、ere 1, and 1 are measured as sliuwn on Figure 1. MQke v this masurenent as accurately as possible. ruled scale such as K ; . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82658 68 999Ob OL2307b b W MIL-P-82658 (CS) d. Calculations: - 1. calcu
17、late the trans and vinyl cancentrations as follaws: 100 A Percent unsaturation = - abc where: A = measured absorbance a = absorptivity as detennind under calibration b = cell thickness, cm c = plpr concentration, g/1 2. Calculate the cis concentration frm the relation: % cis = 100 - (T + V) where: T
18、 = % trans v = % vinyl NOTE: calculation but the final result should be reported only to the nearest O. 1 percent. Four significant figures my be carried in the . e. Calibration: Calibration is acccqlished using as secondary standards samples of Cis-4 polybutadiene which have been analyzed according
19、 to the caplete procedure in Analytical Chemistry, 31, 529 (1959), and which therefore have hm trans and vinyl concen- trations. If the short method is to be used with the sare instmmnt on which the ccpnplete method has been calibrated, no additional spectra are necessary. used, the samples selected
20、 as calibration standards will have to be masured on it also. near the sm th as the samples for the caplete method and in the sm cells. to purify the samples and to prepare new solutions. masure baseline absorbances at 10.35 and 11.0 LKII on the spectra . of the secondary standards, as described in
21、procedure c. calculate the absorptivities for trans and vinyl as follaws: If a different instrument is to be Preferably, they should be measured If this is not possible it will be necessary 100 A a=- bcd where: a = absorptivity to be detennined A = appropriate baseline absorbance b = cell thidmess,
22、an c = poipr concintration, d = % concentrz.tion of the masurd as detennined 9-11 unsaturation type king by the ccanplete method 13 rj L Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-P-82658 (Os) Several plymrs should be used as secondary sta
23、ndards. average absorptivity for each tupe of unsaturation is then substituted in the equation given under calculations. general, low mlecular weight olefins cannot be used for cali- bration because the absorptivities so determined will be lower than those appropriate for polybutadiene. This will le
24、ad to high trans and vinyl concentrations and consequently lm cis concatrations . 4.6 Packaging inspection. The packaging, packing and marking shall The in be inspected to verify aonfomce with the requirements of section 5. 5. PACKAGING 5.1 Packaging and packing. nless otherwise specified in the con
25、tract (see 6.2), packaging and packing shall be level C. 5.1.1 =vel C. nless otherwise specified in the contract (see 6.2), packaging and packing of the liquid polymer shall be in accordance with standard ccmwrcial practice applicable to the type of material. The packaging and packing shall be of su
26、ch construction and materials that the contents will be adequately protected against loss or contanha- tion. Container:size chal1 be as specified in the contract ororder. (see 6.2). National mtor Freight Classification or to rules of other carriers applicable to the de of transportation and shall be
27、 suitable for indoor storage at 32OC (90OF) maxirmnn. Containers shall confonn to niform Freight Classification, 5.2 Marking. in addition to any special =king required by the contract or order (see 6.2) , each container shall be marked in accordance with MIIrSTP129 and Code of Federal Fkgulations 49
28、 171-179. Marking shall include, but not be limited to, the following infomiation: Title, number and date of this specification a. b. Manufacturers name and location c. =terial trade name d. Net weight e. at nmr, batch nirmber (s) , and date of mufacture -. f. storage coiditions g. -Contract or puch
29、asing order ncrmber h. Shelf life (see 6.3) 6. NOTES tion is intended for use as an ingredient in a solid propellant for the CCU-22/A impulse cartridge and other cartridge devices. 6.1 Intended use. Liquid plynier in accordance with this specifica- 6.2 Ordering data. Procurerrent docuwnts should spe
30、cify the following: 6.2.1 Procwcenaint requirements. 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIGP-82658 (OS) %- a. b. d. e. f. g. h. C. Title, numter and date of this specification Quantity required Pla of delivery Incpection conditions wh
31、en other than as specified (see 4.2) i& size if other than as specified (see 4.3.1) Packaging requirenwts if other than as specified (see 5.1) Size of container required (see 5.1) Any special markings required (see 5.2) 6.2.2 Contract data requirements. Items of deliverable data required by this spe
32、cification are cited in the following paragaph herein: Paragraph Data Requi remnt Applicable DID* 4.4 Quality conformance - inspection data *DIDS (Data Item kscripticn/bD Form 1664) for the above requirmts will be dccmented in the applicable ADL (Authorized Data List). (numbered) DIDS when specified
33、 an DD Form 1423 (Contract Data Requirements Lists) and incorprated into applicable contracts. Such data will be delivered as identified on ccrrrpleted 6.3 Shelf life. 6 mnths, when stored under nod warehouse conditions. that has exceeded this shelf life should be retested to the requirements of thi
34、s specification prior to use. The naninal shelf life of this material is Polym 6.4 mts of this specification in past procurenient actions is Suggested source of cupp ly. Aproduct that has mt the kxlymer 434 with AO-2246,manufactured by Thiokol Chefnical Corporation. This infonnaticn is for the Conve
35、nience of the procuring activiw and is not to be construed as a waiver of any requirarrint of this cpecificatim nor as any limitation of additional potential sours of cupply. 6.5 Supersession information. MLGP-82658 is intended to be used in lieu of AS 3057 (Ccde Ident 30003) data 6 Decgnber 1974 for Naval sea system carniand procurement. custodian: Navy - OS Preparing Activity: Navy - 06 Project Number: 6810-NA32 U. 8. GWERNYENT PRINTING OFFI& W77-70%0/1929 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
