1、_ flIL-T-51252A 66 7797706 01LiO228 O M MI-T-51252A( MU) 18 December 13cx SUPERSEDING MIL-T-51252 (MU) 7 December 1966 MILITARY SPECIFICATION TESTING KIT, IMPREGNITE IN CLOTHING, ABC-M2 1. SCOPE 1.1 This specification covers one type of testing kit for use in qualitative determinations of impregnite
2、 in clothing. 2. APPLICABLE DOCUMENTS 2.1 Government documents, -I_- The following documents of the issue in effect b date of invitation for bids or request for proposal, form a part of this specification to the extent specified hereiri: SPECIFICATIOXS FEDERAL PPP-B -6 21 PPP-B-6 36 FTP-c-343 MILITA
3、RY STANDARDS MILITARY MIL-STD-105 Boxes, Wood, Nailed and Lock-Corner. Box, Fiberboard. Cushioning Materil, Cellulosic. Pallets, Material Handling, Hardwood, Stringer Construction, Ir-way (Partid). Sampling Procedures an Tables for InsFection i4hrking for Shi?nent and Sorage. Palletized ana Containe
4、rize3 ?;ni+, 293s. by Attributes. THIS DOCUMENT CONTAINS g PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I NIL-T-51252A 66 W 7977906 0240227 2 MIL-T-51252A (MU) DRAWINGS US ARMY MNITIONS COI4“D DL5-77-236 - Testing Kit, Impremite in Clothing
5、, ABC-N2. (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directecl by tie contracting officer.) 3. FEQUIREIENTS 3.1 Materials and - components. -. 3.1.1 - Xa
6、terials. AL1 materials cited on Drawing DL5-77-236 or on the subsidiary drawings shall conform to the specifications listed tnereon or to the specific characteristics set forth on the drawings, 3.1.2 Components. Al1 components of the kit shall conform to the speci- fications- and drawings listed on
7、Drawing D15-77-236 and subsioiary drawinqs . 3.2 -I_- Ymufacture and assembly. -_- The kit shall be manufactured and assembled as specified on Drawing C5-77-23. 3.3 Vial fillinq. The glass vials snail be filled with one of the apoli- cable solutions as specified ifi table 1, c 2 . - - . I Provided b
8、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-5L252A 66 9999906 OLL10230 9 (ip 150 - i52OC; refrac- tive index at 20C - 1.4303 + 0.0005) Chlorobenzene (bp 130 - -132OC refractive inaex at 2OoC - 1.5244 + 0.0005) Ethylene glycol mono- methyl ether (bp 1
9、20 - 125C refractive index at Table I. Vial Pillinq Label 5870 or e qual East- hite Label 70 or eaual Eastman Practical Grade P2361 or e qual Ingredients i Specification National Aniline Division Allied I Chen 10+2 - - I .1 20% - 1.4023 + 0.0005) - It i I * Tne amount of rhoddne 3 base used shall pr
10、ovide concentrations equivalent to 2.70 + 0.13 gran! (g) of the standard rhodaine B for jackets and trousers aad 1.35-2 0.07 g of the standard rhodamine B for gloves and socks. 3.3.1 Azpoules. Each ampoule shall be filled with 0.05 + 0.01 g of 2:l water: acid solution by weight using distilled water
11、 and ACS reagent psde Sycrochloric acid uhen tested as specifie in 4.3.4.3. 3.4 Preproduction. Prior to the start of regular production; a ore- sample of testing kits shall be produced for examination an test in accordance with 4.2. 3.5 Workmauship. The kit shall be free from defects (broken or crac
12、ked vial or goule and torn or broken box) and foreign matter (grease, oil and dirt) vhich would affect its suitability .for the intended use. 4. QUALITY ASSURAPICE P3OVISIO2TS. 4.1 Responsibility for inspection. I 4.1.1 Suppliers responsibility. Unless otherwise specified in the contract or purchase
13、 order, the supplier is responsible for the perfomance of all inspec- tion requirements as specified herein. Except as otherwise specified, the supplier 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-51252A bb M 777770b 0140231 O 9 KI L-T -5
14、 12 5 2A ( ) may utilize his own facilities or any comercial laboratorj acceptzle to the Government. inspections set forth in the specification where such im-ectionc are deened necessary to assure supolies and services confom to specified reqire3ents. The Governent reserves the right to perfom E-J o
15、f the 4.1.2 Objective evidence. The supplier shall provide objective evidence - I accpetable to tie contracting officer t+at the reqilirenents of 3.1, 3.2 and section 5 for which specific inspection has not been provided in this specificatior, have been satisfied. 4.2 - Preproduction. 4.2.1 Sample.
16、A preproduction smple of 10 testing kits shall be mnu- factured using the same materials, equipment and processes as will be used during regular production. 4.2.2 Inspection. The sample kits shall be exaained in accorhnce with the classification of defects (4.3.3.3) and tested as specified in 4.3.4.
17、 ply with the examination and tests specified in 4.2.2 to be acceotable. 4.2.3 Acceptance/rejection criteria. The preproduction sample shall con- 4.3 Regular production. - 4.3.1 Lottinq. A lot shall consist of the kits produced by one manufac- However, no more than one lot of reagents shall turer, a
18、t one plant, fronthe same materials under essentially the same manufacturing conditions. be represented in any one lot of finished testing kits. 4.2.2 Sampling. 4.3.2.1 For examination. Sampling shall be conducted in accordance with MIL-STD-105 4.3.2.2 For test. Five testing kits shall be taken at r
19、andom from each lot for the tests specified in 4.3.4. 4.3.3 Inspection. 4.3.3.1 For examination. The sample kits shall be examined in accordance with the classification of defects and MILSTD-105. 4.3.3.2 For test. The sample kits shall be tested in accordance with 4.3.4. lot represented by the sampl
20、e shall be rejected. If any of the sample kits fail to pass any of the test specified, the 4 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-53252A bb m 777770b 0340232 2 m MIL-T-51252A( MU) 4.3.3.3 Classification of efects, Testing kit, impr
21、emite in clothing, ABC-= (Dwa 5-77-236). Cat e gor i e s Defects -.- Critical : None defined / Major : AQ,L 1 .O percent defective 101 i02 103 i04 Component missing or incorrect Tape not wrapped securely around cap and Separator missing or incorrect Marking on box or bottles missing, in- Workmanship
22、 (see 3.5) neck of vial correct or illegible 4.3.4 Tests. Tests shall be conducted 8s follows: 4.3.4.1 Rhodamine B. (a) Preparation of the standard. Using a Government fur- nished standard Fapie of rhodamine B (see 6.3) accurately prepare five solutions in the range of 1.25 to 3 g of dye per 100 g o
23、f solvent (solvent is a 60/30/10 parts by weight mixture of N, N-dimethyl forma- mide, chlorobenzene, and ethylene glycol monomethyl ether) . Take 10 milliliter (mi) samples of-each soltuion and dilute with a constant volume of solvent mixture. For this dilution use a 50/49/1 parts by volume of isop
24、ropanol, distilled, water, and 28-percent ammonium hy- droxide solution (see Note 1 below). tometer at a wave length of 553 mp to determined absorbance. necessitated Dy the type of instrument employed, the fluorescence deviations in the test should be minimized by the proper location of the sample i
25、n the instrument, per 100 g of solvent in the known solutions. Run the sample in a spectropho- If Plot absorbance versus grams of dye NOTE 1 A dilution of 1:10,000 is satisfactory for absorbance measurements on an instrument of comparable quality to a Beckman D. U. Spectrophotometer. tested and dilu
26、te in the same manner as in (a) above (same dilution and diluent). of 553 9 to determine absorbance. 100 g of solvent in the unknown using the standard calibration curve. (b) Procedure. Take 10 ml samples of the solutions to be Run the sample in the spectrophotometer at a wave length Detemine the gr
27、am of dye per 5 c . . ._ . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-51252A( MU) I 4.3.4.2 Solvent dtermination (see 6.4). Determine the quantity of the three solvents in the mixture using gas chromatography. Use a column of sufficient
28、size and length and packing impregnated with material which will . effectively separate the three solvents with respect to time of elution. Using a 60/3O/iO parts by weight mixture of N, N-dimethyl formmi.de, chloro- benzene, ethylene glycol monomethyl ether, determine sample size required in the ch
29、romatographic instrument to give optimum readings on the recorder chart. of the three solvents (these areas are read directly from the chart). Using the optimum sample size (determined above) of the solution to be tested, run the sample through the chromatography apparatus. Determine the percent by
30、weight of each component by reading the quantity of component from stan- dard curves for the areas obtained in the test. Prepare standard curves of integrated area versus quantity for each 4.3.4.3 Ampoules, Place an ampoule in an Erlenmeyer flask and break am- poule. point with 0.01N sodium hydroxid
31、e (NaOH). drochloric acid (“21) as follows: Add 25 ml water, phenolphthalein indicator, and titrzite to end Calculate the grams of 2:l hy- Grams of 2:l HC1 = ml NaOH x normality of NaOH x 0.30 5. PREPARTION FOR DELIVERY 5.1 Packing. 5.1.1 Level A. Sixty testing kits shall be packed and cushioned in
32、either a wooden box conforming to class 2, style 4-1/2, type 2 box of PPP-B-621 or a fiberboard box conforming to style RSC, grade V3c , type 2 (average load) box of PPP-B-636. Cushioning material conforming to type II, class A or B, of PPP-C-843 shall be used to prevent movement of the kits within
33、the box. The wooden box shall be closed in accordance with the applicable require- ments specified in the appendix to PPP-B-621. “he fiberboard box shall be closed in accordance with the requirements for closure by taping class weather resistant, style RSC boxes to be shipped as exterior containers,
34、 as specified in the appendix to PPP-B-636. The wooden box shall be reinforced by galvanized steel strapping in accordance with the reinforcing require- ments in PPP-B-621; and the fiberboard box shall be reinforced by tape banding. 5.1.2 Level C. The testing kits shall be packed as specified in 5.1
35、.1 except that the fiberboard box shall be type CF, class donestic, grade 175 of PPP-B-636. 5.2 Marking. In addition to any special marking required in the contract or order , shipping containers shall be marked in accordance with ZIL-SiID-129. 6 Provided by IHSNot for ResaleNo reproduction or netwo
36、rking permitted without license from IHS-,-,-MIL-T-53252A 66 7799706 0340234 b H 5.3 Palletization. When specified in the contract or order (see 6.2) shipping containers of 5.1 shall be palletized on a 40 by 48 inch pal- let of NCL-P-3,038 in accordance with the applicable requirements of XIL-STD-14
37、7. 6.1 - Intended use. The kit covered by this specification is intended for use in qualitatively determining whether impregnated clothing con- taines the required amount of impregnite necessary for protection. . 6.2 Ordering data. FYocurement documents should specify the following: (a) (b) Level of
38、 packing required. (c) Palletization required. (d) Preproduction. Title, number and date of this specification. If level A, the type box required. (1) (2) (3) Time allowed for supplier submission of sample for Name and address of test facility and shipping instruc- Time allowed for the Government to
39、 notify the supolier Government test and evaluation after award of contract. - tion when testing is performed by the Government. whether or not to proceed with production. 6.3 Standard samples-. Standard samples for use in determining the rhodamine B content in accordance with 4.3.4.1 may be obtaine
40、d from Commanding Officer , Edgewood Arsenal, ATTN : Arsenal, Maryland 21010. SMUEA-QAIC , Edgewood 6.4 Solvent deternnation. The following procedure has been suc- cessfully utilized to separate the solvents: Method - Gas chromatography using Fisher-Gulf Partitioner Model i60 (1) Column: Copper tubi
41、ng l/k-inch diameter - 6 feet long. (2) (3) Substrate: (a) Dioctylphthalate, 35 g per 100 g of Column packing: Columnpak 30 to 60 mesh - distributed by Fisher Scientific Company. Columnpals. Company, 15 g per 100 g of Columnpak. (b) Lac 3R728 supplied by Cambridge Industries (4) The substrates were
42、put on the Columnpak separately from acetone solutions. The excess acetone was boiled off on a stem bath. Three feet of the column were packed with dioctylphthalate substrate and three feet of the column were packed with Lac 3R728. 7 . . - . . - - . . c Provided by IHSNot for ResaleNo reproduction o
43、r networking permitted without license from IHS-,-,-MIL-T-51252A 66 = 7777706 01LI0235 B I (5) a. Flash evaporator temperature 17OoC. b. Oven temperature 120 Oc. c. d. Carrier gas helium e. Sample size 0.015 ml f. Sensitivity used 15 .O g. Time of elution, minutes Chlorobenzene 6. O Ethylene glycol
44、monomethyl ether 12.5 Dimethylformamide 21.5 Flow rate of carrier gas (60 ml/sec at 20 lb pressure (6) The sample was applied to the chrmoatograph with a pipette sampler. 6.5 Caution. The solvents used in the manufacture of ABC42 testing kits are flammable and toxic. Caution should be exercised in t
45、he handling and mixing of the solvents. 6.6 International interest. Certain provisions of this specification are the subject of international standardization agreement (see Serial No. 19, Supplement B to Quadripartite Standardization List Sheet Report). amendment, revision or cancellation of the spe
46、cification is proposed which will affect or violate the international agreement concerned, the pre- paring activity will take appropriate reconciliation action through international standardization channels including departmental standardiza- tion offices, if required. When Custodian : Preparing activity : internationa interest (see section 6) Project No, 6630-0120 8 c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
