1、NIL-D-SLI9LI 68 9997906 0323627 6 MIL-D-85494(AS) : 6 October 1981 p- 7G7q MI LI TARY SPEC1 FI CATI ON DIOCTYL ADIPATE This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defens
2、e. 1. SCOPE. 1.1 Scope. This specification establishes the requirements for one type of dioctyl adipate. 2. APPL I CABLE DOCUMENTS. 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this specification to the
3、extent specified herein. STAN DARDS M I L I TARY MIL-STD-129 Marking for Shipment and Storage. (Copies of specifications, standards, drawings, and publications re- quired by suppliers in connection with specified procurement functions should be obtained from the procuring activity or as directed by
4、the contracting officer.) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Comnanding Officer, Naval Air Engineering Center, Engineering Specification and Standards Department (ESSD) , Code 93, L
5、akehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. THIS DOCUMENT CONTAINS PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-85494
6、 (AS) percent Acidity, percent as acetic acid 3. REQUIREMENTS. 3.1 Product characteristics. The dioctyl adipate covered by this 3.2 Chemical and- physical properties. Chemical and physical prop- 1 specification shall be a clear liquid. erties of the dioctyl adipate shall conform to Table I. - 0.10 -
7、 0.01 3.3 Stabilit . When stored in the temperature range of 5 to 32 degrees Celsuis + OC , the dioctyl adipate shall meet the requirements of this specification for 18 months from time of receipt. extended for 12-month intervals after reacceptance testing for conformance to the moisture requirement
8、s of Table I. The shelf life may be Assay, percent Specific gravity, 25/250C 3.4 Toxic products and safety. Safety regulations and guidelines applicable to the use of dioctyl adipate should be complied with to preclude personal injury and damage to equipment and facilities. - 99. o o* 921 O. 927 3.5
9、 Workmanship. Workmanship shall be such that the dioctyl adipate is uniform, of consistent high quality and free from visible contamination. TABLE I. Chemical and physical properties. t Property Min I Max I 4. QUALITY ASSURANCE PROVISIONS. 4.1 Responsibility for inspection. Unless otherwise specifie
10、d in the contract or purchase order (see 6.2.1 ) , the contractor shall be responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the contractor may utilize his own facilities or any commercial laboratory acceptable to the Government. The G
11、overnment reserves the right to perform any of the inspections set forth in this specification. where such inspections are deemed necessary to assure that suppl ies and services conform to prescribed requirements. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
12、 from IHS-,-,-MIL-D-85LI94 68 m 7977906 0223627 T MIL-D-85494( AS) 4.2 Sampling. The lot shall be sampled in accordance with Table II. TABLE II. Sampling plan. in lot 100 or more 51 - 99 I Number of containers sampl ed (primary sampl e) Number. of . composite samples 10% (nearest who1 e number) 10 1
13、0 ALL 4.2.1 Primar Sam les. Physical properties tests shall be run on each primary -7 sample see Table II). The material ,container may be sampled by use of a clean glass tube, rod, or pipet. is small enough to be handled safely, the sample may be obtained by pouring. The smallest sample size possib
14、le that is consistent with test requirements shall be taken. The minimum sample size shall be two ounces. Glass containers shall be used for all liquid samples. Each sample shall be labled with date, lot number, and manufacturers con- - If the container tainer identification number. Failure of any p
15、rimary sample to pass all of the physical-properties tests herein shall result in rejection of the lot represented. 4.2.2 Composite samples. Chemical properties tests shall be run on each composite sample. number of composites shown in Table II. by manipulation of the container. Label each composite
16、 with Roman numerals, also include date, lot numbers, and manufacturers container identification numbers. The remainder of the primary samples shall be retained pending acceptance or rejection of the lot. Failure of any composite sample to pass all of the chemical-properties tests herein shall resul
17、t in rejection of the lot represented. Divide the primary samples equally into the Blend each composite thoroughly 4.3 Qual i ty conformance inspections and tests. Qual i ty conformance inspections and tests shall consist of the folloding: , 3 - fl . i Provided by IHSNot for ResaleNo reproduction or
18、 networking permitted without license from IHS-,-,-MIL-D-85979 68 7793706 0323630 6 W 1 a. b. c. Visual inspection (see 4.5.2). Tests of Table I properties (see 4.4). Inspection of filled containers (see 4.5.1). 4.4 Test methods. Tests shall be performed using apparatus, reagents, and procedures spe
19、cified herein. or procedures shall require prior written approval of the procuring activity. The use of alternate apparatus, reagents, 4.4.1 Moisture. 4.4.1 .l Apparatus. Beckman “Aquameter“, Model KF-4, or equal. 4.4.1.2 Reagents. a. b. Pyridine-methanol solution, 3:l by volume. Karl Fisher (KF) re
20、agent, stabilized, water equivalent of 2.0 to 3. O mil 1 igrams/mill i 1 i ter (mg/ml ) . Neutralize the water in a 100 ml To the reaction vessel add 4.4.1.3 Determination of moisture. portion of the pyridine-methanol solution. approximately 20.0 to 25.0 grams (gm) of sample weighed by difference to
21、 the nearest 0.01 gm and stir. to the 30 second end point. Titrate automatically with KF reagent Cal cul at i on : VE Percent moisture = 10 Where: Y = volume of KF reagent, ml E = water equivalent of KF reagent, mg/ml W = weight of sample, g Report the moisture to the nearest 0.001 percent 4.4.2 Aci
22、dity. 4.4.2.1 Apparatus. a. b. Micro buret, 10-ml Magnetic stirrer with Teflon-coated stirring bars. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-85474 68 = 977970b OL23b3L 8 . MIL-D-85494 (AS) 4.4.2.2 Reagents. a. Benzene-methanol solution,
23、 3:l by volume b. Standard sodium methylate solution, 0.1 Normal (14). c. Phenolphthalein solution, 1 percent phenolphthalein in ethanol. 4.4.2.3 Determination. Weigh approximately 100 gm of sample to the nearest 0.01 gm into a 400-ml beaker. After placing a magnetic stirring bar into the beaker and
24、 adding 100 ml of the benzene-methanol solution, stir the mixture on the magnetic stirrer until the sample dissolves. titrate with the standard sodium methylate solution to a faint pink col or. Add 4 drops of phenolphthalein indicator solution and Calcul ation: V x N x 6.005 Percent acidity as aceti
25、c acid = W Where: V = volume of standard sodium methylate, ml N = normality of standard sodium methylate W = weight of sample, g Report the acidity to the nearest 0.001 percent. NOTE: The normality must be corrected for any change between the temperature at standardization and the temperature at whi
26、ch the sample was titrated. are insignificant. Changes less than 1C 4.4.3 Assay. 4.4.3.1 Apparatus. Reflux condenser. 4.4.3.2 Reagents. a. Alcoholic potassium hydroxide solution, 0.5 N. b. c. Standard hydrochloric acid solution, 0.5 N. Phenolphthalein solution, 1 percent phenolphthalein in ethanol.
27、d. Isopropanol -water solution, 63 percent isopropanol. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-85Ll7Ll 68 W 7777706 0123632 T W MIL-D-85494 (AS) 4.4.3.3 Determination. Weigh approximately 1.5 gm of sample to the 1 nearest 0.0001 gm i
28、nto a 250-ml Erylenmeyer flask. Pipet 25 ml of alcoholic potassium hydroxide solution and 50 ml of isopropanol-water solution into the sample flask. for 0.5 hour. After cooling, wash the condenser with distilled water, add phenolphthalein indicator solution and titrate with standard 0.5 N hydrochlor
29、ic acid solution until one drop causes disappearance of the pink color. Prepare a blank. Reflux on a hot plate Cal cul at i on : B - V) x N x 18,528 W Percent dioctyl adipate = -( Where: B = volume of standard HC1 solution required to titrate blank, ml sample, ml V = volunie of standard HC N = norma
30、lity of standard W = weight of sample, gm solution requ HC1 solution red to titrate Report the assay to the nearest 0.01 percent. 4.4.4 Specific gravity. 4.4.4.1 Apparatus. Westphal balance equipped with a plummetwith a sealed-in thermometer, or equal. 4.4.4.2 Determination of specific gravity. Susp
31、end the plummet from Completely immerse the arm of the balance and zero the balance in air. the plummet and adjust the temperature of the sample in the measuring cylinder to 23C. Stir the sample and record the balance reading when the plummet thermometer reaches 25C. distilled water and determine at
32、 25C. Repeat the procedure using Cal cul ation: - Balance reading obtained with sample Specific gravity - Balance reading obtained with water 25“/25“C Report the specific gravity to the nearest 0.001 unit. 4.5 Examinations. 4.5.1 Inspection of filled containers. All filled containers shall be inspec
33、ted prior to shipment or use for accuracy or markings and for defects in containers and closures. Al 1 defective containers and closures shall be repaired or replaced, and contents therein shall be reinspected prior to shipment or use. I 6 .Y- I Provided by IHSNot for ResaleNo reproduction or networ
34、king permitted without license from IHS-,-,-flIL-D-85Ll94 68 m 7979906 0323633 L m MI L-D-85494 (AS) 4.5.2 Visual inspection. All samples shall be visually inspected to determine conformance to the requirements of 3.5. 4.6 Records. Certification and test data shall be prepared as required 5. PACKAGI
35、NG. by the procuring activity (see 6.2.2). 5.1 Packaging and packing. Unless otherwise sp.ecified in the contract or purchase order (see 6.2.11, packaging and packing of the dioctyl adipate shall be in accordance with comercial practice to insure carrier acceptance and shall be of s.uch construction
36、 and materials that the contents will be adequately protected against loss or contamination. 5.2 Container marking. Unless otherwise specified in the contract or purchase order (see 6.2.1), each shipping container shall be marked in accordance with the requirements of MIL-STD-129. shall include the
37、following: Container marking a. The suppliers lot number. b. Procuring activity purchase order number. c. Container identification number (applied in numerical sequence as the containers are filled). d. Date of manfacture. e. Manufacturers Code Ident. f. Net and tare weight of the container. g . Ma
38、teria1 identification. 6. NOTES AND CONCLUDING MATERIAL. 6.1 Intended use. The intended use of the material described herein is as an ingredient in solid propellant formulations. 6.2 Ordering data. 6.2.1 Procurement requirements. Procurement documents should specify the fol lowing: a. Title, number,
39、 and date of this specification. b. Responsibility for inspection and inspection facilities if different than 4.1. c. Special packaging, packing, or shipping requirements, if applicable (see Section 5). 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
40、-,- MIL-D-5474 68 m 9999906 0323634 3 m - MIL-D-85494( AS) - 6.2.2 Data requirements. When this specification is used in a procurement which incorporates a Contracts Data Requirements List (DD Form 1423) and invokes the provisions of 7-104.9(n) of the Defense Acquisition Regulations (DAR) , the data
41、 requirements identified below will be developed as specified by an approved Data Item Description (DID) (DD Form 1664) and delivered in accordance with the approved DD Form 1423 incorporates into the contract. When the provisions of DAR 7-104.9(n) are not invoked, the data specified below will be d
42、elivered by the contractor in accordance with the contract requirements. data required by this specification fs cited in the following paragraphs: . Deliverable Paragraph Data Requirement Applicable DID 4.6 Certification UDI-A-23264B Test Data DI -T-4024 (Copies of DIDs required by the contractor in
43、 connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 6.3 Definitions. 6.3.1 - Lot. At place of manufacture, a lot consists of dioctyl adipate from one manufacturers batch or blend, or if manufactured by a continuou
44、s process, any quantity of material made from homogeneous raw materials and during a period of uninterrupted operations. a lot consists of dioctyl adipate from one manufacturers lot received in a single shipment. shipment at the option of the procuring activity. At place of delivery, Partial shipmen
45、ts may be considered a single 6.4 Suggested source of supply. A product that has met the require- ments of this specification in past procurement actions is marketed by Union Camp Corporation, Code Ident Number 33522. This infrmation is for the convenience of the procuring activity and is not to be
46、construed as a waiver of any requirement of this specification nor as any limi- tation of additional potential sources of supply. , Preparing activity: Navy - AS (Project 681 0-NB23) *US. GOVERNMENT PRINTING OFFICE: 1981-505-022/8511 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
