1、3 c-7s- 18 . c- MIL-I-81971A 66 m 9999906 0143832 8 MIL-I-81971A(AS) 9 September 1988 SUPERSEDING This specification is approved for use within the Naval Air Systems Command, Department of the Navy, and is avail- able for use by all Departments and Agencies of-the Department of Defense. MIL-I-81971(
2、AS) 5 April 1974 MILITARY SPECIFICATION INK, REACTANT 1. SCOPE 1.1 Scope. This specification establishes the requirements for one type of reactant ink. 2. APPLICABLE DOCUMENTS. 2.1 Government documents. * 2.1.1 Specifications and standards. The following specifications and standards form a part of t
3、his specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS Federal BB-N-41
4、1 Ni trogen, Techni cal * DD-8-585 Bottles and Jars, Glass, Prescription * MMM-A-180 Adhesives, Polyvinyl Acetate Emulsion Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Systems Engineering and
5、 Standardization Department (Code 53211, Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 6630 Distribution Statement A. Approved for publi
6、c release, distribution is unlimited. -, THIS DOCUMENT CONTAINS 9 PAGES- 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS Mi 1 i tary MIL-E-52171 Ethylene Oxide, Technical STANDARDS Federal F ED-STD-5 9 5 Col ors MI 1 i tary MI L-STD-
7、105 Sampling Procedures and Tables for Inspection by Attributes Marking for Shipment and Storage MIL-STD-129 * (Copies of specifications and standards required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the cont
8、racting activity,) * 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless
9、otherwise specified, the issues of documents not listed in the DODISS shall be the issue of the nongovernment documents which is current on the date of the solici tation. MUNSELL COLOR COMPANY 2.5R Chart Glossy Book of Color (Application for copies of color chips should be addressed to Munsell Color
10、 Company, Inc., 2441 North Calvert Street, Baltimore, MD 21218.) AMERICAN SOC1 ETY FOR TESTING AND MATERIALS ASTM D 3951 Packaging, Commercial (Appllcation for copies should be addressed to American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) * (Nongovernment standa
11、rds and other pub1 ications are normally avai lable from the organizations which prepare or which distribute the documents. documents also may be available in or through libraries or other informational services.) These 2 -= Provided by IHSNot for ResaleNo reproduction or networking permitted withou
12、t license from IHS-,-,-I I MIL-I-BL771A hb 777770b 0143834 L W * 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specificat
13、ion shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS * 3.1 First article. When specified (see 6.21, a sample shall be subjected to first article inspection (see 6.3) in accord
14、ance with 4.3. 3.2 Preparation. The ink shall be prepared as specified in 3.2.1 through 3.2.2. 3.2.1 Ingredients. 3.2.1.1 Reagent grade alcohol. The alcohol mixture shall consist of 95 5 2 percent (by volume) of ethyl alcohol denatured with 5 2 1 percent (by volume) of isopropyl alcohol. The residue
15、 after evaporation shall be less than 0.001 percent by weight. 3.2.1.2 Benzene. Analytical reagent grade shall not have impurities exceeding the limits specified in Table I. TABLE I. Maximum Impuritiesin Analytical Grade Benzene. Impur i ty I Percent (by weight) I I Water Sulfur compounds T h i op h
16、ene Residue after evaporation o. 0200 O. 0050 O. 0005 0.0010 - I I I 3.2.1.3 Indicator. The indicator shall be 1,8 Dihydroxyanthraquinone (Chrysazin) having a melting point between 192C and 194C (378F to 381F). 3.2.1 .4 Magnesi um brorni de hexahydrate. The chemi cal shall be crystal purified grade
17、or better, with the compound consisting of small, colorless, odorless, crystals.not exceeding 118 inch in two dimensions (length excluded). Do not use if a HBr, Br2, or C12 odor is detected. amount used for a given ink lot on a clean glass pan and dry in a circulating oven at 70 Spread the 5C (158 5
18、 9F) for 3 5 1 hours prior to using. c * 3.2.1.5 Adhesive. The adhesive shall conform to the requirements of MMM-A-180, Class- B. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2.2 Procedure (a) The atmosphere in which the ink sha shall be acid
19、and alkaline free (pH (b) Dissolve 50 i: 1 grams MgBr2.6H20 in liters of reagent alcohol. (cl Dissolve 75 5 1 milligrams (mg) of anthraquine (chrysazin) in 20 5 1 m 1 be prepared of 6 2 1). 100 5 2 milli- ,8-Dihydroxy- lliliters benzene. (d) Pour solution from (c) into solution from (b) and shake un
20、til mixed and measure resultant volume tb the nearest mi 11 i 1 i ter (e) To each 115 2 1 milliliters of the solution in (d) add 69 2 1 milliliters adhesive. Shake thoroughly until a homogenous yellow emulsion is obtained. Store in a clean airtight amber glass bottle (con- forming to DD-B-585, Type
21、II, Style 1, Color Amber, except that cover liner shall be aluminum faced), CAUTION: Filled bottles shall be kept tightly closed at all times except when ink is being removed. during preparation. Also, do not use any method involving heat - NOTE: However, the given tolerance of each measurement rema
22、ins the same. All mixing and reagents shall be at 22.2 r. l.lC (72 i: 2F). Ink may be made in multiples of amounts specified in 3.2. 3.3 Performance. 3.3.1 Color fastness. When tested in accordance with 4.6.1 the color of the sample shall be as yellow as, and no more pink than color 23613 of FED-STD
23、-595. 3.3.2 Color change. When tested in accordance with 4.6.2 the color of the sample shall change from an opaque yellow to a standard red 7/6 to 6/8 as described in Munsell Color Standard, Chart 2.5R. 3.4 Storage life. The ink shall be stored in accordance with 3.2.2(e) and 3.5 Workmanship, shall
24、be used within 90 days of preparation. liquid, free of lumps, of any separated solids, or evidence of,phase separation. The ink, when examined visually, shall be a homogenous 4, QUALITY ASSURANCE PROVISIONS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
25、-,-,-c MIL-I-8L97LA 66 m 7777706 014383b 5 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase
26、order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections
27、are deemed necessary to assure supplies and services conform to prescribed requirements. * 4.1.1 Responsibility for compliance. All items must meet all requirements of Sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or
28、 quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance
29、does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3
30、). b. Quality conformance inspection (see 4.4). * 4.3 First article inspection. The first article inspection of the ink shall consist of a visual inspection (4.5.1) and a performance test (4.5.2). * 4.3.1 First article samples. Unless otherwise specified, as soon as practicable after the award of th
31、e contract or order, the contractor shall submit three test samples prepared in accordance with 4.3.1.1 from each of five 250 milliliter bottles of ink prepared in accordance with 3.2. The samples shall be representative of the components, materials and workmanship to be used during production. When
32、 a contractor is in continuous production of the ink from contract to contract, submission of further first article inspection samples on the new contract may be waived at the discretion of the acquiring activity (see 6.2.1). Approval of the first article inspection samples or the waiving of the fir
33、st article inspection does not waive the requirements of performing the quality conformance inspection. The first article inspection samples shall be furnished to the Government as directed by the contracting officer (6.2.1). The first article inspection sample shall be identified by securely attach
34、ed tags or labels durably marked with the following information: Sample for First Article Inspection I NK , REACTANT Name of manufacturer Name of distributor (if applicable) Product designation (manufacturers) Date of manufacture Submitted by (name) (date) for first article inspection in accordance
35、with the requirements Of MIL-I-81971A(AS). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-L97LA 66 9999906 0343837 7 9 MIL-I-81971A(AS) 4.3.1.1 Preparation of test samples. The test samples shall be prepared as follows in an atmosphere havi
36、ng a pH of 6 2 1: (a) Filter paper for the test samples shall be either Whatman number 42, Schleicher and Schuell number 589, Munktill number OOH, or equivalent approved by the procuring activity. (b) The paper shall be cut into disks 1.312 tO.000 inchand -0.060 inch diameter. tc) Apply a uniform co
37、ating of 55 2 20 mg to each sample disk. Coating weight shall be determined after the sample has been dried in 6 percent relative humidity for a minimum of 24 hours. Place the coated disks in sealed clear gas bottles and hold for not less than 7 days. (d) CAUTION: Materials (such as free of any basi
38、c or acid ou (e) Examine the disks * 4.3.2 Test report. Two cop complete test data for the end appl i cable paragraphs, shall be sample. gaskets) used to seal bottles shall be gassing properties. for color in accordance with 3.3.1. es of the contractors test report, containing tem and referring spec
39、ifically to the submitted with the first article inspection 4.4 Quality conformance inspection. The quality conformance inspection shall be performed on five test samples from each lot of ink prepared and tested in accordance with 4.3.1.1 and tested in accordance with 4.5 through 4.6, A lot is defin
40、ed as a lot of ink prepared in accordance with 3.2.2 from unacceptable if a sample fails to meet any one of the test requirements specified. . one lot of each ingredient as defined in MIL-STD-105. A lot shall be * 4.4.1 Inspection conditions. Unless otherwise specified, all inspections shall be perf
41、ormed in accordance with the test conditions specified. 4.5 Inspection methods. 4.5.1 Visual inspection. The test samples prepared in accordance with 4.3.1.1 shall be placed in closed clear bottles (see 3.2.2(e) and stored for 7 days at 22.1 atmosphere that was in the test sample preparation area at
42、 the time of the sample preparation. l.lC (72 2 2F). The atmosphere in the bottles shall be the 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i =ir MIL-1-8197LA 66 9999906 0143838 9 W MIL-I-81971A(AS 4.5.2 Performance test. The test samples prepa
43、red in accordance with 4.3.1.1 shall be tested as follows: (a Verify that all test equipment is calibrated before beginning the test. Testing should be done in an environment having a pH of 6 Place samples in a room with 6 percent maximum re1 ative humi di ty. 1. (b) (c) Clean test vessel by immersi
44、on for a minimum of 5 Minutes in hot tap water and then in deionized or distilled water. Rinse the inner surfaces success- ively with analytical reagent grade dioxane, chloro- form, and ethanol. (230 +_ 9F) for 112 hour minimum and cool to room temperature. Dry in an oven at 110 5 5C NOTE: Each test
45、 vessel shall be such that the ratio of the volume of the test vessel (in liters) to the total surface area of the samples (in square inches) shall be a minimum of 1.5. The test vessel shall have provisions for purging, for inserting the samples, for injection of measured amounts of ethylene oxide,
46、and for viewing the test samples as required for detection of color change. (d) Purge vessel for a minimum of 5 minutes in dry ni trogen conforming to BB-N-411 (less than 1 percent relative humidity). Place the open test vessel in the 6 percent maximum relative humidity atmosphere for a minimum of 1
47、2 hours. (e) Insure that the samples have been in the relative humidity atmosphere for a minimum of 12 hours. (f) Place the samples in the empty test vessel and slide cover into position. (g) Add distilled water as necessary to obtain relative humidity between 14 and 18 percent. (h) Allow vessel wit
48、h test samples to stabilize for at least 24 hours. Test relative humidity of atmosphere inside test vessel and adjust as necessary to obtain relative humidity between 14 and 18 percent. (i) Purge the fuel line with ethylene oxide conforming to MIL-E-52171 and connect to test vessel. Draw a partial v
49、acuum to 3 percent of ambient atmos- pheric pressure (in mm of mercury) 5 0.3mrn on the test vessel. Inject sufficient ethylene oxide to obtain a 2.3 +_ 0.1 percent concentration (by volume). The injected stream of gas shall not strike the test samples. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-P n (k) Analyze the test atmosphere for ethylene oxide con- centrat
