1、20 September 1978 SUPERSEDING MIL-T-17412B (SHIPS) 20 August 1973 (See 6.4) MILITARY SPECIFICATION TEST KIT, WATER, ENGINE COOLING SYSTEMS (METRIC) This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencie
2、s of the Department of Defense. 1. SCOPE 1.1 This specification covers a test kit suitable for determining chromate and chloride ion content, and pH value of engine cooling water. 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents, of the issue in effect on date of invitation f
3、or bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL PPP-B-636 - Boxesr Shipping, Fiberboard. MIL-P-116 - Preservation-Packaging, Methods of. MILITARY STANDARDS M I LI TARY MIL-STD-105 - Sampling Procedures and Tables for Inspectio
4、n by Attributes. MIL-STD-129 - Marking For Shipment and Storage. (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the contracting activity or as directed by the contracting officer.) the
5、 extent-ified herein. invitation for bids or request for proposal shall apply. 2.2 Other ublications. The following documents from a part of this specification to Unless otherwise indicated, the issue in effect on date of UNIFORM CLASSIFICATION COl.IMITTEE Uniform Freight Classification Ratings, Rul
6、es, and Regulations. (Application for copies should be addressed to the Uniform Classification Committee Agent, G F Carl, Tarriff Publications Officer, Room 1106, 222 South Riverside Plaza, Chicago, Illinois 60606.) NATIONAL MOTOR FWIGHT TRAFFIC ASSOCIATION, INCORPORATED, AGENT National Motor Freigh
7、t Classification Rules (Application for copies should be addressed to the National Motor Freight Traffic Association, Incorporated, Agent, 1616 P Street, N.W. , V7ashington, QC 20036.) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving
8、 this document should be addressed to: Commander, Naval Ship Engineering Center, SEC 6124, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 6630 -? w- - Provid
9、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-T-L71.1L2C 66 W 7799906 03271.152 5 m DOD-T-17412C (SH) AMERICAN CHEMICAL SOCIETY PUBLICATION REAGENT CHEHICALS ACS Specifications (Application or copies should be addressed to the American Chemical Socie
10、ty, (Technical society and technical association specifications and standards are generally 1155 16th Street, N.W., Washington, DC 20006.) available for references from libraries. and using Federal Agencies, ) They are also distributed among technical groups NATION% BUREAU OF STANDARDS NBSIR 74-761
11、- Calibration of Small Volumetric Laboratory Glassware. (Application for copies should be addressed to the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.) 3. REQUIREr*ENTS 3.1 General. The testing kit shall be suitable for determining chroinate and chloride ion c
12、oncentrations, and pH values of engine cooling water. The kit shall consist of a durable case containing in a convenient, compact manner a comparator with color standards for chromate and pH determinations, dropper bottle containing pH indicator, bottle of chloride test tablets, sampling tube and ru
13、bber stoppers, funnel, and filter paper. 3.1.1 Recovered materials. Unless otherwise specified herein, all equipment, materials and articles incorporated in the products covered by this specification shall be new and shall be fabricated using materials produced from recovered materials to the maximu
14、m extent practicable without jeopardizing the intended use. The term “recovered materials means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. None of the above shall be interpreted to mean th
15、at the use of used or rebuilt products is allowed under this specification, unless otherwise specifically specified. 3.2 Case. The case shall be fabricated of wood, plastic, or metal, and shall be provided wma hinged fitted cover and a positive fastener which securely fastens the cover to the case.
16、The case shall be approximately 100 mm by 100 mm by 200 mm in size, The case shall rest securely on a flat surface. for pH andxmatePdeterminations, situated on either side of a sample viewing cell. The solid transparent standards shall be fabricated of sheets of colored transparent material. The com
17、parator may be a separate unit or an integral part of the case, and the viewing cell may be a separate unit or an integral part of the comparator. The comparator, if separate from the case, shall resist upsetting or tipping. The maximum and minimum color standards for the pH determination shall repr
18、esent limits of 8.25 t 0.25 and 9.75 + 0.25 pH units when tested as specified in 4.8.1. determination shall represent limits of 700 +_ 100 and 1700 $- 200 parts per million (p/m) chromate ion (Cr0;) when tested as specified as shown on figure 1. 3.3 Color com arator. The color comparator shall inclu
19、de minima and maxima standards The maximum and minimum color standards for the chromate in 4.8.2. The design and dimensions shall be 3.4 Viewin The viewing cell, whether a separate unit or integral part of the comparatordsa maximum viewing path of 19 mm, or less. When the test kit has separate sampl
20、e tubes for use in the viewing cell, a total of three such tubes shall be provided to allow for breakage, 25 milliliters (mL) of pH indicator solution. The bottle shall be made of an amber tinting or low actinic glass, suitable for protecting the light sensitive solution. A liter (L) (1000 mL) of in
21、dicator solution shall contain 0,1575 grams (9) of ACS grade phenolphthalein (C20H1604)I 0.0100 g of the purest reagent grade cresol red (C21H1805S) and 0.2625 g of ACS grade thymol blue (C27H3005S). The indicator dyes shall be weighed accurately and diluted with 525 mL of pure 95 percent (190 proof
22、) elthyl alcohol (C2H50H). A 1 Normal (1N) potas- sium hydroxide solution shall be added dropwise until the color is green or blue. The in- dicator solution shall be mixed thoroughly and allowed to stand until all the dyes are completely dissolved. The indicator solution shall be diluted to 1 L with
23、 distilled water. The indicator solution shall then be adjusted to a green color by adding 1N potassium hydroxide dropwise if the solution is yellow, or 1N hydrochloric acid dropwise, if the solution is blue. When tested in accordance with 4.8.3, the indicator shall produce a color change from yello
24、w to purple at approximately 8.0 pH value and purple to distinct purple at approximately 9.7 pH value. 2 3.5 indicator. The test kit shall contain one bottle with dropper cap containing . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-tested as spec
25、ified in- 4.8.4. 3.7 Samplin tube and rubber Sto er The test kit shall be provided with a plastic or glass samPrZngtGaramr st0Eper. 3.7.1 Sampling tube. The sampling tube shall be sufficiently stable on a flat surface to minimize tipping andhall have a single graduation line to indicate a delivery v
26、olume of 50 f. 1 mL. 3.7.1.1 Sampling accuracy. When tested as specified in 4.8.5, the tube shall contain 50 f. 1 mL. 3.7.2 Rubber Sto per. The rubber stopper shall be of a size suitable to securely stopper the Vng tEbe. 3.8 Funnel and filter paper. The test kit shall contain a plastic or glass funn
27、el of about 50 millimeter(mm) diameter and 100 125-mm diameter fine filter papers (42 Whatman, or equal) in a container. 3.9 Instruction for use. Complete instructions for use shall be durably affixed to the case, preferably onthensi.de cover, or enclosed within the case and shall be either printed
28、with waterproof ink on waterproof material, or shall be protected from damage by water by means of a transparent film or coating. The instructions shall include the follow- ing information. “INSTRUCTIONS FOR USE “GENERAL: “The tests for chromate, pH, and chloride should be conducted using the compac
29、t- test kit provided for this purpose. shipboard personnel to conduct the necessary control tests quickly. The kit contains all the equipment and chemicals necessary to conduct the chromate, pH and chloride tests. The tests for chromate and pH are of the color comparison type in which the color of t
30、he test sample is compared with the color of two solid transparent discs representing the specified maximum and minimum limits. The chloride test is of a different type an is so designed that the chloride concentration is determined by noting the color and condition of the sample after the addition
31、of a chloride test table. This test kit has been specifically designed to enable “PROCEDURES “1. Sampling of Cooling Water. Allow water to flush from the drain cock for several seconds before collecting a sample. Cool the sample to at least 80F before test. If suspended material is present in the sa
32、mple, it must be removed by filtering sample. Filtering is necessary since the suspended material may interfere with the colorimetric tests. “2. Filtering of the Water Sample. When suspended matter is present in the sample of cooling water, the sample should be filtered before test. To do this, fold
33、 a circular filter paper in half and then fold in half again. Open the folded filter paper so as to form a cone. Place the cone in the funnel provided in the kit. Wet the paper with distilled water and press it to the funnel. Carefully pour the sample water on the filter paper in the funnel and then
34、ce into a transparent glass bottle or beaker. Do not allow the level of the water in the funnel to reach the upper edge of the paper. This will prevent the water and suspended matter from passing between the paper and funnel. “3, Chromate Concentration. a. Fill a test tube with cooling water sample
35、and place in the center b. Hold the comparator to a suitable light source (see note following position in the comparator. instructions). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-T-27422C bb m 977740b 0329454 7 6 DOD-T-17412C (SH) c. If the
36、 color through the sample is between the color of the discs marked 700-1700, the chromate concentration is satisfactory. Be careful to note the color rather than the intensity of color. darkness or lightness o the colors: rather, determine whether the sample is yellower or bluer than the color disc
37、standards. d. If the color is bluer (bluish-green) than the color disc marked 700, the chromate content is low, e. If the color is yellower (yellow-green) than the color disc marked 1700, the chromate content is high. High chromate content is not harmful but wasteful. Do not compare the “4. pH Test.
38、 a. b. Add fifteen drops of pH indicator to one test tube, shake, and place in Fill.three test tubes to the mark with cooling water sample. center position in comparator. Place the other two test tubes in the remaining positions of the comparator. c. d. e. If the color is yellower (yellowish-green)
39、than the color disc marked f. If the color is bluer (bluish-green) than the color disc marked 9.75, the “5. Chloride Concentration. It is necessary that the sample to be tested contain chromate and be alkaline in order to conduct the chloride test. The chloride test, therefore, should be run after t
40、he chromate and pII have been determined to assure the proper conditions. Should it be desirable to perform the chloride test before adjusting the chromate content and pH, the sample must have the characteristic yellow color of chromate. Hold the comparator to a suitable light source (see note follo
41、wing in- If the color through the sample is between the color discs marked 8.25 structions) . and 9.75, the pH is satisfactory. 8.25, the pH is low. pH is high. a. b. Add one chloride test tablet, stopper and shake until completely dis- c. If the sample develops a brick red color, the chloride conte
42、nt is below d. If the sample becomes a cloudy yellow-green, the chloride content is high. Fill the cylindrical sample bottle to the 50 milliliter mark with cooling water sample. solved. the safe maximum limit. NOTE: Use only natural daylight or a daylight fluorescent lamp. 9G 6240-427-7448 covers an
43、 8 watt 12 inch daylight fluorescent lamp suit- able for this purpose. Do not use incandescent lighting or other light . source as the results will be erroneous. When tests are made, the tester should be held up to the brightest part of the sky, but about 30 degrees from the sun. Avoid strong light
44、on the observers side of the tester as reflections will make the necessary comparisons difficult. If possible, the observer and comparator should be in a shadow.“ Stock Number NSN 3.10 Workmanshi . The test kits shall have no missing, broken or damaged parts and shall be free from sharp edges which
45、might be injurious to using personnel. case shall be uniform and free from scratches. The finish of 4. QUALITY ASSURANCE PROVISIONS 4.1 Res onsibilit for ins ection. Unless otherwise specified in the contract, the contractor isPresDonsib?eefr the Performance of all insDection requirements as specifi
46、ed herein. 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 are deemed necessary to assure
47、 supplies and services conform to prescribed requirements. Except ai otherwise specified in the contract, ;he contractor may use his own or 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: (a) First Article inspection (see 4.3) (b) Quality Con
48、formance inspection (see 4.4) 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. First Article and quality conformance inspection. Test Requirement Test paragraph paragraph Vi sua1 examination 4.5 Alkalinity 3.3 4.8.1 Chromate 3.3 4.8.2 pH in
49、dicator 3.5 4.8.3 Chloride 3.6 4.8.4 Accuracy 3.7.1.1 4.8.5 (sampling tube) First ar ticle inspection Quality Conformance inspection Test Inspection Level (MIL- (See 4.4.2) STD-105) X s-2 X s-2 X s-1 X s-2 X 5-2 I 4.4 Quality conformance inspection. 4.4.1 Inspection lot. kits to be delivered at one time. 4.4.2 Sam lin for visual examination. A random sample of campleted test kits shall be selected from eazhlt-cordance with inspection level II of MIL-STD-105 with an AQL level for major and minor
