1、k- i3-a5 t MIL-T-2449LlB 68 7979706 0338755 3 9 i IINCH-POUND MIL-T-24494B(SH) 19 October 1988 SUPERSEDING 4 August 1981 (See 6.7) MIL-T-24494A(SH) MILITARY SPECIFICATION TETRA-, TRI-, AND DISODIUM SALTS OF ETHYLENEDIAMINETETEUACETIC ACID (EDTA) WATER TREATMENT CHEMICALS, BOILER, SHIPBOARD USE mis s
2、pecification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. , 1. SCOPE a 1.1 Scope. This specification covers three types of sodium salts of ethylenediaminetetraacetic acid (EDTA). 1
3、.2 Classification. EDTA shall be of the following types, as specified (see 6.2): TYPES Type I - Tetrasodium EDTA Type II - Trisodium EDTA Type III - Disodium EDTA 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standard. The following specifications and standard form a par
4、t of this document to the extent specified herein. otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). Unless Beneficial comments (rec
5、ommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposa
6、l (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 6810 DISTRIBUTION STATEMENT A. Approved for Dubiic release: distribution is unlimited. THIS DOCUFNT CONTAINS /o PAGES. / - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
7、-,-ML-T-Z4LI7YB b W 777770bl1L75b 3 -a MIL-T-24494B(SH) SPECIFICATIONS FEDERAL PPP-(3-2020 - Chemicals, Liquid, Dry, and Paste: Packaging of. PPP-F-320 - Fiberboard; Corrugated and Solid, Sheet Stock (Container Grade), and Cut Shapes. MILITARY MIL-L-19140 - Lumber and Plywood, Fire-Retardant Treated
8、. STANDARD FEDERAL FED-STD-313 - Material. Safety Data, Transportation Data and Disposal Data for Hazardous Materials Furnished to Government Activities. (Unless otherwise indicated, copies of federal and Military specifications and standards are available from the Naval Publications and Forms Cente
9、r, (ATTN: NPQDS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.2 Non-Government Dublcations. The following documents form a part of this document to the extent Specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the D
10、oDISS cited in the solicitation. documents not: listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, the issues of AMERICAN CHEMICAL SOCIETY (ACS) Reagent Chemicals. (Application for copies should be addressed to Applied Publications,
11、American Chemical Society, 1155 16th Street, N.W., Washington, DC 20036.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 1193 - Standard Specification for Reagent Water, (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street
12、, Philadelphia, PA 19103.) (Nongovernment standards and other publications are normally available from the organizations that prepare or distribute the documents. may be available in or through libraries or other informational services.) These documents also 2.3 Order of mecedence. In the event of a
13、 conflict between the text of this document and the references cited herein, the text of this document takes precedence, Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. men specified (see
14、6.2), a sample shall be subjected to first article inspection (see 6.4 in accordance with 4.3). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-o c MIL-T-24474B 68 7777906 0338757 5 M 3.2 Materials. The sodium salts of EDTA shall be white, granular
15、 powders. Type I, the tetrasodium salt of EDTA, shall be Na4EDTAe4H20 (C10H20012N2Naq). Type II, the trisodium salt of EDTA, shall be Na3EDTAa3H20 (C10H19011N2Na3). Type III, the disodium salt of EDTA, shall be Na2EDTAS2H20 (C10H18010N2Na2). 3.3 Composition. 3.3.1 Type I. The tetrasodium salt of EDT
16、A shall contain a minimum of 83.2 percent tetrasodium EDTA as active ingredient, The water (H20) content shall not exceed 15.8 percent. Other organic and inorganic impurities shall not exceed 1.0 percent of the total. The composition shall be determined (see 4.5). 3.3.2 Twe II. The trisodium salt of
17、 EDTA shall contain a minimum of 86.2 percent trisodium EDTA as active ingredient. 13.1 percent. percent of the total. The H20 content shall not exceed Other organic and inorganic impurities shall not exceed 0.7 The composition shall be determined (see 4.5). 3.3.3 TvDe III. The disodium salt of EDTA
18、 shall contain a minimum of 89.3 Other organic and inorganic impurities shall not exceed 1.0 percent of percent disodium EDTA as active ingredient. percent. the total. The H20 content shall not exceed 9.7 The composition shall be determined (see 4.5). 3.4 Chelation activity. Chelation activity shall
19、 be determined by the oxalate method and the potentiometric titration method. 3.4.1 Oxalate method. The chelation activity shall be defineasin milli- grams (mg) of calcium carbonate per gram of the sample (see 4.5.2.1). Chelation activity shall agree within plus or minus 5 mg. EDTA shall be not less
20、 than 219. not less than 241. than 267. The chelation activity of type I The chelation activity of type II EDTA shall be The chelation activity of type III EDTA shall be not less 3.4.2 Potentiometric titration. The chelation activity of each type of EDTA shall be within plus or minus 2.0 percent of
21、the values determined for each type by the oxalate method (see 3.4.1 and 4.5.2.2). Furthermore, for type I only, the volume of standard acid used to titrate to the second inflection point (volume 2) shall be twice the volume used to titrate to the first inflection point (volume i) within 0.5 millili
22、ter (mL). 3.5 pH value. The pH value shall be determined (see 4.5.3). The pH value shall agree within plus or minus 0.2 pH unit. be between 10.5 and 11.5. 9.5. The pH value for type I EDTA shall The pH value for type II EDTA shall be between 8.5 and The pH value for type III EDTA shall be between 4.
23、5 and 5.5. 3.6 Material safety data sheet (MSDS). The contracting activity shall be provided a material safety data sheet at the time of contract award. The MSDS shall be provided in accordance with the requirements of FED-STD-313. The MSDS shall be included with each shipment of the material covere
24、d by this specifica- tion (see 6.5). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible fo
25、r the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless
26、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 ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet a
27、ll requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring
28、that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of the manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of know
29、n defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) (b) First article inspection (see 4.3). Quality conformance inspection (see
30、 4.4). 4.3 First article inspection, First article inspection shall consist of the tests specified in 4.5 (see 6.3), 44 Quality conformance inspection. Quality conformance inspection shall consist of the tests of 4.5 (see 6.3). 4.4.1 m. A lot shall consist of that amount of material that has been pr
31、oduced as the result of a single manufacturing process. In cases in which it is not practical to define the sampling lot in this manner, the lot shall consist of all material manufactured as one batch and offered for delivery at one time. 4.5 Tests, 4.5.1 Water content, Triplicate tests shall be per
32、formed on each sample of approximately 2.5 grams, tared weighing bottle (50 by 30 millimeters) so that the sample is evenly spread over the bottom of the bottle. determined plus or minus 0.2 mg. escape), and the sample shall be placed in an oven set at 165 points by the second derivative method (ACS
33、 Reagent Chemicals). Volume 1 and volume 2 shall be interpolated to 0.01 mL; of volume 1 and volume 2; (b) Sufficient data are accumulated to determine the inflection (c) An automatic titrator also may be used to determine the volumes (d) The chelating activity is calculated by the following equatio
34、n: (volume 2 - volume 1) x concentration of HC1 x 100.09 Chelating activity expressed as mg CaC03 per gram of chelant = weight of sample (gram) In addition, volume shall equal volume 2 minus volume 1, within 0.5 mL for type I, only. 4.5.2.2.2.2 TvDe II EDTA. Type II EDTA shall be tested in the same
35、manner as that used for type I. 4.5.2.2.2.3 Tpe III EDTA. Type III EDTA sample solutions shall be titrated using fresh standard 0.1 M sodium hydroxide solutions in a 50-mL buret. The volume of base volume needed to reach the inflection point shall be determined as follows: (a) (b) Sufficient data ar
36、e accumulated to determine the inflection point In the vicinity of the inflection point, l-mL increments of base are added and the pH or mV output of the pH meter are recorded; by the second derivative method (ACS Reagent Chemicals). The volume shall be interpolated to 0.01 mL; An automatic titrator
37、 also may be used to determine the volume; The chelating activity is calculated by the following equation: (c) (d) Chelating activity expressed as mg volume x concentration of*NaOH x 100.09 - CaCO, per gramof chelant J weight of sample (gram) 4.5.3 pH value, For each sample of type I, type II, or ty
38、pe III EDTA to be tested (see 4.4.2.2), three l-gram portions shall be tested in accordance with 4.5.2.2.2 and the pH value recorded. 4.6 InsDection of Dackaginp;. Sample packages and packs and the inspec- tion of the preservation, packing and marking for shipment, stowage, and storage shall be in a
39、ccordance with the requirements of section 5 and the documents specified therein. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5. PACKAGING (The packaging requirements specified herein apply only for direct Govern- ment acquisition,) 5.1 General
40、 5.1.1 Navy fire-retardant reauirements. (a) Lumber and plywood. When specified (see 6.2), all lumber and plywood (including laminated veneer material used in shipping container construction members, blocking, bracing, and reinforcing) shall be fire-retardant treated material conforming to MIL-L-191
41、40 as follows: Levels A and B - Type II - weather resistant. Level C - Type I - non-weather resistant. Category 1 - general use. Category 1 - general use. (b) Fiberboard, When specified (see 6.2), fiberboard used in the construction of class-domestic, non-weather resistant fiberboard and cleated fib
42、erboard boxes (including interior packaging forms) shall meet the flamespread and the specific optic density requirements in accordance with PPP-F-320. 5.2 Packaging reauirements. The EDTA shall be preserved level A, or commercial, packed level A, B, or commercial as specified (see 6.2), and marked
43、in accordance with PPP-C-2020 and 5.3. applicable packaging acquisition options therein as specified (see 6.2). The EDTA shall be furnished in 25-, 50-, or 100-pound quantities. Preservation for level A items shall be in fiber drums (type IV unit containers) in accordance with PPP-(2-2020. waterproo
44、f, reclosable liner. nor contribute impurities to the materials. dance with PPP-C-2020. acceptable. Packaging shall include bar coding and Each drum shall be furnished with a flexible, plastic, The plastic liner shall not react chemically with, Drums shall be palletized in accor- Shrink-film bonding
45、 in lieu of unit load strapping is 5.3 Markinq. In addition to any specia1 marking required (see 6.2), fiber drums and palletized unit loads shall-be marked for shipment in accordance with PPP-C-2020. Unit container markings shall include: (a) Manufacturers or contractors name, or both. (b) Lot numb
46、er. (e) Contract or order number. (d) Date of manufacture (month and year). (e) Precautionary labeling, (f) Shelf life (expiration date of 48 months from date of manufacture: for example, manufactured 1/88, expires 1/92), including the following note: “NOTE: Mandatory shelf life material. Discard ma
47、terial after expira- tion date, If 8 c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-294798 68 m 777770b OLL87b3 O m MIL-T-24494B(SH) 5.3.1 Precautionarv labe1,ing. Each container shall be labeled with the following: “WARNING: CAUSES IRRITATI
48、ON Avoid contact with eyes, skin, and clothing. Wash thoroughly after handling. FIRST AID: plenty of water for at least 15 minutes. with water. In case of contact with eyes, immediately flush eyes with Call a physician. Flush skin (Wash clothing before reuse).“ 5.4 Material safetv data sheet. A copy
49、 of the material safety data sheet shall be attached to the shipping document for each destination (see 3.6). 6. NOTES (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Intended use. The type I EDTA covered by this specification is for cleaning boilers. the treatment of boiler feedwater for marine boilers on Naval ships. III EDTA is for cleaning boilers. The type II EDTA covered by this specification is for us
