1、/- E-/o-/ 3 MIL-D-22825C 16 March i976 SUPERSEDING MIL-D-22825B 12 April 1965 MILITARY SPECIFICATION DEHYDRATORS, DESICCANT, REFRIGERANT 12 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers, nonrefillabl
2、e, straight through, liquid line dehydrators suitable for use with refrigerant type 12 (see 6.1). 1.2 Classification. Dehydrators shall be of the following sizes (see 6.2): Size - Capacity in tons of refrigeration (TR) 1 2TR (3/8-inch flare connections) 2 3 TR (3/8-inch flare connections) 3 5 TR (1/
3、2-inch flare connections) 4 7-1/2 TR (5/8-inch flare connections) 5 10 TR (5/8-inch flare connections) 2. APPLICABLE 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 exte
4、nt specified herein: SPECIFICATIONS FEDERAL PPP-B-566 - Boxes, Folding, Paperboard PPP-B-636 - Boxes, Shipping, Fiberboard PPP-B-665 - Boxes: Paperboard, Metal Edged and Components PPP-B-676 - Boxes, Setup PPP-T-45 - Tape, Gummed, Paper, Reinforced and Plain, for Sealing and Securing FSC 4130 THIS D
5、OCUMENT CONTAINS y PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-22825C LI1 W 7777706 0233577 b a .- MIL-D-22 825C i : MILITBRY MIL-P-116 - Presemation, Packaging, Methods of STANDADS MILITARY MIL-STD-105 - Sampling Procedures and Tabl
6、es for Inspection by MIL-STD-129 - Marking for Shipment and Storage )IC 35845 - Dehydrators, Desiccant, Refrigerant 12 Attributes (Copies of specifications and standards required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as dir
7、ected by the contracting officer.) 2.2 Other publications. The following documents form a part of this speci- fication to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply: Underwriters l Laboratories, Inc.
8、 (UL) Standard 207 (C) - Refrigerant Containing Components (Application for copies should be addressed to the Underwriters Laboratories, Inc., 207 East Ohio Street, Chicago, IL 60611; 50 Dundee Road, Box 247, North- j brook, IL; Walt Whitman Road, Melville, L.I., NY Santa Clara, CA 95050.) 11746; or
9、 1655 Scott Blvd., Air-conditioning and Refrigeration Institute (AI) Standard 710 - Standard for Liquid Line Driers (Application for copies should be addressed to the Air-conditioning and Refrigeration Institute, 1815, No. Fort Myer Drive, Arlington, VA.) National Motor Freight Traffic Association,
10、Inc., Agent National Motor Freight Classification (Application for copies should be addressed to the American Trucking Associations, Inc., Tariff Order Section, 1616 P Street, N.W., Washington, DC 20036.) Unifonn Classification Committee, Agent Uniform Freight Classification (Application for copfes
11、should be addressed to Committee, Room 1106, 222 South Riverside Plaza, the Uniform Classification Chicago, IL 60606.) I 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-22825C 43 m 7777706 0233600 7 * MIL-D-22825C (Technical society and techn
12、ical association specif ications and standards are generally available for reference from libraries. tributed among technical groups and using Federal agencies .) They are also dis- 3. REQUIREMENTS 3.1 Standard product. The dehydrators delivered under this specification shall be new and the manufact
13、urers current commercial product, except for any changes necessary to comply with specification requirements. 3.2 Code and standards compliance. 3.2.1 Safety standard. 3.2.2 Capacity rating. The dehydrators shall conform to UL Standard 207(C). The dehydrators shall conform to AR1 Standard 710, excep
14、t as specified herein including capacity rating. 3.2.3 UL certification. Prior to approval of the first shipment, the supplier shall submit satisfactory evidence to the contracting officer or his author- ized representative that the dehydrators he proposes to supply under this specification meet the
15、 requirements of UL Standard 207(C). of meeting the requirements of L Standard 207(C) shall be the L label, an approved UL listing, or a certified test report from a recognized independent testing laboratory acceptable to the Government, proving conclusively that the dehydrators offered conform to L
16、 Standard 207(C). Acceptable evidence 3.2.4 AR1 certification. Prior to approval of the first shipment, the supplier shall submit satisfactory evidence to the contracting officer or his authorized representative that the dehydrators he proposes to supply under this speci- fication conform to AR1 Sta
17、ndard 710. requirements of ARI Standard 710 shall be a certification data provided by the manufacturer over the signature of a responsible officer, by a certi- fied test report from 8 recognized independent laboratory, data shall include the statement that the test data was obtained by the testing p
18、rocedure outlined in section 5 of AR1 Standard 710. Acceptable evidence of meeting the Certification 3.3 Materials. The materials shall conform to the requirements specified herein and on MS 35845. quality used in the manufacturers standard dehydrators. Materials not definitely specified shall be of
19、 the 3.4 Design and construction. The dehydrators shall consist of a shell containing 8 desiccant and an external flare connection at each end. struction shall be as specified herein and in accordance with MS 35845. flare connection ends shall be capped and sealed against contamination during shipme
20、nt and storage. Con- The 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-22 825C 3.5 Desiccants. Desiccants shall be as specified on MS 35845. 3.6 Marking. 3.6.1 Special marking. The inlet end or the direction of flow shall be clearly stamped
21、, etched, or embossed on the dehydrator or shown by the manu- facturers standard marking. 3.6.2 Identification. The manufacturers name or easily identifiable trade name shall be clearly stamped, embossed, or etched on a securely attached corrosion-resistant metal plate or indicated on a pressure-sen
22、sitive label or decalcomania suitably waterproofed and attached to the shell with an adhesive. 3.7 Finish. The dehydrators shall be finished as specified on MS 35845. * 3.8 Workmanship. The finished dehydrators shall be free from burrs, slivers, rough edges and malformations. 4. QUALITY ASSURANCE PR
23、OVISIONS * 4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. the contractor may use his own or any other facilities suitable for the performance of the inspection requir
24、ements specified herein, unless disapproved by the Government. inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise specified in the contract, The Government reserves the right t
25、o perform any of the 4.2 Sampling for inspection and acceptance. Sampling for inspection and acceptance shall be performed in accordance with the provisions set forth in MTL-STD-105, except where otherwise indicated. * 4.2.1 Component and material inspection. In accordance with 4.1 above, components
26、 and materials shall be inspected in accordance with all the require- ments of referenced specificaitons, drawings , and standards unless otherwise excluded, amended, modified or qualified in this specification or applicable purchase document. 4.2.2 End item inspection. The lot shall consist of all
27、dehydrators of one size offered for inspection at one time. The sample unit shall be one dehydrator. * 4.2.2.1 Visual examination. The dehydrator shall be examined for defects in table I. The inspection level shall be II with an acceptable quality level (AQL) of 2.5 for major defects and 6.5 for tot
28、al defects, expressed in terms of defects per hundred units. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-22825C TABLE I. Classification of defects Classification Examine Defect Major Minor Design, construction No flare connection, flare c
29、onnection and workmanship, not capped or sealed X general Finish Steel not dipped, plated, coated, or otherwise treated to resist corrosion X Sharp edges, slivers, or burrs x Marking Inlet end or direction of flow not clearly stamped, etched, or embossed on the dehydrator or not indicated on decalco
30、mania X Identification Omitted, incorrect, illegible, not marking attached with adhesive, not specified type of plate or material, not etched, stamped or embossed, whichever required X * 4.2.2.2 Dimensional examination. The dehydrator shall be examined for compliance with dimensions specified. toler
31、ance shall be a defect. 4.0 expressed in terms of defects per hundred units. Any dimension not within the specification The inspection level shall be S-2 with an AQL of 4.2.3 Packaging inspection. An inspection shall be made to determine that preservation, packaging, packing, and marking complies wi
32、th the section 5 requirements. number of containers offered for inspection at one time. The sample unit shall be one container fully prepared for delivery. The inspection level shall be S-2 and the AQL shall be 4.0 expressed in terms of defects per hundred units. Defects will be as set forth in tabl
33、e II. The lot shall be the 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-2225C 41 99797Ob 0213b03 4 = MIL-D-22825C TABLE II. Inspection of packaging Examine Defect Marking, (exterior Otnitted; incorrect; illegible; of improper size, and int
34、erior) location, sequence, or method of application Preservation Preservation missing, not applied as specified Material Component missing, damaged, or otherwise defective 4.2.3.1 Inspection of interior boxes and shipping containers. When interior boxes and shipping containers are required to be in
35、accordance with PPP-B-636, PPP-B-566, or PPP-B-676, inspection for the closure, waterproofing and rein- forcing, as applicable, shall be in accordance with the appendix of the applicable box specification. * 4.2.4 Certificate examination. Certificates of compliance, certified test reports, approval
36、labels or listing marks for codes and standards, as applicable, that are submitted as proof of compliance with the specification requirements shall be examined and validated. 5. PACKAGING 5.1 Preservation - packaging. Preservation - packaging shall be level A or C as specified (see 6.2). 5.1.1 Level
37、 A packaging. Each dehydrator shall be preserved and packaged in accordance with method III of MIL-P-116 in a snug-fitting fiberboard, folding paperboard, Set-up paperboard, or+ metal-stayed paperboard box conforming to style RSC (end opening) or FPP, type CF, variety SW or SF, class domestic, grade
38、 125 of PPP-B-636; variety 1, style II, type D or E, class e, or style III, type G, class i of PPP-B-566; type I, variety 1, class A, style 2 of PPP-B-676; or class 1, style C of PPP-B-665, respectively. shall be closed by means of 2 inch minimum width tape conforming to type III, grade B of PPP-T-4
39、5. of the applicable box specification. Metal-stayed paperboard boxes Other boxes shall be closed in accordance with the appendix 5.1.2 Level C packaging. Dehydrators shall be preserved and packaged to afford adequate protection against physical damage during shipment from the supplier to the first
40、reveiving activity. The package and the quantity per package shall be the same as that normally used by the supplier for retail distribution. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,. A, MIL-D-22825C 41 m 9999906 0213604 b m MIL-D-22825C 5
41、.2 Packing. 5.2.1 Level A. Dehydrators, preserved and packaged as specified in 5.1, I shall be packed ki 8 snug-fitting fiberboard shipping container conforming to style RSC, grade V2s of FTP-B-636. Each fiberboard container shall be closed in accordance with method III, waterproofed in accordance w
42、ith method V and reinforced as specified in the appendix of PPP-B-636. dimension limitations of PPP-B-636 shall not be exceeded. Packing shall be level A, B or C as specified (see 6.2). The weight and 5.2.2 Level B. Dehydrators, preserved and packaged as specified in 5.1, shall be packed in a snug-f
43、itting fiberboard shipping container conforming to style RSC, type CF, variety SW or SF, class domestic, grade 275 of PPP-B-636. Closure shall be in accordance with method II of the appendix of the container specification. be exceeded. The weight and dimension limitations of PPP-B-636 shall not 5.2.
44、2.1 Weather-resistant shipping containers. When specified (see 6.2), the fiberboard shipping container shall be a grade VC, V3s or V4s fiberboard box fabricated in accordance with PPP-B-636 and closed in accordance with method III as specified in the appendix of the container specification. 5.2.3 Le
45、vel C (commercial packing). Dehydrators, preserved and packaged as specified in 5.1, shall be packed in a manner to insure carrier acceptance id safe delivery at destination at the lowest transportation rate for such supplies. wed by the supplier for retail distribution. Containers shall comply with
46、 Uniform Freight Classification or National Motor Freight Classification, as applicable. or order, interior packages and shipping containers shall be marked in accordance with MIL-STD-129. The quantity per shipping container shall be the same as that normally 5.3 Marking. In addition to any special
47、marking required by the contract 6. NOTES 6.1 Intended use. The dehydrators covered by this specification are Dehydrators are used for the purpose of collecting and primarily intended for use as a component of Military field-type refrigera- tion equipment. holding within the desiccant, water n the s
48、ystem in excess of the amount which c8.n be tolerated in the circulating refriger-t. 6.2 Ordering data. Procurement documents should specify the following: (a) Title, number, and date of this specification. (b) Size required (see 1.2). (c) (d) Selection of applicable levels of preservation and packa
49、ging when weather-resistant grade fiberboard shipping containers are and packing (see 5.1 and 5.2). required for level B packing (see 5.2.2.1). 7 , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,. 1. -NIL-D-22825C ql 7777706 0233605 8 m / I MIL-D-22825C 6.3 The outside margins of this documeat have been marked to indicate where J changes from the previous issue have been
