1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-lIIL-G-2860E UNIFORM CLASSIFICATION COIPIITTEE Uniform Freight Classification Ratinss, Rules, and Resulations. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) C337-57 - Method of Test for Average Line
2、ar Expansion of Glass. F-218 - Standard Method Por Analvzincr Stress In Glass, (Technical society and technical association specifications and standards are generally available for reference rom libraries. and using Federal Agencies. ) They are also distributed among technical groups requirements of
3、 this specificatio;. 3.3 Chape and dimensions, I 3.4 Linear coeficient 02 expansion, The linear coefficient of expansion shall not exceed 33.0 X lo- per degree centigrade (“C.) between temperature range of O* and 3OOOC. (see 4.5.1). strain pattern characteristic of heat tempered glass (see figuxe 3)
4、. I 4, QUAliITY ASSURANCE PROVXSIONS herein. Except a& otherwise specified in the contract, 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 p
5、erform any of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2 -First article inspection. tion and tests specified in 4.4 and 4.5. First article inspection shall consist of the examina- 4.3 4.3.1 Lot. For purposes of sampling, a lot shall consist
6、of all glasses of one type Camplin2 for quality conformance inspection. produced in one plant under essentially the same conditions and offered for delivery at one time, . shall be selected from each lot in accorcance with table I for the examination specified in 4.4.1. The acceptable quality level
7、(approximately) equaIs 2.5 percent defective. 4.3.2 Samplinq for visual dimensional examination. A random sample of glasses Number of 4.3.3 Samplinq for tests. specified in 4.4.2. Three glasses shall be selected from each lot for the tests 4.4 Visual examination and tests. 4.4.1 Visual and dimension
8、al examination, Each of the sample glasses selected in Any items in the sample containing one or more accordance with 4.3.2 shall be visually and dimensionally examined to verify compliance with the requirements of this specification. visual and dimensional defects shall not be offered for delivery,
9、 and if the number of defective items in any sample exceeds the acceptance number for that sample, this shall be cause for rejection of the lot represented by the sample. separately to each of the tests specifi iri 4.5.2 through 4.5.4 except as otherwise speci- fied to determine that the samples con
10、f to the requirements of this specification. If any one of the samples tested-is found to be not in conformance with the requirements of this specification, this shall be cause for rejection of the lot represented by the sample. 4.4.2 Tests. -The qiasses selecte in accordance wich 4.3.3 shall be sub
11、jected 4.5 procedures. 4.5.1 Linear coefficient of ex ancion. The linear coefficient glass shall be determined by ASEpuElication C33757 to verify conf 4.5.2 Polariscopic examination. A polariscope such as specifled in ACTM publication F-218 shall be used to examine the glasses qu specified in the AS
12、TM Publication F-218. cycles consisting of a 3-minute inunersi diate immersion in cold water a a temperature of 32OF. tatively for the rings or strain patterns 4.5.3 Thermal shock. Glasses shall be subjected to three successive temperature 4.5.4 impact test_ - - 4.5.4.1 TyEe I lasses. Each of e plac
13、ed flat on a hardwood board whic9h has a cutout wit qlass. A steel ball weighing 0.2 pound e center of the glassr after having fallen 50 inches, radius of the - - .- . . -_ - - - -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. *- MIL-G-ZBbOE ZR
14、M 77777Ob 01i8358 q ml MIL-G-28 60E Each of the Type II glasses, in turn, shall be placed on a flat hardwoo board sogthat the axis of the cylinder is horizontal and parallel to the hardwood board. A steel ball, weighing 0.2 pouna, shall be dropped so that it strikes the top of the arc of the cylinde
15、r at about the mid-point of its axis, having fllen 50 inches. 4.5.5 Chemical solubilit m. The glass shall be tested to determine that the ex- tractable NaZO level is as spezified in 3.6. When requested, the manufacturer shall furnish test data. 4.6 Examination of reparation for deliver Preservation,
16、 packaging, packing and marking shall be examineC!to assure compliance wfth section 5 of this specification. 5. PREPARATION FOR DELIVERY (The preparation fox delivery requirements specified herein apply only for direct 5.1 Packaginz. Packaging shall be level A or C, as specified (see 6.1). 5,l.J. Le
17、vel A. 4.5,4,2 me II lasses. Government: procurements.) Glasses shall be cushioned and packaged in accordance with method III o MIL-P-116glass shall be packaged in a folding box, Set-up box or two-piece corru- gated flute side box conforming to PPP-E-566 or PPP-B-636. against: physical damage during
18、 shipment from supply source to the first receiving activity for immediate or early usage. 5.1.2 Level C, Glasses shall be packaged in a manner that will aford protection 5.2 Packinq, Packing shall be level A, B, or C, as specified (see 6.1). 5.2.1 Level A. Glasses packaged as specified in 5.1.1 sha
19、ll be packaged in overseas shipping containers conforming to PPP-B-57fjr PPP-B-585, PPP-B-591, PPP-B-601 or PPP-B-636. Containers shall be of uniform shape and size, minimum cube and tare consistent with the protection required and shall contain identical quantities. Containers shall be provided wit
20、h a caseliner conforming to MIL-L-10547 and shall be sealed in accordance with the appendix thereto. The caseliner will not be required for container, PPP-B-636, class weather resistant when sealed at all joints and seams including manufacturers joints with tape conforming to PPP-T-60. Glasses packa
21、ged as specified in 5.1.1 shall be packed in domestic shipping conmrs conforming to PPP-B-576, PPP-E-585, PPP-B-591, PPP-B-601 or PPP-B-636. Containers shall be of uniform shape and size, minimum cube and tare consistent with the protection required and shall contain identical quantities. Containers
22、 shall be closed and strapped in accordance with the applicable container specification or the appendix thereto. Glasses packaged as specified in 5.1.2 shall be packed in a manner to insure acceptance sy carrier for transportation at the lowest applicable rate an6 safe delivery to the first receivin
23、g activity. Uniform Freight: Classification Rules or with regulations of other carriers applicable to 5.2.2 Level 0, 5.2.3 Level C. Shipping containers shall be in accordance with the mode of transportation. 5.3 Markinq. In addition to any special marking required by the contract, interior and exter
24、ior containers shall be marked in accordance with MIL-STD-129. 5.4 Use of polystyrene (loose-fill) material. 5.4.1 For domestic shi ment and early equipment installation and level C ackaginq and ackin e jjyityren: (loose-ill) material for domestic shipment and early equipment installation and level
25、C packaging and packing applications such as cushioning, filler and dunnage is prohibited. When approved, unit packages and containers (interior and exterior) shall be marked and labelled as follows: Unless otherwise approved by the procuring activity (see 6.11, us! of “CAUTION Contents cushioned et
26、c. with polystyrene (loose-fill) material. Not to be taken aboard ship. Remove and discard loose-fill material before shipboard storage. If required, recushion with cellulosic material bound niber, fiberboard or transparent flexible cellular material, 4 Provided by IHSNot for ResaleNo reproduction o
27、r networking permitted without license from IHS-,-,-I MIL-G-2bOE 20 9999906 0183257 b MIL-G-2860E 5.4.2 For level A ackaginz and level A and B acking. Use of polystyrene (loose- fill) material is prohibyted for level A packaging aEd level A and B packing applications such as cushioning, filler and d
28、unnage. 6. NOTES 6.1 Ordering data. 6.2.1 Procurement requirements. Procurement documents should specify the following: (a) Title, number, and date of this specification. (b) Type required (see 1.2) . (c) Dimensions and tolerances required (see 3.3). (d) Level of preparation for delivery (see 5.1 an
29、d 5.2). (e) Use of polystyrene material (see 5.4). 6.2 The temperature and pressure criteria for the glasses a.s specified in 1.1 is 6.3 First article inspection. 6.3.1 Invitations for bids should provide that the Government reserves the right to dependent upon the type of mounting assembly and the
30、hardness of the gasket used. waive the requirement for samples for first article inspection as to those bidders offering a product which has been previously procured or tested by the Government, and that bidders offering such products, who wish to rely on such production or test, must furnish eviden
31、ce with the bid that prior Government approval is presently appropriate for the penc?ing procurement. identify changes with rzspect to the previous issue, due to the extensiveness of the changes. 6.4 Changes from revious issue. The symbol “#“ is not used in this revision to Custodians: Review activi
32、ty: DLA - GS User activity: Army - ME None Preparing activity: Navy - SFI (Project 6 680-01 40) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-2bOE 20 m 9777706 0383260 2 m A I MIL-G-2860E I SH10523 FIGU. 1. Shape of type I glasses. T = Thickn
33、essr inch. D = Diameter, inch. H = Height, inch. 6 T = Thicknessr inch. D = Diameterr inch. I I I I I I FIGURE 2. Shape of type II glaw. 1. r - FIGURE 3. Strain pattern *U.S. GOVERNMENT PRINTING OFFICE: 1977 - 703-122/249 r Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
