1、.I /F 07 d3 GG -T - 315C October 1, 1975 SUPERSEDING Fed. Spec. GG-T-315B July 15, 1969 and Fed. Spec. GG-T-351B March 22, 1967 FEDERAL SPECIFICATION TRMOMETERS, SELF -lNBICATENG, LIQUID -SN-GLASS This specification was approved by the Comissioner, Federal Supply Service, General Services Administra
2、tion, for the use of all Federal agencies. 1. SCOPE AND CLASSIFICATION 1.1 Scope. This specification covers liquid-in-glass, self-indicating cooking thermometers (see 6.1) 1.2 Classification. 1.2.3. Classes. Thermometers with scale ranges as indicated, shall be of the following classes as specified
3、(see 6.2): Class 1 - Confectioners, 60F - 360F Class 2 - Cooking (deep fry), 60F - 450F Class 3 - Cooking (roast meat), 120F - 195F Class 4 - Dough testing, 60F - 110F Class 5 - Oven, 200 - 600F 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invitation for bid
4、s or request for proposal, form a part of this specification to the extent specified herein: Federal Specifications: QQ-A-250/8 - Aluminum Alloy 5052, Plate and Sheet PPP-P -2 9 1 - Paperboard, Wrapping and Cushioning PPP-B-56 6 - Boxes, Folding, Paperboard PPP-B-676 - Boxes, Setup PPP-C-843 - Cushi
5、oning Material, Cellulosic , PPP-E-636 - Boxes, Shipping, Fiberboard .-. /- i 1 .z K -. r- - THIS DOCUMENT CONTAINS /.3 PAGES. I - _ - - _-_1 i /e FSC 6685 Licensed by Information Handling ServicesGG-T-3LSC bb m 9797774 OOLLb7b 7 E . GGT-315C Federal Standard: Fed. Std. No. 123 - Marking for Shipmen
6、t (Civil Agencies), (Activities outside the Federal Government may obtain copies of Federal Specifications, standards, and Handbooks as outlined under General Information in the Index of Federal Specifications and Standards and at the prices indicated in the Index. is for sale (061 a subscriptdon ba
7、sis by the Superintendent of Doments, U.S. Government Printing Office, Washington, DC The Index, which includes cumulative monthly supplements as issued, 20402. (Single copies of this specification and other Federal specifications required by activittes outside the Federal Government Por bidding pur
8、poses are available without charge from Business Service Centers at the General Services Administration Regional Offices in Boston, New York, Washington, DC, Atlanta, Chicago, Kansas City, MO, Fort Worth, Denver, San Francisco, Los Angeles, and Seattle, WA (Federal Government activities may obtain c
9、opies of Federal Specifications, Standards, and Handbooks and the Index of Federal Specifications and Standards from established distribution points in their agencies.) Military Standards: MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipmnt and Storage At
10、tribut es (Copies of Military specifications and Standards required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specificat
11、ion to the extent specified herein. identified, the issue in effect on date of invitation for bids or request for proposal shall apply: Unless a specific issue is American Society for Testing and Materials (ASTM) Ai67 - Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip A76 -
12、 Stainless and Heat-Resisting Chromium Steel Plate, Sheet and Strip. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Kace St. Philadelphia, PA 19103.) 2 Licensed by Information Handling ServicesUniform Classification Committee, Agent Uniform Freigh
13、t Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) National Motor Freight Traffic Association, Inc., Agent National Motor Freight Classification (Application for copies should be addressed to
14、 the American Trucking Associations, Inc., Tariff Order Section, 1616 P Street, N.W., Washington, DC 20036.) 3. REQUIREMENTS 3.1 Standard product. The thermometers covered herein shall be a current standard productof the manufacturer, except for any changes necessary to meet specification requiremen
15、ts. 3.2 Materials. Materials shall conform to the applicable specifications, standards and sequirements specified herein. Materials not definitely specified shall be of the quality used by the manufacturer in his comercial thermometers. 3.2.1 Corrosion-resisting steel. The corrosion-resisting steel
16、sheet shall conform to type 301, 302 or 304 of bASTib AL67 or type 430 of ASTM Al76. 3.2.2 Aluminum. Aluminum sheet or plate shall conform to temper O, 5052 of QQ-A-250/8. 3.3 Design and construction. The thermometers, shall be similar to figure 1 Figures are for illustration purposes only and are o
17、r figure 2, as applicable. not intended to preclude procurement of comercial thermometers conforming to the requirements specified herein. The thermometers shall consist of a case or mounting, bulb, and glass tube, and shall have a graduated Fahrenheit (F) scale. The thermometers shall conform to th
18、e requirements of table I. thermometers shall be designed for a temperature of 40F in excess of the highest temperature indicated on the scale and shall not be damaged when tested a6 specified in 4.3.1. The. thermosensitive fluid shall remain in the portion of the stem between the top of the bulb an
19、d the lowest temperature graduation when the thermometer is subjected to a temperature of 3OoF when tested as specified in 4.3.1. The thermometers shall register the temperature, within the tolerances specified in table I, when tested as specified in 4.3.2. The 3 . . -. . . . . .- -. . Licensed by I
20、nformation Handling Services-1 GG-T-315.C bb 7977774 OOLLb7 O W GG-T-315C TABLE I. Dimensions Stem length, below ease Scale Length Tolerance inches inches overall Range - $. 112 -t. - 112 inches inch inch i- 1 inch s minimum (9 1 OF OF - a 60-360 2 2 60-450 5 3 120-195 2 4 60-110 2 10 5 200-600 10 -
21、 - - 9 a2 10 12 2 6-1/2 6 24 1.4 min. - 3.3.1 Cases. The class 1 and 2 thermometer cases shall be fabricated from The class 1 and 2 thermometers corrosion-resisting steel specified in 3.2.1. shall have a minimum 1/8 inch diameter hole at the top of the case and shall have a metal clip. The clip shal
22、l be adjustable and shall be designed to hold the thermometer in an upright position away from the edge of a cooking vessel. The case for the class 4, thermometer shall be fabricated from the alumhum specified in 3.2.2 or brass, and shall have a transparent front window. The window shall not craze o
23、r crack when tested in 4.3.1. 4 shall have a handle a minimum of 3-1/2 inches long with a minimum 1/8 inch diameter hole at the top. The case for the class I 3.3.2 Mounting. The mounting for class 5 thermometers shall be fabricated from the corrosion-resisting steel specified in 3.2.1. The thermomet
24、er shall be designed to hang from and to stand on bar type oven racks (bars either parallel to or at right angles to door). horizontal or vertical. to stand on the oven racks. from the vertical. made of nickel plated brass shall hold the tube to the scale mounting without obscuring any portion of th
25、e scale. prevent the tube from shifting with respect to the scale. shall be protected by a ventilating bulb guard. The thermometer bulb shallbe either Vertical mounted thermometer base shall be wide enough The mounting shall be inclined backwards, 15 to 30 The mounting shall have an etched scale. Ib
26、o metal straps A mechanical means shall be provided to The thermometer bulb 3.3.3 Stem. The sheath for the class 3 thermometer and the stem for the clasb 4 thermometer shall be fabricated from 300 series corrosion-resisting steel specified in 3.2.1. The sheath for the class 3 thermometer shall be po
27、inted at one end and contain the tube. The other end of the sheath shall form a background for the scale. Licensed by Information Handling ServicesGG-T-315C 3.3.4 Scales. Unless otherwise specified each fifth graduation shall be longer than the intervening graduation and shall be numbered. graduatio
28、ns shall be straight, regularly spaced, of uniform width, and perpendicular to the suris of the glass tube. The scale of the class 1 thermometer shall be graduated in either 1 or 2 increments and shall have the following markings at the temperatures indicated. The 300 to 309 - Hard Crack 270 to 290
29、- Soft Crack 250 to 266 - Hard Ball 235 to 239 - Sot Ball The scale of the class 2 thermometers shall be graduated in 5 increments. The scale of the class 3 thermometers shall be graduated as follows. .- 180 - lhrkey, Fresh 175 - Lamb, Medium 170 - Beef, Well - Pork, Fresh - Turkey Roll - Veal, Bone
30、less 160 - Beef, Medium - Ham, Cured 140 - Beef, Rare 125 - Beef, Rib The scale of the class 4 thermometers shall be graduated in lo increments. The scale of the class 5 thermometer shall be graduated in loo increments. Each 100 increment shall be numbered. at the temperatures indicated. The followi
31、ng marking shall be made 300 - Slow 400 - Hot 350 - Moderate 450 - Very hot 3.3.5 Tube. The thermometer tube shall be a hermetically sealed, magnifying lens, glass tube of uniform bore, with a bulb at one end. The tube shall not crack or craze when tested as specified in 4.3.1. The tube shall contai
32、n the thermosensitive fluid. The thermosensitive fluid for the classes 1, 2, and 5 thermometers shall be red reflective mercury. 5 Licensed by Information Handling Servicesc a, G-T-315C 3.4 Finish. The thermometers shall be finished in accordance with the manufacturers practice, except cadmium plati
33、ng shall not be used. 3.5 Marking for identification. Each thennometer shall be marked with the manufacturers name9 or trademark readily identifiable with said manufacturer. 3.6 Workmanship. The numbers and graduations shall be legible. The tube shall not be loose. be free of blisters, scratches, an
34、d tool marks. Clasps shall not mask the scale. The finish shall 4. QUALITY ASSURANCE PROVISIBNS 4.1 Responsibility.for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except
35、as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements speci- fied herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in
36、 the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Inspection. Sampling for inspection shall be performed in accordance with MIL-STD-105, except where otherwise indicated hereinafter. 4.2.1 Component and material ins
37、pection. In accordance with 4.1, components and materials shall be inspected and tested in accordance with all the require- ments of referenced specifications and standards unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase document. 4.2.2 End ite
38、m inspection. The inspection lot shall consist of all ther- mometers of one description offered for inspection at one time. sample unit shall be one completely fabricated thermometer. The 4.2.2.1 Visual examination. The end item shall be examined for the defects set forth in table II. The inspection
39、 level shall be level II with an acceptable quality level (AQL) of 2.5 for major defects and 6.5 for total defects, expressed in terms of defects per hundred units. 6 I Licensed by Information Handling ServicesGGT-315C TABLE II. Classification of defects Classification Examine Defect Major Minor Fin
40、ish Blister, scratch, or tool mark Cadmium plated Design , cons t ruc- Not cdibrated fn degrees Fahrenheit tion and workman- ship Tube loose Graduations not as specified Graduations not perpendicular Glass tube not magnifying type Fluid color not red reflective Hole missing, when applicable Handle m
41、issing (class 4) Clip missing (classes 1 and 2) Clip not designed to hold stem away to tube (classes 1, 2 and 5) from the edge of cooking vessel (classes 1 and 2) Clip not adjustable (classes 1 and 2) Sheath missing (class 3) Sheath not pointed (class 3) Sheath does not form background of Bulb not p
42、rotected or not ventilated Not capable of standing on and hanging Clasps mask scale the scale (class 3) (class 5) from oven racks (class 5) Identification Not as specified, missing marking X X X X X X X X X X X X X X X X x X X X 4.2.2.2 Dimensional examination. Dimensional examination shall be made
43、of a complete thermometer to determine conformance to dimensions specified herein. terms of defects per hundred units. The inspection level shall be S-2 with an AQL of 4.0, expressed in 7 i - Licensed by Information Handling ServicesGG-T-315C bb 7777774 0011682 2 m I t 4.2.3 Testing of the end item.
44、 The thermometers shall be tested as specified I In 4.3.1 and 4.3.2. The inspection level shall be S-1 with an AQL of 1.5 defects, expressed in terms f defects per hundred units. 4.2.4 Examination of preparation for delivery. An exadnation shall be made to determine that packaging, packing and marki
45、ng comply with section 5. Defects shall be scored as specified in table III. The sample unit shall be one shipping container fully prepared for delivery except that it need not be closed. The lot shall be the nuniber of containers offered for inspection at one time. expressed in tem of defects per h
46、undred units. The inspection level shall be S-2 with an AQL of 2.5 defects, TABLE III. Examhation of preparation for delivery incorrect; illegible; of improper size, and interior con- location, sequence, or method of application. tainers Materials Component missing or damaged or not as specified. Co
47、ntents Number of thermometers per container is more or less than required. I 4.2.4.1 Examination of shipping containers. Wen shipping containers are E required to be in accordance with PPP-B-636, examination for defects in closure, waterproofing, and strapping shall be in accordance with PPP-B-636.
48、4.3 Tests. A standard test thermometer with a equivalent range and graduation marks shall be used for the tests. shall bear current accuracy certification traceable to the National Bureau of Standards. the tests. Class 5 thermometers may be tested in a controlled temperature oven. The standard therm
49、ometer The liquid used in the test bath shall be circulating during 4.3.1 Range test. The stem of the thermometer shall be immersed a minhum of 3 inches into the liquid in the test bath at a temperature 40F above the highest reading on the scale and held for 1 minute. The thermometer shall be subjected to a temperature of 30F + 5F. the thermometer, separation of the indicating fluid, crazing or cracking of the window, or glass tube shall constitute failure of this test. Evidence of damage to 8 Licensed by Information Handling ServicesGG
