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DOT 49 CFR PART 179-2010 SPECIFICATIONS FOR TANK CARS.pdf

1、1067 Pipeline and Hazardous Materials Safety Admin., DOT Pt. 179 (6) Instrumentation. A recording potentiom-eter or other suitable instrument with an ap-propriate range must be used to measure and record the outputs of the calorimeter and the thermocouples. (7) Timing Device. A stopwatch or other de

2、-vice must be used to measure the time of flame application and the time of flame pen-etration, if it occurs. (e) Preparation of Apparatus. Before calibra-tion, all equipment must be turned on and allowed to stabilize, and the burner fuel flow must be adjusted as specified in paragraph (d)(2). (f) C

3、alibration. To ensure the proper ther-mal output of the burner the following test must be made: (1) Remove the burner extension from the end of the draft tube. Turn on the blower portion of the burner without turning the fuel or igniters on. Measure the air velocity using a hot wire anemometer in th

4、e center of the draft tube across the face of the opening. Adjust the damper such that the air velocity is in the range of 1550 to 1800 ft./min. If tabs are being used at the exit of the draft tube, they must be removed prior to this measure-ment. Reinstall the draft tube extension cone. (2) Place t

5、he calorimeter on the test stand as shown in Figure 2 at a distance of 8 inches (203 mm) from the exit of the burner cone to simulate the position of the horizontal test specimen. (3) Turn on the burner, allow it to run for 2 minutes for warm-up, and adjust the damp-er to produce a calorimeter readi

6、ng of 8.0 0.5 BTU per ft.2sec. (9.1 0.6 Watts/cm2). (4) Replace the calorimeter with the ther-mocouple rake. (5) Turn on the burner and ensure that each of the seven thermocouples reads 1700 F. 100 F. (927 C. 38 C.) to ensure steady state conditions have been achieved. If the temperature is out of t

7、his range, repeat steps 2 through 5 until proper readings are ob-tained. (6) Turn off the burner and remove the thermocouple rake. (7) Repeat (1) to ensure that the burner is in the correct range. (g) Test Procedure. (1) Mount a thermo-couple of the same type as that used for cali-bration at a dista

8、nce of 4 inches (102 mm) above the horizontal (ceiling) test specimen. The thermocouple should be centered over the burner cone. (2) Mount the test specimen on the test stand shown in Figure 1 in either the hori-zontal or vertical position. Mount the insu-lating material in the other position. (3) P

9、osition the burner so that flames will not impinge on the specimen, turn the burn-er on, and allow it to run for 2 minutes. Ro-tate the burner to apply the flame to the specimen and simultaneously start the tim-ing device. (4) Expose the test specimen to the flame for 5 minutes and then turn off the

10、 burner. The test may be terminated earlier if flame penetration is observed. (5) When testing ceiling liner panels, record the peak temperature measured 4 inches above the sample. (6) Record the time at which flame pene-tration occurs if applicable. (h) Test Report. The test report must in-clude th

11、e following: (1) A complete description of the materials tested including type, manufacturer, thick-ness, and other appropriate data. (2) Observations of the behavior of the test specimens during flame exposure such as delamination, resin ignition, smoke, etc., in-cluding the time of such occurrence

12、. (3) The time at which flame penetration occurs, if applicable, for each of the three specimens tested. 72FR55099, Sept. 28, 2007 PART 179SPECIFICATIONS FOR TANK CARS Subpart AIntroduction, Approvals and Reports Sec. 179.1 General. 179.2 Definitions and abbreviations. 179.3 Procedure for securing a

13、pproval. 179.4 Changes in specifications for tank cars. 179.5 Certificate of construction. 179.6 Repairs and alterations. 179.7 Quality assurance program. 179.8 Limitation on actions by states, local governments, and Indian tribes. Subpart BGeneral Design Requirements 179.10 Tank mounting. 179.11 We

14、lding certification. 179.12 Interior heater systems. 179.13 Tank car capacity and gross weight limitation. 179.14 Coupler vertical restraint system. 179.15 Pressure relief devices. 179.16 Tank-head puncture-resistance sys-tems. 179.18 Thermal protection systems. 179.20 Service equipment; protection

15、sys-tems. 179.22 Marking. Subpart CSpecifications for Pressure Tank Car Tanks (Classes DOT-105, 109, 112, 114, and 120) 179.100 General specifications applicable to pressure tank car tanks. 179.1001 Tanks built under these specifica-tions shall comply with the requirements VerDate Mar2010 15:30 Dec

16、30, 2010 Jkt 220213 PO 00000 Frm 01077 Fmt 8010 Sfmt 8010 Q:49X49220213.XXX ofr150 PsN: PC150Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1068 49 CFR Ch. I (10110 Edition) Pt. 179 of 179.100, 179.101 and when applicable, 179.102 and 179.103. 179.1

17、003 Type. 179.1004 Insulation. 179.1006 Thickness of plates. 179.1007 Materials. 179.1008 Tank heads. 179.1009 Welding. 179.10010 Postweld heat treatment. 179.10012 Manway nozzle, cover and protec-tive housing. 179.10013 Venting, loading and unloading valves, measuring and sampling devices. 179.1001

18、4 Bottom outlets. 179.10016 Attachments. 179.10017 Closures for openings. 179.10018 Tests of tanks. 179.10019 Tests of safety relief valves. 179.10020 Stamping. 179.101 Individual specification require-ments applicable to pressure tank car tanks. 179.1011 Individual specification require-ments. 179.

19、102 Special commodity requirements for pressure tank car tanks. 179.1021 Carbon dioxide, refrigerated liquid. 179.1022 Chlorine. 179.1023 Materials poisonous by inhalation. 179.1024 Vinyl fluoride, stabilized. 179.10217 Hydrogen chloride, refrigerated liquid. 179.103 Special requirements for class 1

20、14A * * * tank car tanks. 179.1031 Type. 179.1032 Manway cover. 179.1033 Venting, loading and unloading valves, measuring and sampling devices. 179.1034 Safety relief devices and pressure regulators. 179.1035 Bottom outlets. Subpart DSpecifications for Nonpressure Tank Car Tanks (Classes DOT-111AW a

21、nd 115AW) 179.200 General specifications applicable to non-pressure tank car tanks (Class DOT 111). 179.2001 Tank built under these specifica-tions must meet the requirements of 179.200, and 179.201. 179.2003 Type. 179.2004 Insulation. 179.2006 Thickness of plates. 179.2007 Materials. 179.2008 Tank

22、heads. 179.2009 Compartment tanks. 179.20010 Welding. 179.20011 Postweld heat treatment. 179.20013 Manway ring or flange, pressure relief device flange, bottom outlet nozzle flange, bottom washout nozzle flange and other attachments and openings. 179.20014 Expansion capacity. 179.20015 Closures for

23、manways. 179.20016 Gauging devices, top loading and unloading devices, venting and air inlet devices. 179.20017 Bottom outlets. 179.20019 Reinforcements, when used, and appurtenances not otherwise specified. 179.20021 Closures for openings. 179.20022 Test of tanks. 179.20023 Tests of pressure relief

24、 valves. 179.20024 Stamping. 179.201 Individual specification require-ments applicable to non-pressure tank car tanks. 179.2011 Individual specification require-ments. 179.2012 Reserved 179.2013 Lined tanks. 179.2014 Material. 179.2015 Postweld heat treatment and cor-rosion resistance. 179.2016 Manw

25、ays and manway closures. 179.2018 Sampling device and thermometer well. 179.2019 Gauging device. 179.20110 Water capacity marking. 179.20111 Insulation. 179.202179.20222 Reserved 179.220 General specifications applicable to nonpressure tank car tanks consisting of an inner container supported within

26、 an outer shell (class DOT-115). 179.2201 Tanks built under these specifica-tions must meet the requirements of 179.220 and 179.221. 179.2203 Type. 179.2204 Insulation. 179.2206 Thickness of plates. 179.2207 Materials. 179.2208 Tank heads. 179.2209 Compartment tanks. 179.22010 Welding. 179.22011 Pos

27、tweld heat treatment. 179.22013 Inner container manway nozzle and cover. 179.22014 Openings in the tanks. 179.22015 Support system for inner con-tainer. 179.22016 Expansion capacity. 179.22017 Gauging devices, top loading and unloading devices, venting and air inlet devices. 179.22018 Bottom outlets

28、. 179.22020 Reinforcements, when used, and appurtenances not otherwise specified. 179.22022 Closure for openings. 179.22023 Test of tanks. 179.22024 Tests of pressure relief valves. 179.22025 Stamping. 179.22026 Stenciling. 179.221 Individual specification require-ments applicable to tank car tanks

29、con-sisting of an inner container supported within an outer shell. VerDate Mar2010 15:30 Dec 30, 2010 Jkt 220213 PO 00000 Frm 01078 Fmt 8010 Sfmt 8010 Q:49X49220213.XXX ofr150 PsN: PC150Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1069 Pipeline an

30、d Hazardous Materials Safety Admin., DOT 179.1 179.2211 Individual specification require-ments. Subpart ESpecifications for Multi-Unit Tank Car Tanks (Classes DOT-106A and 110AW) 179.300 General specifications applicable to multi-unit tank car tanks designed to be removed from car structure for fill

31、ing and emptying (Classes DOT-106A and 110AW). 179.3001 Tanks built under these specifica-tions shall meet the requirements of 179.300 and 179.301. 179.3003 Type and general requirements. 179.3004 Insulation. 179.3006 Thickness of plates. 179.3007 Materials. 179.3008 Tank heads. 179.3009 Welding. 17

32、9.30010 Postweld heat treatment. 179.30012 Protection of fittings. 179.30013 Venting, loading and unloading valves. 179.30014 Attachments not otherwise speci-fied. 179.30015 Pressure relief devices. 179.30016 Tests of tanks. 179.30017 Tests of pressure relief devices. 179.30018 Stamping. 179.30019 I

33、nspection. 179.30020 Reports. 179.301 Individual specification require-ments for multi-unit tank car tanks. 179.302 Reserved Subpart FSpecification for Cryogenic Liq-uid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A) 179.400 General specification applicable to cryogenic liquid ta

34、nk car tanks. 179.4001 General. 179.4003 Type. 179.4004 Insulation system and perform-ance standard. 179.4005 Materials. 179.4006 Bursting and buckling pressure. 179.4007 Tank heads. 179.4008 Thickness of plates. 179.4009 Stiffening rings. 179.40010 Sump or siphon bowl. 179.40011 Welding. 179.40012

35、Postweld heat treatment. 179.40013 Support system for inner tank. 179.40014 Cleaning of inner tank. 179.40015 Radioscopy. 179.40016 Access to inner tank. 179.40017 Inner tank piping. 179.40018 Test of inner tank. 179.40019 Valves and gages. 179.40020 Pressure relief devices. 179.40021 Test of pressu

36、re relief valves. 179.40022 Protective housings. 179.40023 Operating instructions. 179.40024 Stamping. 179.40025 Stenciling. 179.401 Individual specification require-ments applicable to inner tanks for cryo-genic liquid tank car tanks. 179.4011 Individual specification require-ments. 179.500 Specifi

37、cation DOT-107A *, seamless steel tank car tanks. 179.5001 Tanks built under these specifica-tions shall meet the requirements of 179.500. 179.5003 Type and general requirements. 179.5004 Thickness of wall. 179.5005 Material. 179.5006 Heat treatment. 179.5007 Physical tests. 179.5008 Openings in tan

38、ks. 179.50010 Protective housing. 179.50011 Loading and unloading valves. 179.50012 Pressure relief devices. 179.50013 Fixtures. 179.50014 Test of tanks. 179.50015 Handling of tanks failing in tests. 179.50016 Tests of pressure relief devices. 179.50017 Marking. 179.50018 Inspection and reports. APP

39、ENDIX A TO PART 179PROCEDURES FOR TANK-HEAD PUNCTURE-RESISTANCE TEST APPENDIX B TO PART 179PROCEDURES FOR SIMULATED POOL AND TORCH-FIRE TEST-ING AUTHORITY: 49 U.S.C. 51015128; 49 CFR part 1.53. SOURCE: 29 FR 18995, Dec. 29, 1964, unless otherwise noted. Redesignated at 32 FR 5606, Apr. 5, 1967. Subp

40、art AIntroduction, Approvals and Reports 179.1 General. (a) This part prescribes the specifica-tions for tanks that are to be mounted on or form part of a tank car and which are to be marked with a DOT specifica-tion. (b) Except as provided in paragraph (c) of this section, tanks to which this part

41、is applicable, must be built to the specifications prescribed in this part. (c) Tanks built to specifications pre-dating those in this part may continue in use as provided in 180.507 of this subchapter. (d) Any person who performs a func-tion prescribed in this part, shall per-form that function in

42、accordance with this part. (e) When this part requires a tank to be marked with a DOT specification VerDate Mar2010 15:30 Dec 30, 2010 Jkt 220213 PO 00000 Frm 01079 Fmt 8010 Sfmt 8010 Q:49X49220213.XXX ofr150 PsN: PC150Provided by IHSNot for ResaleNo reproduction or networking permitted without lice

43、nse from IHS-,-,-1070 49 CFR Ch. I (10110 Edition) 179.2 (for example, DOT-105A100W), compli-ance with that requirement is the re-sponsibility of the tank builder. Mark-ing the tank with the DOT specifica-tion shall be understood to certify compliance by the builder that the functions performed by t

44、he builder, as prescribed in this part, have been per-formed in compliance with this part. (f) The tank builder should inform each person to whom that tank is transferred of any specification re-quirements which have not been met at time of transfer. Amdt. 17917, 41 FR 38183, Sept. 9, 1976, as amend

45、ed by Amdt. 17950, 60 FR 49076, Sept. 21, 1995; 68 FR 48571, Aug. 14, 2003 179.2 Definitions and abbreviations. (a) The following apply in part 179: (1) AAR means Association of Amer-ican Railroads. (2) Approved means approval by the AAR Tank Car Committee. (3) ASTM means American Society for Testin

46、g and Materials. (4) Reserved (5) Definitions in part 173 of this chapter also apply. (6) F means degrees Fahrenheit. (7) NGT means National Gas Taper Threads. (8) NPT means an American Standard Taper Pipe Thread conforming to the requirements of NBS Handbook H28 (IBR, see 171.7 of this subchapter).

47、 (9) Reserved (10) Tank car facility means an entity that manufactures, repairs, inspects, tests, qualifies, or maintains a tank car to ensure that the tank car con-forms to this part and subpart F of part 180 of this subchapter, that alters the certificate of construction of the tank car, that ensu

48、res the continuing quali-fication of a tank car by performing a function prescribed in parts 179 or 180 of this subchapter, or that makes any representation indicating compliance with one or more of the requirements of parts 179 or 180 of this subchapter. (11) Tanks means tank car tanks. (b) Reserved 29 FR 18995, Dec. 20, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, and amended by Amdt. 17910, 36 FR 21344, Nov. 6, 1971; Amdt. 17950, 60 FR 49076, Sept. 21, 1995; Amdt. 17950, 61 FR 33255, June 26, 1996; 63 FR 52850, Oct. 1, 1998; 66 FR 45186, 45390, Aug. 28, 2001; 68 fR 75759, Dec. 31, 20

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