Code of Federal Regulations Title 49. Transportation § 49.179.500–18 Inspection and reports

(a) Before a tank car is placed in service, the party assembling the completed car shall furnish to car owner, Bureau of Explosives, and the Secretary, Mechanical Division, Association of American Railroads, a report in proper form certifying that tanks and their equipment comply with all the requirements of this specification and including information as to serial numbers, dates of tests, and ownership marks on tanks mounted on car structure.

(b) Purchaser of tanks shall provide for inspection by a competent inspector as follows:

(c) Inspector's report required herein shall be in the following form:

(Place) __________

(Date) __________

Steel Tanks

It is hereby certified that drawings were submitted for these tanks under AAR Application for Approval ______ and approved by the AAR Committee on Tank Cars under date of ______.

Built for __________ Company

Location at __________

Built by __________ Company

Location at __________

Consigned to ________ Company

Location at __________

Quantity __________

Length (inches) __________

Outside diameter (inches) __________

Marks stamped into tank as required in § 179.500–17 are:

DOT–107A* * * *

Note 1:  The marked test pressure substituted for the * * * * on each tank is shown on Record of General Data on Tanks attached hereto.

Serial numbers ___ to ___ inclusive

Inspector's mark __________

Owner's mark __________

Test date __________

Water capacity (see Record of Hydrostatic Tests).

Tare weights (yes or no)(see Record of Hydrostatic Tests).

These tanks were made by process of __________

Steel used was identified as indicated by the attached list showing the serial number of each tank, followed by the heat number.

Steel used was verified as to chemical analysis and record thereof is attached hereto. Heat numbers were stamped into metal. All material was inspected and each tank was inspected both before and after closing in ends;  all material accepted was found free from seams, cracks, laminations, and other defects which might prove injurious to strength of tank. Processes of manufacture and heat-treatment of tanks were witnessed and found to be efficient and satisfactory.

Before necking-down ends, each tank was measured at each location prescribed in § 179.500–4(c) and minimum wall thickness in inches at each location was recorded;  maximum inside diameter in inches at each location was recorded;  value of D in inches at each location was calculated and recorded;  maximum fiber stress in wall at location showing larger value for

(D ² +d²)/(D ² -d²)

was calculated for 7/10 the marked test pressure and recorded. Calculations were made by the formula:

S=[0.7P(D² −d²)/(D² +d²)]

Hydrostatic tests, tensile test of material, and other tests as prescribed in this specification, were made in the presence of the inspector, and all material and tanks accepted were found to be in compliance with the requirements of this specification. Records thereof are attached hereto.

I hereby certify that all of these tanks proved satisfactory in every way and comply with the requirements of Department of Transportation Specification No. 107A* * * *.

(Signed) __________

(Place) __________

(Date) __________

Record of Chemical Analysis of Steel for Tanks

Numbered ___ to ___ inclusive

Size ___ inches outside diameter by ___ inches long

Built by __________ Company

For _______________ Company

	Tanks rep-	Chemical analysis
	resented	___________________________________________________________
Heat No.	(serial Nos.)	C	Mn	P	S	Si	Ni	Cr	Mo

These analyses were made by

(Signed) __________

(Place) __________

(Date) __________

Record of Chemical Analysis of Steel in Tanks

Numbered ___ to ___ inclusive

Size ___ inches outside by ___ inches long

Built by __________ Company

For _______________ Company

Heat No.	Tanks rep- resented by test (serial Nos.)	Elastic limit (psi)	Tensile strength (psi)	Elon gation (percent in 2 inches)	Reduc tion of area (percent)

	(Signed) __________________________________________________________
	(Place) ___________________________________________________________
	(Date) ____________________________________________________________

RECORD OF HYDROSTATIC TESTS ON TANKS
Numbered․․․․․․․․․․․․․․․․․․․․․․․․․․․․	to․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	inclusive
Size․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	inches outside by ․․․․․․․․․․․․․․․․․․․․․․․	․․․․․․․	inches long
Built by․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	Company
For․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	Company

Serial Nos. of tanks	Actual test pressure (psig)	Total expansion (cubic cm)	Permanent expansion (cubic cm)	Percent ratio of permanent expansion to total expansion1	Tare weight (pounds)2	Capacity in pounds of water at 60° F

¹ If tests are made by method involving measurement of amount of liquid forced into tank by test pressure, then the basic data on which calculations are made, such as pump factors, temperature of liquid, coefficient of compressibility of liquid, etc., must also be given.

² Do not include protective housing, but state whether with or without valves.

(Signed) ______________________________________	Date ____________________________________________
(Place) _______________________________________

RECORD OF GENERAL DATA ON TANKS
Numbered․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	to․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	inclusive
Built by․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	Company
For․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․	Company

Data obtained as prescribed in § 179.500-4(c)
Marked end of tank	Other end of tank
Serial No. of tank	(t) Min. thickness of wall in inches	(d) Max. inside diameter in inches	(D) Calculated value ofD in inches= d+2t	(t) Minimum thickness of wall in inches	(d) Maximum inside diameter in inches	(D) calculated value of D in inches = d+2t	Larger value of the factor D2+d2/ D2-d2	(S) Calculated fiber stress in psi at 7/10 marked test pressure	Marked test pressure in psi stamped in tank	Minimum tensile strength of material in psi recorded
(Signed) ______________________________