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This is an image of the FMCSA logoBILINGUAL

HAZARDOUS MATERIALS

GENERAL AWARENESS

TRAINING

Volume VIII

BULK PACKAGING AND CARGO TANKS

PARTS 178 AND 180

This is an image of a cargo tank

ESPECIFICACIONES DE TANQUES DE CARGA

The format for the material contained herein was developed using Presentation

Task Force and Corel Draw, WordPerfect, and Presentations.

The editors of this material and the Federal Motor Carrier Safety Administration

make no representation as to the accuracy of the Spanish translation contained

herein. The material contained in this presentation is for general information and

training purposes only. To determine specific regulatory requirements, consult

the most current copy of 49 Code of Federal Regulations Parts 100-185.

Los redactores de este material y la Administración Federal de Carreteras no

hacen ninguna representación en cuanto a la exactitud de la traducción Española

que se contenga aqui dentro. El material que está contenido en este folleto es

para propósitos de capacitación solamente. Para requisitos específicos, favor de

leer 49 Código de Reglamentos Federales Partes 100-185.

The requirements for design specifications for cargo tanks is contained in 49

CFR Part 178. Section 178.320 contains general requirements applicable

for all cargo tanks.

49 CFR Part 178
178.320
General requirements applicable to all DOT specification cargo tank motor vehicles
178.337
MC 331 cargo tank motor vehicles
178.345
General design and construction requirements applicable to Specification DOT 406, DOT 407 & DOT 412.

 

49 CFR Part 178
178.346
Specification for DOT 406 cargo tank motor vehicle
178.347
Specification for DOT 407 cargo tank motor vehicle
178.348
Specification for DOT 412 cargo tank motor vehicle

 

The design specifications for older cargo tanks which are no longer

authorized for manufacture that are still authorized for use may be found in

the October 1, 1990 49 CFR.

The requirements for testing and inspection of cargo tanks is contained in

49 CFR '180.407. The following charts identifies the types of test required.

Cargo Tank Testing Requirements
Test or Inspection (Cargo tank specification, configuration and service)
Date First Test Req. Interval period

External Visual Inspection

All cargo tanks designed to be loaded by vacuum with full opening rear heads

09/01/1991 6 mos
All other cargo Tanks
09/01/1991 1 year

 

Cargo Tank Testing Requirements
Test or Inspection (Cargo tank specification, configuration and service)
Date First Test Req. Interval period

Internal Visual Inspection

All insulated cargo tanks except MC 330, MC 331, MC 338 ...

09/01/91
1 year
All cargo tanks transporting lading corrosive to the tank ......
09/01/91
1 year
All other cargo tanks except MC 338 .........
09/01/95
5 years

Lining Inspection

All lined cargo tanks transporting lading corrosive to the tank .....

09/01/91
1 year

Cargo Tank Testing Requirements
Test or Inspection (Cargo tank specification, configuration and service)
Date First Test Req. Interval period

Leakage Test

MC 330 and MC 331 cargo tanks in chlorine service .....

09/01/91
2 years
All other cargo tanks except MC 338 .........
09/01/91
1 year

Pressure Test
Hydrostatic or pneumatic

All cargo tanks which are insulated with no manhole or insulated and lined except MC 338

09/01/91
1 year

 

Cargo Tank Testing Requirements
Test or Inspection (Cargo tank specification, configuration and service)
Date First Test Req. Interval period

Pressure Test (cont)

All cargo tanks designed to be loaded by vacuum with full opening heads.....

09/01/92
2 years
MC 330 and MC 331 cargo tanks in chlorine service.........
09/01/92
2 years

All other cargo tanks

09/01/95
5 years

 

Cargo Tank Testing Requirements
Test or Inspection (Cargo tank specification, configuration and service)
Date First Test Req. Interval period

Thickness Test

All unlined cargo tanks transporting material corrosive to the tank except MC 338.....

09/01/92
2 years

These inspections must be performed by a person who meets the

qualifications contained in 49 CFR '180.409 to perform the appropriate

test(s)

Each cargo tank that successfully completes the required test and inspection

must be marked in accordance

with 49 CFR '180.415

Cargo Tank Inpsection and Test Marking

This is an image of a tank marked Do not load

The following is a chart identifying the required marking.

Cargo Tank Inspection and Test Marking

Cargo Tank Test Marking
Type of Test or Inspection
Marking

External Visual Inspection & Test

V
External Visual Inspection
I

Pressure Test

P
Liniing Inspection
L
Leakage Test
K
Thickness Test
T

MC-306/DOT-406

General requirements applicable to all DOT specification cargo tanks are

contained in 49 CFR 178.320. General design and construction

requirements applicable to Dot 400 series tanks may be found in 178.345.This is an image of the back of a MC-306/DOT-406 cargo tanker

The specifications for a DOT-406 cargo tank may be found in 49 CFR

178.346

Usage:

Flammable Liquids w/low vapor pressure -Primarily petroleum

products (e.g., Gasoline, diesel fuel)

Similar Tank Specifications:

MC-300, MC-301, MC-302, MC-303, MC-305, NFPA 385, CSFMDA

Design Pressure:

3-5 PSI non- ASME (American Society of Mechanical Engineers)

construction

Shell/head Materials:

** AL Aluminum (typical)

HSLA High Strength Low Alloy

MS Mild Steel

SS Stainless Steel

Venting System:

10 in. spring loaded set @ 5PSI w/ fusible vents if necessary

 

MC-307/DOT-407

This is an image of a MC-307/DOT-407 cargo tanker

General requirements applicable to all DOT specification cargo tanks are

contained in 49 CFR 178.320. General design and construction

requirements applicable to Dot 400 series tanks may be found in 178.345.

The specifications for a DOT-407 cargo tank may be found in 49 CFR

178.347.

Usage:

Flammable liquids w/moderate vapor pressure poisonous liquids

Multiple hazard class liquid materials (e.g., flammable,

corrosive and poisonous).

Similar Tank Specification:

MC-304

Design Pressure:

25 PSI min. 35 PSI (typical)

ASME design above 50 PSI for MC-307 ASME (American Society of

Mechanical Engineers) Code

stamped above 35 PSI for DOT-407

Shell/head Materials:

** SS Stainless Steel (typical)

AL Aluminum

May also be made from MS or HSLA

Venting System:

3 in. spring loaded set @ 130% of design pressure

w/ 2 ea. 3 in. fusible vents (typical)

 

MC-312/DOT-412

This is an image of the back of a MC-312/DOT-412 corrosive liquids cargo tanker

General requirements applicable to all DOT specification cargo tanks are

contained in 49 CFR 178.320. General design and construction

requirements applicable to Dot 400 series tanks may be found in 178.345.

The specifications for a DOT-407 cargo tank may be found in 49 CFR

178.348.

Usage:

Corrosive Liquids

Multiple hazard class liquid materials (e.g.,flammable, corrosive and

poisonous)

Similar Tank Specifications

MC-310, MC-311

Design Pressure

_3 PSI min. (Minimum design pressure cannot not be less than the

pressure used for unloading 49 CFR ' 178.343-1(c) 35 PSI (typical)

ASME (American Society of Mechanical Engineers) Code stamped

above 15 PSI

Shell/head Materials:

** MS Mild Steel (typical)

SS Stainless Steel

May also be made from AL and HSLA

Venting System:

13 in. spring loaded set @ 130% of design pressure w/ rupture discs

@ 150% of design pressure

Often tanks have linings - rubber, teflon, glass, etc

 

MC-331

This is an image of a MC-331cargo truck

General requirements applicable to all DOT specification cargo tanks are

contained in 49 CFR 178.320.The specifications for a MC-331 cargo tank

may be found in 49 CFR 178.337.

Usage:

Gasses (Liquified Petroleum Gas, Chlorine, Freon, Anhydrous

ammonia)

Similar Tank Specification:

MC-330, Non-specification tanks constructed to ASME standards in

accordance with 49 CFR 173.315

Design Pressure:

100 PSI min. 500 PSI Max.

265 PSI (typical)

ASME Code stamped

Shell/head Materials:

** HSLA High Strength Low Alloy

SS Stainless Steel

MS Mild Steel

Venting System:

Spring loaded

MC-338

This is animage of the back of a MC-338 cargo tanker truck

General requirements applicable to all DOT specification cargo tanks are

contained in 49 CFR 178.320. The specifications for a MC-338 cargo tank

may be found in 49 CFR 178.338.

Usage:

Cryogenic Liquids

Similar Tank Specifications:

Tanks constructed under a DOT exemption

Design Pressure:

25.3 PSIG min. 500 PSI max.

ASME construction

Shell/head Materials:

** HSLA High Strength Low Alloy

** SS Stainless Steel

MS Mild Steel

Shell/head Thickness:

varies HSLA (typical)

Venting System:

Spring loaded w/ rupture disc

Insulated or vacuum thermos bottle design

 

VACUUM TANKS

This is an image of a Vacuum Tank

Usage:

Hazardous wastes

These tanks are being converted to MC-307/312 specifications on or after

09/01/93.

Similar Tank Specifications:

MC-307/MC-312

Design Pressure:

25 PSI min. internal 35 PSI (typical)

15 PSI external

ASME Code stamped

Shell/head Materials:

** MS Mild Steel (typical)

SS Stainless Steel

Shell/head Thickness:

.187 to .250 in. MS (typical)

Venting System:

13 in. spring loaded w/ 3 in. rupture disc for corrosive service

A few of the tanks have linings - rubber, teflon, etc.

IM-101/102 Portable Tanks

This is an image of a IM-101/102  portable tank

The specifications for a IM 101 and IM 102 portable tanks may be found in

49 CFR 178.270.

Usage:

Essentially all types of liquids and designed for intermodal

transportation

Similar Tank Specifications:

MC-307/312

Design Pressure:

IM-101 - 25.4 to 100 PSIG max. (58 PSI)

IM-102 - 14.5 to 25.4 PSIG max.

ASME design not stamped

Shell/head Materials:

** SS Stainless Steel

** HSLA High Strength Low Alloy

Shell/head Thickness:

varies HSLA (typical)

Venting System:

Spring Loaded

Both insulated and non-insulated

BULK PACKAGING AND CARGO TANKS -15

DOT-51 and DOT-60 Portable Tanks

This is an image of a DOT-51 and DOT-60 portable tank

The specifications for a DOT 57 portable tank may be found in 49 CFR

178.245. The specifications for a DOT 60 portable tank may be found in 49

CFR 178.255.

Usage:

Most types of liquids

Similar Tank Specifications:

None

Design Pressure:

DOT-56 - Not less than 100psig nor more than 500psig

DOT-60 - None

Shell/head Materials:

** SS Stainless Steel

** HSLA High Strength Low Alloy

MS Mild steel

AL Aluminum

MG Magnesium Alloys

Shell/head Thickness:

varies