Code of Federal Regulations Title 46. Shipping § 46.56.04–2 Piping classification according to service

Class B and C poisons²

I

any

and

0 and above.

I-L

any

and

below 0.

II

(³)

(³)

(³)

II-L

(³)

(³)

(³)

Gases and vapors²

I

above 150

or

above 650.

I-L

above 150

and

below 0.

II

150 and below

and

0 to 650.

II-L

150 and below

and

below 0.

Liquefied flammable gases²

I

above 150

and

0 and above.¹

I-L

above 150

and

below 0.

II

150 and below

and

0 and above.

II-L

150 and below

and

below 0.

Molten sulphur

I

above 225

or

above 330.

II

225 and below

and

330 and below.

Cargo liquids Grades A through D²

I

above 225

or

above 150.

I-L

above 225

and

below 0.

II

225 and below

and

0 to 150.

II-L

225 and below

and

below 0.

Cargo liquids Grade E

I

above 225

or

above 400.

I-L

above 225

and

below 0.

II

225 and below

and

0 to 400.

II-L

225 and below

and

below 0.

Water

I

above 225

or

above 350.

II

225 and below

and

350 and below.

Fuels (Bunker, diesel, gasoline, etc.)

I

above 150

or

above 150.

II

150 and below

and

150 and below.

Lubricating oil

I

above 225

or

above 400.

II

225 and below

and

400 and below.

Asphalt

I

above 225

or

above 400.

II

225 and below

and

400 and below.

Heat transfer oil

I

above 225

or

above 400.

II

225 and below

and

400 and below.

Hydraulic fluid

I

above 225

or

above 400.

II

225 and below

and

400 and below.

Flammable or combustible dangerous cargoes.

Refer to specific requirements of part 40 of this chapter.

Other dangerous cargoes.

Refer to specific requirements of part 98 of this chapter.