Table 151.05 to Subpart 151.05 of Part 151—Summary of Minimum Requirements

- Table 151.05 to Subpart 151.05 of Part 151—Summary of Minimum Requirements

Cargo identification 1			Hull type	Cargo segre- gation tank	Tanks			Cargo transfer		Environmental control		Fire protection required	Special requirements in 46 CFR Part 151	Electrical hazard class and group	Temp. control install.	Tank internal inspect. period—years	Cargo name	Pressure	Temp.	Type	Vent	Gauging device	Piping class	Control	Cargo tanks	Cargo handling space	a.	b.	c.	d.	e.	f.	g.	h.	i.	j.	k.	l.	m.	n.	o.	p.	q.	Acetaldehyde	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-1	Inert	Vent F	Yes	.55-1(h)	I-C	NA	G	Acetic acid	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-73 .55-1(g)	I-D	NA	G	Acetic anhydride	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-73 .55-1(g)	I-D	NA	G	Acetone cyanohydrin	Atmos.	Amb.	I	1 i i 2 i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-70(b) .50-73 .50-81	I-D	NA	G	Acetonitrile	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	Acrylic acid	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-73 .50-81 .58-1(a)	I-D	NA	G	Acrylonitrile	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.55-1(e) .50-70(a)	I-D	NA	G	Adiponitrile	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Open	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	Alkylbenzenesulfonic acid (greater than 4%)	Atmos.	Elev.	III	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-73 .58-1(e)	I-B	NA	G	Alkyl(C7-C9) nitrates	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-81 .50-86	NA	NA	G	Allyl alcohol	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	I-C	NA	G	Allyl chloride	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5	I-D	NA	G	Aluminum sulfate solution	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.58-1(e)	NA	NA	G	Aminoethylethanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(b)	NA	NA	G	Ammonia, anhydrous	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR250 p.s.i.	Restr.	II	P-2	NR	Vent F	No	.50-30 .50-32	I-D	NA	G	Ammonia, anhydrous	Atmos.	Low	II	1NA 2 i i	Ind. Gravity	PV	Restr.	II-L	G-2	NR	Vent F	No	.50-30 .50-32	I-D	.40- 1(b)(1)	8	Ammonium bisulfite solution (70% or less)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-73 .56-1(a), (b), (c)	NA	NA	G	Ammonium hydroxide (28% or less NH 3)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.56-1(a), (b), (c), (f), (g)	I-D	NA	G	Aniline	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	I-D	NA	G	Anthracene oil (Coal tar fraction)	Atmos.	Amb. Elev.	II	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	I-D	NA	G	Argon, liquefied	Press.	Low	III	1NA 2 i	Ind. Pressure	SR	Restr.	II-L	P-1	NR	Vent F	No	.40-1(a) .50-30 .50-36	NA	.40-1(a)	G	Benzene	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-60	I-D	NA	G	Benzene hydrocarbon mixtures (containing Acetylenes) (having 10% Benzene or more)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-60 .56-1(b), (d), (f), (g),	I-D	NA	G	Benzene hydrocarbon mixtures (having 10% Benzene or more)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-60	I-D	NA	G	Benzene, Toluene, Xylene mixtures (having 10% Benzene or more)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-60	I-D	NA	G	Butadiene	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-2	NR	Vent F	Yes	.50-70(a) .50-73	I-B	NA	G	Butadiene, Butylene mixtures (containing Acetylenes)	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-1	NR	Vent F	Yes	.50-30 .50-70(a) .50-73 .56-1(b), (d), (f), (g)	I-B	NA	G	Butyl acrylate (all isomers)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Butylamine (all isomers)	Atmos.	Amb.	II	1 i i 2 i i	Ind. Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.55-1(c)	I-D	NA	G	Butyl methacrylate	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Butyraldehyde (all isomers)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Open	II	G-1	NR	Vent F	Yes	.55-1(h)	I-C	NA	G	Camphor oil (light)	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	I-D	NA	G	Carbolic oil	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	NA	NA	G	Carbon dioxide, liquefied	Press.	Low	III	1NA 2 i	Ind. Pressure	SR	Restr.	I-L	P-1	NR	Vent F	No	.50-30	NA	.40-1(b)(1)	G	Carbon disulfide	Atmos.	Amb.	II	1NA 2 i i	Ind. Gravity	PV	Restr.	II	G-1	Inert	Vent F	Yes	.50-40 .50-41	I-A	NA	G	Carbon tetrachloride	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Open	II	G-1	NR	Vent N	No	No	NA	NA	G	Cashew nut shell oil (untreated)	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-2	NR	Vent N	Yes	.50-73	NA	NA	G	Caustic potash solution	Atmos.	Amb. Elev.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.50-73 .55-1(j)	NA	NA	G	Caustic soda solution	Atmos.	Amb. Elev.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.50-73 .55-1(j)	NA	NA	G	Chlorine	Press.	Amb.	I	1NA 2 i i	Ind. Pressure	SR300 p.s.i.	Indirect	I	P-2	NR	Vent F	No	.50-30 .50-31	NA	NA	3	Chlorobenzene	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Open	II	G-1	NR	Vent N	Yes	No	I-D	NA	G	Chloroform	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent F	No	No	NA	NA	G	Chlorohydrins (crude)	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5	I-D	NA	G	o-Chloronitrobenzene	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	NA	NA	G	Chlorosulfonic acid	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Open	II	G-1	NR	Vent N	No	.50-20 .50-21 .50-73	I-B	NA	G	Coal tar naphtha solvent	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-73	I-D	NA	G	Coal tar pitch (molten)	Atmos.	Elev.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-73	I-D	NA	G	Creosote	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	NA	NA	G	Cresols (all isomers)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	NA	NA	G	Cresols with less than 5% Phenol, see Cresols (all isomers)																	Cresols with 5% or more Phenol, see Phenol																	Cresylate spent caustic	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-73 .55-1(b)	NA	NA	G	Cresylic acid, sodium salt solution, see Cresylate spent caustic																	Crotonaldehyde	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(h)	I-C	NA	G	Cyclohexanone	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(a), (b)	I-D	NA	G	Cyclohexanone, Cyclohexanol mixture	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(b)	I-D	NA	G	Cyclohexylamine	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(a), (b), (c), (g)	I-D	NA	G	Cyclopentadiene, Styrene, Benzene mixture	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent F	Yes	.50-60 .56-1(b)	I-D	NA	G	iso-Decyl acrylate	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-70(a) .50-81(a), (b) .55-1(c)	NA	NA	G	Dichlorobenzene (all isomers)	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(a), (b)	I-D	NA	G	Dichlorodifluoromethane	Press.	Amb.	III	1NA 2 i	Ind. Pressure	SR	Restr.	II	P-1	NR	NR	No	No	NA	NA	G	1,1-Dichloroethane	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	2,2′-Dichloroethyl ether	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(f)	I-C	NA	G	Dichloromethane	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	No	I-D	NA	G	2,4-Dichlorophenoxy acetic acid, diethanolamine salt solution	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.56-1(a), (b), (c), (g)	NA	NA	G	2,4-Dichlorophenoxyacetic acid, dimethylamine salt solution	Atmos.	Amb. Elev.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.56-1(a), (b), (c), (g)	NA	NA	G	2,4-Dichlorophenoxyacetic acid, triisopropanolamine salt solution	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.56-1(a), (b), (c), (g)	NA	NA	G	1,1-Dichloropropane	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	1,2-Dichloropropane	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	1,3-Dichloropropane	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	1,3-Dichloropropene	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	Dichloropropene, Dichloropropane mixtures	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	2,2-Dichloropropionic acid	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	Dry	Vent F	Yes	.50-73 .58-1(e)	NA	NA	G	Diethanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	NA	NA	G	Diethylamine	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(c)	I-C	NA	G	Diethylenetriamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	NA	NA	G	Diethyl ether, see Ethyl ether																	Diisobutylamine	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(c)	I-C	NA	G	Diisopropanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	NA	NA	G	Diisopropylamine	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.55-1(c)	I-C	NA	G	N,N-Dimethylacetamide	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(b)	I-D	NA	G	Dimethylamine	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-2	NR	Vent F	Yes	.55-1(c)	I-C	NA	G	Dimethylethanolamine	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(b), (c)	I-C	NA	G	Dimethylformamide	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(e)	I-D	NA	G	1,4-Dioxane	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	Inert	Vent F	Yes	No	I-C	NA	G	Diphenylmethane diisocyanate	Atmos.	Elev.	II	1 i i 2 i	Integral Gravity	PV	Closed	I	G-1	Inert Dry	Vent F	Yes	.50-5 .56-1(a), (b)	NA	Yes	G	Di-n-propylamine	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(c)	I-C	NA	G	Dodecyl- dimethyl- amine, Tetradecyldimethylamine mixture	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.56-1(b)	NA	NA	G	Dodecyl phenol	Atmos.	Amb.	I	1 i i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-73	I-D	NA	2	Epichlorohydrin	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5	I-C	NA	G	Ethanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	I-D	NA	G	Ethyl acrylate	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Ethylamine solution (72% or less)	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.55-1(b)	I-D	NA	G	N-Ethylbutylamine	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(b)	I-C	NA	G	Ethyl chloride	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-2	NR	Vent F	Yes	No	I-D	NA	8	N-Ethylcyclohexylamine	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(b)	I-C	NA	G	Ethylene chlorohydrin	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	I-D	NA	G	Ethylene cyanohydrin	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	NA	NA	G	Ethylenediamine	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(c)	I-D	NA	G	Ethylene dibromide	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	No	No	NA	NA	G	Ethylene dichloride	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	Ethylene glycol monoalkyl ethers Including: 2-Ethoxyethanol Ethylene glycol butyl ether Ethylene glycol tert-butyl ether Ethylene glycol ethyl ether Ethylene glycol methyl ether Ethylene glycol n-propyl ether Ethylene glycol isopropyl ether	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-C	NA	G	Ethylene glycol hexyl ether	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	NA	NA	G	Ethylene glycol propyl ether	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	No	NA	NA	G	Ethylene oxide	Press.	Amb.	I	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-2	Inert	Vent F	Yes	.50-10 .50-12	I-B	.40-1(c)	4	Ethyl ether	Atmos.	Amb.	II	1NA 2 i i	Ind. Gravity	PV	Closed	II	G-1	Inert	Vent F	Yes	.50-40 .50-42	I-C	NA	G	2-Ethylhexyl acrylate	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Ethylidene norbornene	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-5 .50-74	NA	NA	G	Ethyl methacrylate	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a)	I-D	NA	G	2-Ethyl-3-propylacrolein	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-C	NA	G	Ferric chloride solutions	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-20 .50-75	I-B	NA	G	Fluorosilicic acid (30% or less)	Atmos.	Amb.	II	1 i i 2 i i	Ind. Gravity	PV	Closed	II	G-1	NR	Vent F	No	.50-20 .50-22 .50-73 .50-77	I-B	NA	4	Formaldehyde solution (37% to 50%)	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.55-1(h)	I-B	NA	G	Formic acid	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-73 .55-1(i)	I-D	NA	G	Furfural	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(h)	I-C	NA	G	Glutaraldehyde solution (50% or less)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	No	NA	NA	G	Glyoxylic acid solution (50% or less)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-73 .50-81 .58-1(e)	NA	NA	G	Hexamethylenediamine solution	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(c)	I-D	NA	G	Hexamethyleneimine	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.56-1(b), (c)	I-C	NA	G	Hydrochloric acid	Atmos.	Amb.	III	1NA 2 i i	Ind. Gravity	Open	Open	II	G-1	NR	Vent F	No	.50-20 .50-22 .50-73	I-B	NA	4	Hydrofluorosilicic acid (25% or less), see Fluorosilicic acid (30% or less)																	2-Hydroxyethyl acrylate	Atmos.	Amb.	I	1 i i 2 i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-70(a) .50-73 .50-81(a), (b)	NA	NA	G	Isoprene	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Open	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Kraft pulping liquors (free alkali content 3% or more) (including: Black, Green, or White liquor)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.50-73 .56-1(a), (c), (g)	NA	NA	G	Mesityl oxide	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	Methylacetylene, Propadiene mixture	Press.	Amb.	III	1 NA 2 i i	Ind. Pressure	SR	Restr.	II	P-2	NR	Vent F	Yes	.50-79	I-C	NA	G	Methyl acrylate	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Methylamine solution (42% or less)	Atmos.	Amb.	II	1NA 2 i i	Ind. Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.56-1(a), (b), (c), (g)	I-D	NA	G	Methyl bromide	Press.	Amb.	I	1NA 2 i i	Ind. Pressure	SR	Closed	I	P-2	NR	Vent F	Yes	.50-5	I-D	NA	2	Methyl chloride	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-2	NR	Vent F	Yes	.55-1(c)	I-D	NA	8	Methylcyclopentadiene dimer	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-B	NA	G	Methyl diethanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.56-1(b), (c)	I-C	NA	G	2-Methyl-5-ethylpyridine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(e)	I-D	NA	G	Methyl methacrylate	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	2-Methylpyridine	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(c)	I-D	NA	G	alpha-Methylstyrene	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Monochloro- difluoromethane	Press.	Amb.	III	1NA 2 i	Ind. Pressure	SR	Restr.	I	P-1	NR	NR	No	No	NA	NA	G	Morpholine	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	I-C	NA	G	Motor fuel anti-knock compounds (containing lead alkyls)	Atmos.	Amb.	I	1 i i 2 i i	Ind. Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-6 .50-73	I-D	NA	.50-6	Nitric acid (70% or less)	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.50-20 .50-73 .50-80	I-B	NA	4	Nitrobenzene	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	I-D	NA	G	Nitrogen, liquefied	Press.	Low	III	1NA 2 i	Ind. Pressure	SR	Restr.	II-L	P-1	NR	Vent F	No	.40-1(a) .50-30 .50-36	NA	.40-1(a)	G	1- or 2-Nitropropane	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-81	I-C	NA	G	o-Nitrotoluene	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	I-D	NA	G	Octyl nitrates (all isomers), see Alkyl(C7-C9) nitrates																	Oleum	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-20 .50-21 .50-73	I-B	NA	4	Pentachloroethane	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	No	NA	NA	G	1,3-Pentadiene	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81	I-D	NA	G	Perchloroethylene	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	No	NA	NA	G	Phenol	Atmos.	Amb.	I	1 i i 2 i	Integral Gravity	PV	Closed	I	G-1	NR	Vent F	Yes	.50-5 .50-73	I-D	NA	2	Phosphoric acid	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-20 .50-23 .50-73	I-B	NA	4	Phosphorus, white (elemental)	Atmos.	Elev.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	Water Pad	Vent F	Yes	.50-50	NA	NA	4-8	Phthalic anhydride (molten)	Atmos.	Elev.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	Polyethylene polyamines	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(e)	NA	NA	G	Polymethylene polyphenyl isocyanate	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Closed	II	G-1	Dry	Vent F	Yes	.55-1(e)	NA	NA	G	Potassium hydroxide solution, see Caustic potash solution																	iso-Propanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	I-D	NA	G	Propanolamine (iso-, n-)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.56-1(b), (c)	I-D	NA	G	Propionic acid	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-73 .55-1(g)	I-D	NA	G	iso-Propylamine	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.55-1(c)	I-D	NA	G	Propylene oxide	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Restr.	II	P-1	Inert	Vent F	Yes	.50-10 .50-13	I-B	NA	G	iso-Propyl ether	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	Inert	Vent F	Yes	.50-70(a)	I-D	NA	G	Pyridine	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(e)	I-D	NA	G	Sodium aluminate solution (45% or less)	Atmos.	Amb. Elev.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.50-73 .56-1(a), (b), (c)	NA	NA	G	Sodium chlorate solution (50% or less)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-73	NA	NA	G	Sodium dichromate solution (70% or less)	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	Open	Closed	II	G-1	NR	Vent N	No	.50-5(d) .50-73 .56-1(b), (c)	NA	NA	G	Sodium hydroxide solution, see Caustic soda solution																	Sodium hypochlorite solution (20% or less)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.50-73 .56-1(a), (b)	NA	NA	G	Sodium sulfide, hydrosulfide solutions (H2S 15ppm or less)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-73 .55-1(b)	NA	NA	G	Sodium sulfide, hydrosulfide solutions (H2S greater than 15ppm but less than 200ppm)	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.50-73 .55-1(b)	NA	NA	G	Sodium sulfide, hydrosulfide solutions (H2S greater than 200ppm)	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	No	.50-73 .55-1(b)	NA	NA	G	Sodium thiocyanate solution (56% or less)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.58-1(a)	NA	NA	G	Styrene monomer	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Sulfur (molten)	Atmos.	Elev.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	Vent N	Vent N	Yes	.50-55	I-C	.40- 1(f)(1)	G	Sulfur dioxide	Press.	Amb.	I	1NA 2 i i	Ind. Pressure	SR	Closed		P-2	NR	Vent F	No	.50-30 .50-84 .55-1(j)	NA	NA	2	Sulfuric acid	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-20 .50-21 .50-73	I-B	NA	4	Sulfuric acid, spent	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	No	.50-20 .50-21 .50-73	I-B	NA	4	1,1,2,2-Tetrachloroethane	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	No	NA	NA	G	Tetraethylenepentamine	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(c)	I-C	NA	G	Tetrahydrofuran	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(b)	I-C	NA	G	Toluenediamine	Atmos.	Elev.	II	1 i i 2 i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-73 .56-1(a), (b), (c), (g)	NA	NA	G	Toluene diisocyanate	Atmos.	Amb.	I	1 i i 2 i i	Integral Gravity	PV	Closed	I	G-1	Dry N 2	Vent F	Yes	.50-5 .55-1(e)	I-D	NA	G	o-Toluidine	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Closed	II	G-1	NR	Vent F	Yes	.50-5 .50-73	I-D	NA	G	1,2,4-Trichlorobenzene	Atmos.	Amb.	III	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	No	I-D	NA	G	1,1,2-Trichloroethane	Atmos.	Amb.	III	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.50-73 .56-1(a)	I-D	NA	G	Trichloroethylene	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	No	I-D	NA	G	1,2,3-Trichloropropane	Atmos.	Amb.	II	1 i i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-73 .56-1(a)	I-D	NA	G	Triethanolamine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(b)	I-C	NA	G	Triethylamine	Atmos.	Amb.	II	1 i i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.55-1(e)	I-C	NA	G	Triethylenetetramine	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	Vent N	Yes	.55-1(b)	I-C	NA	G	Triphenylborane (10% or less), Caustic soda solution	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.56-1(a), (b), (c)	NA	NA	G	Trisodium phosphate solution	Atmos.	Amb. Elev.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.50-73 .56-1(a), (c)	NA	NA	G	Urea, Ammonium nitrate solution (containing more than 2% NH 3)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	No	.56-1(b)	I-D	NA	G	Valeraldehyde (all isomers)	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	Inert	Vent F	Yes	No	I-C	NA	G	Vanillan black liquor (free alkali content 3% or more)	Atmos.	Amb.	III	1 i 2 i	Integral Gravity	Open	Open	II	G-1	NR	NR	No	.50-73 .56-1(a), (c), (g)	NA	NA	G	Vinyl acetate	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Open	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81(a), (b)	I-D	NA	G	Vinyl chloride	Press.	Amb.	II	1NA 2 i i	Ind. Pressure	SR	Closed	II	P-2	NR	Vent F	Yes	.50-30 .50-34	I-D	NA	8	Vinyl chloride	Atmos.	Low	II	1NA 2 i i	Ind. Gravity	PV	Closed	II-L	G-2	NR	Vent F	Yes	.50-30 .50-34	I-D	.40- 1(b)(1)	8	Vinylidene chloride	Atmos.	Amb.	II	1NA 2 i i	Ind. Gravity	PV	Closed	II	P-2	Padded	Vent F	Yes	.55-1(f) .50-70(a) .50-81(a), (b)	I-D	NA	G	Vinyltoluene	Atmos.	Amb.	III	1 i 2 i i	Integral Gravity	PV	Restr.	II	G-1	NR	Vent F	Yes	.50-70(a) .50-81 .56-1(a), (b), (c), (g)	I-D	NA	G	For requirements see these sections in Part 151:			.10-1	.13- 5	.15- 1	.15-5	.15- 10	.20- 1	.20- 5	.25-1	.25-2	.30		111.105 (Sub-chapter J)	.40	.04- 5

See Table 2 of Part 153 for additional cargoes permitted to be carried by tankbarge.

Terms and symbols:

Segregation—Tank—

Line 1—Segregation of cargo from surrounding waters:

i = Skin of vessel (single skin) only required. Cargo tank wall can be vessel's hull.

i i = Double skin required. Cargo tank wall cannot be vessel's hull.

Line 2—Segregation of cargo space from machinery spaces and other spaces which have or could have a source of ignition:

i = Single bulkhead only required. Tank wall can be sole separating medium.

i i = Double bulkhead required. Cofferdam, empty tank, pumproom, tank with Grade E Liquid (if compatible with cargo) is satisfactory.

Internal tank inspection—

G—Indicates cargo is subject to general provisions of 151.04-5(b).

Specific numbers in this column are changes from the general provisions.

Abbreviations used:

Tank type: Ind = Independent.

Vent:

PV = Pressure vacuum valve.

SR = Safety relief.

Gauging device: Restr. = Restricted.

General usage:

NR = No requirement.

NA = Not applicable.

1. The provisions contained in 46 CFR Part 197, subpart C, apply to liquid cargoes containing 0.5% or more benzene by volume.

[USCG-2000-7079, 65 FR 67183, Nov. 8, 2000]