Coast Guard, DHS Pt. 151, Subpt. 151.05, Table 151.05 Years Spect

Coast Guard, DHS Pt. 151, Subpt. 151.05, Table 151.05 years spect. Tank in- period— ternal in- Temp. install. control I-B NA G I-D NA G I-D NA G I-D NA G I-D NA G I-C NA G I-D NA G NA G group hazard

Electrical class and Part 151 in 46 CFR Special requirements .55-1(g) .... .50-70(b) .. .50-73 ...... 50-81 ...... 50-73 ...... 50-81 ...... 58-1(a) .... .50-70(a) .. .50-73 ...... 55-1(g) .... .58-1(e) .... .50-86 ...... EQUIREMENTS R quired protec- tion re- space Cargo handling INIMUM M control Fire tanks Control Cargo UMMARY OF class Piping 151—S ART device Gauging P PV Restr. .50-73...... II F G-1 Yes NR Vent PV Closed I G-1 F .50-5...... NR Yes Vent PV Closed I G-1 F .50-5...... NR Yes Vent PV Open II G-1 NR Vent F Yes No...... PV Open F Yes II G-1 NR Vent I-D NA G PV Restr. No...... II F G-1 Yes NR Vent PV Restr. .50-70(a).. II F I-D G-1 Yes NA NR Vent G PV Closed II G-1 F .55-1(e).... NR Yes Vent SR Restr. .55-1(h)....F II Yes P-1 Inert Vent I-C NA G OF Open Open II G-1 NR Vent N Yes .50-73...... Open N Yes II G-1 Vent NR .50-73...... Open N Yes II G-1 Vent NR .50-81...... Open N Yes II G-1 Vent NR Tanks Cargo transfer Environmental transfer Tanks Cargo 151.05 sure. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Ind. Pres- Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral UBPART 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii S tank Cargo gation segre- TO Hull type 151.05 Temp. Type Vent Temp. Type ABLE T

1 sure Pres- Atmos. Elev. III 1 i i a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification greater than ). Cargo name acid ( 4% Acetaldehyde ...... Press. Amb. Acetic acid II ...... 1NA Atmos. Amb. Acetic anhydride ...... III Atmos. Amb. Acetone cyanohydrin .. 1 III i Atmos. Amb. 1 i I Acetonitrile ...... Atmos. Amb. 1 i i III Acrylic acid ...... Atmos. 1 i Amb. III Acrylonitrile ...... Atmos. Amb. 1 i i II Adiponitrile ...... Atmos. Amb. 1 i i II Alkylbenzenesulfonic 1 i i Alkyl(C7–C9) nitrates Atmos. Amb. Allyl alcohol ...... Atmos. III Amb. 1 i I 1 i i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00101 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Pt. 151, Subpt. 151.05, Table 151.05 46 CFR Ch. I (10–1–12 Edition) 8 years spect. Tank in- period— ternal in- 1(b)(1) Temp. install. control I-D NA G I-D NA G I-D NA G I-D .40- I-D NA G NA .40-1(a) G NA G group hazard Electrical class and (b), (c). (d), (f), (g),. (b), (c), (f), (g). Part 151 in 46 CFR Special requirements .50-32 ...... 50-32 ...... 50-73 ...... 56-1(a), .56-1(b), .50-30 ...... 50-36 ...... quired protec- tion re- space Cargo handling control Fire tanks Control Cargo class Piping Restr. II P-2 NR Vent F No .50-30...... No F Vent NR P-2 Restr. II device Gauging PV Closed I G-1 F .50-5...... NR Yes Vent PV Closed II G-1 F .50-60...... NR Yes Vent I-D NA G PV Closed II G-1 F .50-60...... NR Yes Vent PV Restr. .56-1(a), II F G-1 No NR Vent PV Closed I G-1 F .50-5...... NR Yes Vent I-D NA G SR Restr. .40-1(a).... II-L F P-1 No NR Vent p.s.i. Open Open II G-1 NR Vent N Yes .55-1(b)....Open N Yes II G-1 Vent NR NA NA G Open Open II G-1 NR Vent N Yes .58-1(e)....Open N Yes II G-1 Vent NR NA NA G .50-73...... Open N No II G-1 Vent NR No...... Open N Yes II G-1 Vent NR I-D NA G SR250 Tanks Cargo transfer Environmental transfer Tanks Cargo Gravity. Gravity. Gravity. sure. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. sure. Integral Integral Ind. Gravity PV Integral Restr. II-L G-2 NR Vent F Integral No .50-30 ...... Integral Ind. Pres- Integral Integral Integral Integral Ind. Pres- 2i 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii tank Cargo gation segre- II 1 i i Hull type Elev. Temp. Type Vent Temp. Type

1 sure Pres- Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. Atmos. Amb. III 1 i Atmos. Amb. III 1 i ). 3 ...... Low III 1NA Press. having a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification liquefied ). Cargo name tion. ne. solution (70% or less). (28% or less NH tar fraction). mixtures (containing Acetylenes) ( 10% Benzene or more Allyl chloride ...... Atmos. Amb. Aluminum sulfate solu- I Aminoethylethanolami- 1 i i Ammonia, anhydrous Press. Amb. Ammonia, anhydrous Atmos. II Ammonium bisulfite Low 1NA II Ammonium hydroxide 1NA Aniline ...... Atmos. Amb. Anthracene oil (Coal I 1 i i Argon, Benzene ...... Atmos. Amb. III Benzene hydrocarbon 1 i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00102 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Coast Guard, DHS Pt. 151, Subpt. 151.05, Table 151.05 G 1(b)(1) I-B NA G I-A NA G I-B NA G I-D NA G I-D NA G NA G (b). (b). (d), (f), (g). .50-73 ...... 50-81(a), .50-81(a), .50-73 ...... 50-41 ...... 50-70(a) .. .50-73 ...... 56-1(b), PV Restr. .50-70(a).. II F G-1 Yes NR Vent PV Restr. .50-70(a).. II F G-1 Yes NR Vent .55-1(h)....PV Open F Yes II G-1 NR Vent I-C NA G PV Closed II G-1 F .50-60...... NR Yes Vent I-D NA G PV Closed I G-1 F .50-5...... NR Yes Vent No...... PV Open N No II G-1 Vent NR NA NA G PV Closed II G-1 F .50-60...... NR Yes Vent I-D NA G SR Restr. .50-30...... II F P-1 Yes NR Vent SR Restr. .50-70(a).. II F P-2 Yes NR Vent SR Restr. .50-30...... I-L F P-1 No NR Vent NA .40- Open Open II G-1 NR Vent N Yes No...... Open N Yes II G-1 Vent NR I-D NA G Gravity. sure. Gravity. Gravity. Gravity. Gravity. Gravity. sure. Gravity. sure. Gravity. Integral Integral Ind. Pres- Integral Ind. Gravity PV Integral Closed II Integral G-1 Integral NR Vent F Yes .55-1(c) ....Ind. Pres- I-D Ind. Gravity NA PV Integral Restr. G II G-1 Inert Vent F Yes .50-40 ...... Ind. Pres- Integral 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii Press. Low III 1NA Press. Amb. II 1NA Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. II 1 i i Atmos. Amb. III 1 i ) ...... Atmos. Amb. II 1 i i lique- ). light ). having containing ). . having 10% Ben- 10% Benzene or more Acetylenes mixtures ( lene mixtures ( zene or more mixtures ( mers). mers). mers). fied Benzene hydrocarbon Benzene, Toluene, Xy- Butadiene ...... Press. Amb. Butadiene, Butylene II 1NA Butyl acrylate (all iso- Butylamine (all iso- Butyl methacrylate ...... Atmos. Amb. Butyraldehyde (all iso- III Camphor oil ( 1 i Carbolic oil ...... Atmos. Amb. Carbon dioxide, I Carbon disulfide ...... 1 Atmos. i i Amb. Carbon tetrachloride ... Atmos. II Amb. 1NA III 1 i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00103 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Pt. 151, Subpt. 151.05, Table 151.05 46 CFR Ch. I (10–1–12 Edition) years spect. Tank in- period— ternal in- Temp. install. control I-B NA G NA 3 NA G NA G NA G group hazard Electrical class and Part 151 in 46 CFR Special requirements .50-31 ...... 50-73 ...... 50-21 ...... 50-73 ...... 55-1(j) ...... 55-1(j) ..... quired protec- tion re- space Cargo handling control Fire tanks Control Cargo class Piping Indirect I P-2 NR Vent F No .50-30...... No F Vent NR P-2 Indirect I device Gauging PV Closed I G-1 F .50-5...... NR Yes Vent I-D NA G PV Restr. .50-73...... II N G-2 Yes NR Vent NA NA G No...... PV Open N Yes II G-1 Vent NR I-D NA G .50-20...... PV Open N No II G-1 Vent NR PV Restr. .50-73...... II F G-1 Yes NR Vent PV Restr. .50-73...... II F I-D G-1 Yes NR NA Vent G I-D NA G PV Closed I G-1 F .50-5...... NR Yes Vent p.s.i. Open II G-1 NR .50-73...... NR No No...... Open F No II G-1 NR Vent NA NA G No...... Open N Yes II G-1 Vent NR No...... Open NA N Yes NA II G-1 Vent NR G NA NA G Open II G-1 NR .50-73...... NR No SR300 Tanks Cargo transfer Environmental transfer Tanks Cargo Gravity. Gravity. Gravity. sure. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Ind. Pres- Integral Integral Integral Integral Integral Integral Integral 2i 2i 2i 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii tank Cargo gation segre- III 1 i III 1 i Hull type Elev. Elev. Temp. Type Vent Temp. Type

1 sure Pres- Atmos. Amb. III 1 i i Atmos. Amb. Atmos. Amb. III 1 i ) Atmos. Amb. I 1 i i crude a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification Cargo name (untreated). tion. vent. Cashew nut shell oil Caustic potash solu- Caustic soda solution Atmos. Amb. Chlorine ...... Press. Amb. Chlorobenzene I ...... Atmos. Amb. 1NA III Chloroform ...... Atmos. Amb. 1 i III Chlorohydrins ( 1 i o-Chloronitrobenzene Atmos. Amb. Chlorosulfonic acid I ..... Atmos. 1 i Amb. i Coal tar naphtha sol- III 1 iCoal tar pitch (molten) i Atmos. Elev. Creosote ...... III Atmos. Amb. III Cresols (all isomers) .. 1 i i Atmos. 1 i Amb. III 1 i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00104 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Coast Guard, DHS Pt. 151, Subpt. 151.05, Table 151.05 I-D NA G I-D NA G I-D NA G I-D NA G NA G NA G (b). (b), (c), (g). (b). (b). .55-1(b) .... .56-1(b) .... .50-81(a), .55-1(c) .... PV Restr. .55-1(h).... II F G-1 Yes NR PV Restr. Vent .56-1(a), II F G-1 I-C Yes NR NA Vent G PV Restr. .56-1(a), II F G-1 Yes NR Vent PV Restr. .56-1(a), II F G-1 Yes NR Vent PV Restr. No...... II F G-1 Yes NR PV Restr. Vent .55-1(f)..... II F G-1 I-D Yes NR NA Vent G I-C NA G PV Restr. .56-1(b).... II F G-1 Yes NR Vent I-D NA G SR Restr. II P-1 NR No...... NR No NA NA G Open Open II G-1 NR Vent N Yes .50-70(a).. Open N Yes II G-1 Vent NR Open Open II G-1 NR Vent N No .50-73...... Open N No II G-1 Vent NR .50-60...... Open F Yes II G-1 NR Vent Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. sure. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Integral Integral Ind. Pres- Integral Integral Integral 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii Press. Amb. III 1NA Atmos. Amb. III 1 i i Atmos. Amb. III 1 i i Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. II 1 i i see -Dichloroethyl ′ 5% Phenol, see Cresols (all isomers). more Phenol, see Phenol. tic. salt solution, Cresylate spent caustic. Cyclohexanol mixture. rene, Benzene mixture. isomers). methane. ether. Cresols with less than Cresols with 5% or Cresylate spent caus- Cresylic acid, sodium Crotonaldehyde ...... Atmos. Amb. II Cyclohexanone ...... Atmos. Amb. 1 i i III Cyclohexanone, 1 i Cyclohexylamine ...... Atmos. Amb. III Cyclopentadiene, Sty- 1 i i iso-Decyl acrylate ...... Atmos. Amb. III Dichlorobenzene (all 1 i Dichlorodifluoro- 1,1-Dichloroethane ..... Atmos. Amb. III 2,2 1 i i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00105 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Pt. 151, Subpt. 151.05, Table 151.05 46 CFR Ch. I (10–1–12 Edition) years spect. Tank in- period— ternal in- Temp. install. control NA G NA G NA G NA G group hazard Electrical class and (b), (c), (g). (b), (c), (g). (b), (c), (g). Part 151 in 46 CFR Special requirements .58-1(e) .... quired protec- tion re- space Cargo handling control Fire tanks Control Cargo class Piping device Gauging PV Restr. No...... II F G-1 Yes NR Vent PV Closed I-D II G-1 NA F No...... NR PV Restr. Yes Vent G .50-73...... II F G-1 Yes Dry Vent I-D NA G PV Restr. No...... II F G-1 No NR Vent I-D NA G PV Restr. .56-1(a), II F G-1 No NR Vent PV Restr. No...... II F G-1 Yes NR Vent PV Restr. No...... II F I-D G-1 Yes NA NR Vent PV Restr. No...... II F G I-D G-1 Yes NA NR Vent G I-D NA G Open Open II G-1 NR Vent N No .56-1(a), Open N No II G-1 Vent NR .56-1(a), Open N No II G-1 Vent NR .55-1(c)....Open N Yes II G-1 Vent NR NA NA G Tanks Cargo transfer Environmental transfer Tanks Cargo Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral 2i 2i 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii tank Cargo gation segre- III 1 i Hull type Elev. Temp. Type Vent Temp. Type

1 sure Pres- Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. II 1 i i Atmos. Amb. Atmos. Amb. II 1 i i a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification Cargo name acetic acid, diethanolamine salt solution. Dichlorophenoxyac- etic acid, dimethylamine salt solution. Dichlorophenoxyac- etic acid, triisopropanolamine salt solution. Dichloropropane mixtures. acid. Dichloromethane ...... Atmos. Amb. III 2,4-Dichlorophenoxy 1 i 2,4- 2,4- 1,1-Dichloropropane ... Atmos. Amb. III 1,2-Dichloropropane ... Atmos. Amb. 1 i III 1,3-Dichloropropane ... Atmos. Amb. 1 i III 1,3-Dichloropropene ... Atmos. Amb. 1 i II Dichloropropene, 1 i i 2,2-Dichloropropionic Diethanolamine ...... Atmos. Amb. III 1 i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00106 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Coast Guard, DHS Pt. 151, Subpt. 151.05, Table 151.05 I-C NA G NA Yes G (c). (b). .56-1(a), Vent F Yes .50-5 ...... Dry PV Restr. .55-1(c).... II F G-1 Yes NR Vent I-C NA PV Closed II G G-1 PV Restr. F .55-1(c).....56-1(b).... NR Yes II F Vent G-1 Yes NR Vent I-C I-D NA PV Restr. NA .56-1(b), II F G-1 G Yes G NR PV Restr. Vent .55-1(e).... II F G-1 Yes NR PV Closed Vent II I-D G-1 NA PV Closed F No...... Inert Yes Vent G I G-1 Inert PV Restr. I-C .55-1(c).... II NA F G-1 Yes NR Vent G I-C NA G PV Closed I G-1 F .50-5...... NR Yes Vent I-C NA G PV Restr. .55-1(c).... II F G-1 Yes NR Vent I-C NA G SR Restr. .55-1(c).... II F P-2 Yes NR Vent I-C NA G Open Open II G-1 NR Vent N Yes .55-1(c)....Open N Yes II G-1 Vent NR NA NA G Open Open II G-1 NR Vent N Yes .55-1(c)....Open N Yes II G-1 Vent NR NA NA G .56-1(b)....Open N Yes II G-1 Vent NR NA NA .50-73...... Open N Yes G II G-1 Vent NR I-D NA 2 Gravity. Gravity. Gravity. Gravity. sure. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Integral Integral Integral Ind. Pres- Integral Integral Integral Integral Integral Integral 2i 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii Atmos. Amb. III 1 i i Atmos. Amb. III 1 i Atmos. Elev. II 1 i i see Ethyl ether. Dimethylacetamide. diisocyanate. amine, Tetradecyldimethyla- mine mixture. Diethylamine ...... Atmos. Amb. III Diethylenetriamine ...... Atmos. Amb. 1 i i III Diethyl ether, 1 i Diisobutylamine ...... Atmos. Amb. III Diisopropanolamine .... Atmos. Amb. 1 i i III Diisopropylamine ...... Atmos. Amb. 1 i II N,N- 1 i i Dimethylamine ...... Press. Amb. Amb. Dimethylethanolamine Atmos. II III 1NA 1 i Dimethylformamide .... Atmos. Amb. III 1,4-Dioxane ...... Atmos. Amb. 1 i i II Diphenylmethane 1 i i Di-n-propylamine ...... Atmos. Amb. II Dodecyl- dimethyl- 1 i i Dodecyl phenol ...... Atmos. Amb. Epichlorohydrin ...... Atmos. Amb. I I 1 i 1 i i i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00107 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Pt. 151, Subpt. 151.05, Table 151.05 46 CFR Ch. I (10–1–12 Edition) years spect. Tank in- period— ternal in- Temp. install. control I-D NA G I-D NA G group hazard Electrical class and (b). Part 151 in 46 CFR Special requirements .50-81(a), .50-73 ...... quired protec- tion re- space Cargo handling control Fire tanks Control Cargo class Piping device Gauging PV Restr. .50-70(a).. II F G-1 Yes NR Vent PV Closed II G-1 PV Restr. F .55-1(b).....55-1(b).... NR Yes II Vent F G-1 Yes NR Vent I-D I-C NA NA PV Restr. .55-1(b).... II G F G-1 Yes G NR Vent I-C NA G PV Restr. .55-1(c).... II F G-1 Yes NR Vent I-D NA PV Restr. No...... II F G G-1 Yes NR Vent I-D NA G PV Closed II G-1 F NR No...... Vent No NA NA G PV Closed I G-1 F .50-5...... NR Yes Vent SR Restr. No...... II F P-2 Yes NR Vent I-D NA 8 Open Open II G-1 NR Vent N Yes No...... Open N Yes II G-1 Vent NR NA NA G Open Open II G-1 NR Vent N Yes .55-1(c)....Open N Yes II G-1 Vent NR I-D NA G Tanks Cargo transfer Environmental transfer Tanks Cargo Gravity. Gravity. Gravity. sure. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Ind. Pres- Integral Integral Integral Integral Integral 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii tank Cargo gation segre- Hull type Temp. Type Vent Temp. Type

1 sure Pres- Atmos. Amb. II 1 i i Atmos. Amb. III 1 i i a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification Cargo name (72% or less). Ethylcyclohexylami- ne. Ethanolamine ...... Atmos. Amb. III Ethyl acrylate ...... Atmos. 1 i Amb. Ethylamine solution III N-Ethylbutylamine 1 i ...... Atmos. Amb. III Ethyl chloride ...... 1 i Press. i Amb. N- II 1NA Ethylene chlorohydrin Atmos. Amb. Ethylene cyanohydrin Atmos. I Amb. Ethylenediamine ...... Atmos. Amb. 1 III i i III Ethylene dibromide .... 1 i Atmos. 1 i Amb. Ethylene dichloride ..... Atmos. II Amb. 1 III i i 1 i i

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00108 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Coast Guard, DHS Pt. 151, Subpt. 151.05, Table 151.05 I-B .40-1(c) 4 I-B NA G I-B NA 4 I-C NA G I-D NA G NA G (b). .50-12 ...... 50-74 ...... 50-42 ...... 50-81(a), .50-75 ...... 50-22 ...... 50-73 ...... 50-77 ...... PV Restr. No...... II F G-1 Yes NR Vent I-C NA G PV Closed II G-1 PV Restr. F .50-5...... 50-70(a).. NR Yes II Vent F G-1 Yes NR Vent PV Restr. No...... II F I-D G-1 Yes NR NA Vent G I-C NA G SR Restr. .50-10...... F II Yes P-2 Inert Vent Open Open II G-1 NR Vent N Yes No...... Open N Yes II G-1 Vent NR No...... Open NA N Yes NA II G-1 Vent NR G NA NA G .50-70(a).. Open N Yes II G-1 Vent NR .50-20...... Open N No II G-1 Vent NR Gravity. Gravity. Gravity. sure. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Ind. Pres- Ind. Gravity PV Integral Closed II Integral G-1 Integral Inert Vent F Yes .50-40 ...... Ind. Gravity PV Closed II G-1 NR Vent F No .50-20 ...... 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii Atmos. Amb. III 1 i Atmos. Amb. II 1 i i Atmos. Amb. III Atmos. Amb. 1 i III 1 i Atmos. Amb. III Atmos. Amb. 1 i III 1 i i monoalkyl ethers. ether butyl ether ether ether propyl ether propyl ether ether. ether. propylacrolein. tions. or less). Ethylene glycol Including: 2-Ethoxyethanol Ethylene glycol butyl Ethylene glycol tert- Ethylene glycol ethyl Ethylene glycol methyl Ethylene glycol n- Ethylene glycol iso- Ethylene glycol hexyl Ethylene glycol propyl Ethylene oxide ...... Press. Amb. Ethyl ether ...... Atmos. I Amb. 2-Ethylhexyl acrylate .. 1NA Atmos. II Amb. 1NA Ethylidene norbornene III Atmos. Amb. Ethyl methacrylate 1 ...... i II Atmos. Amb. 2-Ethyl-3- 1 i i III Ferric chloride solu- 1 i i Fluorosilicic acid (30%

VerDate Mar<15>2010 16:54 Nov 05, 2012 Jkt 226200 PO 00000 Frm 00109 Fmt 8010 Sfmt 8002 Q:\46\46V5.TXT ofr150 PsN: PC150 Pt. 151, Subpt. 151.05, Table 151.05 46 CFR Ch. I (10–1–12 Edition) years spect. Tank in- period— ternal in- Temp. install. control I-B NA 4 I-D NA G I-D NA G I-C NA G NA G NA G group hazard Electrical class and (b). (b). (c). Part 151 in 46 CFR Special requirements .50-70(a) .. .50-73 ...... 50-81(a), .50-81(a), .50-81 ...... 58-1(e) .... .50-22 ...... 50-73 ...... 55-1(i) ..... quired protec- tion re- space Cargo handling control Fire tanks Control Cargo class Piping device Gauging PV Restr. .55-1(h).... II F G-1 No NR Vent I-B NA G PV Restr. .55-1(c).... II F G-1 Yes NR Vent I-D NA G PV Closed I G-1 F .50-5...... NR Yes Vent .50-70(a).. PV Open F Yes II G-1 NR Vent PV Restr. .50-73...... II F G-1 Yes NR Vent PV Restr. .55-1(h).... II F G-1 Yes NR Vent I-C NA G PV Restr. .56-1(b), II F G-1 Yes NR Vent Open Open II G-1 NR Vent N No No...... Open N No II G-1 Vent NR .50-73...... Open N NA Yes II G-1 NA Vent NR G Tanks Cargo transfer Environmental transfer Tanks Cargo Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Integral Integral Integral Integral Ind. Gravity Open Open II G-1 NR Vent F No .50-20 ...... Integral Integral Integral Integral 2i 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii tank Cargo gation segre- Hull type Temp. Type Vent Temp. Type

1 sure Pres- Atmos. Amb. III 1 i Atmos. Amb. I 1 i i Atmos. Amb. III 1 i i Atmos. Amb. III 1 i Atmos. Amb. III 1 i a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification Cargo name (37% to 50%). tion (50% or less). (50% or less). e solution. (25% or less), see Fluorosilicic acid (30% or less). late. Formaldehyde solution Formic acid ...... Atmos. Amb. Furfural ...... III Atmos. Amb. III Glutaraldehyde solu- 1 i i 1 i i Glyoxylic acid solution Hexamethylenediamin- Hexamethyleneimine .. Atmos. Amb. II Hydrochloric acid ...... Atmos. 1 i i Amb. Hydrofluorosilicic acid III 1NA 2-Hydroxyethyl acry- Isoprene ...... Atmos. Amb. III 1 i

100

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1 sure Pres- Atmos. Amb. I 1 i i Atmos. Amb. II 1 i i ...... Press. Low III 1NA a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification liquefied Cargo name compounds (containing lead alkyls). less). mers), see Alkyl(C7–C9) nitrates. Morpholine ...... Atmos. Amb. III Motor fuel anti-knock 1 i Nitric acid (70% or Nitrobenzene ...... Atmos. Amb. Nitrogen, I 1 i i 1- or 2-Nitropropane ... Atmos. Amb. o-Nitrotoluene ...... III Atmos. Amb. Octyl nitrates (all iso- I 1 i i 1 i i Oleum ...... Atmos. Amb. III Pentachloroethane 1 ..... i i Atmos. Amb. III 1,3-Pentadiene ...... Atmos. Amb. 1 i i III Perchloroethylene ...... Atmos. Amb. 1 i III 1 i

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1 sure Pres- Atmos. Amb. III Atmos. Amb. 1 i II 1 i i Atmos. Amb. II 1 i i Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. III 1 i i ...... Atmos. Amb. III 1 i Caustic a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification see monomer S 15ppm or less). S greater than S greater than Cargo name 2 2 2 tion (50% or less). solution (70% or less). lution, solution (20% or less). sulfide solutions (H sulfide solutions (H sulfide solutions (H solution (56% or less). 15ppm but less than 200ppm). 200ppm). soda solution. Sodium chlorate solu- Sodium dichromate Sodium hydroxide so- Sodium hypochlorite Sodium sulfide, hydro- Sodium sulfide, hydro- Sodium sulfide, hydro- Sodium thiocyanate Styrene Sulfur (molten) ...... Atmos. Elev. III 1 i

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2 N PV Restr. .50-70(b).. II F G-1 Yes NR Vent I-C NA G PV Closed I G-1 PV Closed Dry II G-1 PV Restr. F .50-5...... No...... NR Yes II Vent F G-1 Yes NR Vent I-D NA G PV Restr. .55-1(e).... II F G-1 Yes NR Vent I-C NA G PV Closed II G-1 F .50-73...... NR Yes Vent PV Restr. .50-73...... II F G-1 No NR Vent PV Restr. .50-73...... II F G-1 Yes NR Vent PV Restr. No...... II F G-1 No NR Vent NA NA G PV Restr. No...... II F G-1 No NR Vent I-D NA G SR Closed ...... SR Closed P-2 F .50-30...... NR Vent No Open Open II G-1 NR Vent N No .50-20...... Open N No II G-1 Vent NR .50-20...... Open N No II G-1 Vent NR .55-1(c)....Open N Yes II G-1 Vent NR I-C NA G .55-1(b)....Open N Yes II G-1 Vent NR I-C NA G sure. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Gravity. Integral Ind. Pres- Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral Integral 2i 2i 2i 2i 2i 2i 2i 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii 2ii Atmos. Amb. III 1 i Atmos. Amb. III 1 i i Tetrachloroethane. ne. Sulfur dioxide ...... Press. Amb. Sulfuric acid ...... I Atmos. Amb. 1NA Sulfuric acid, spent III ..... Atmos. Amb. 1 i i 1,1,2,2- III 1 iTetraethylenepentami- i Tetrahydrofuran ...... Atmos. Amb. III Toluenediamine ...... Atmos. Elev. 1 i II 1 i i Toluene diisocyanate Atmos. Amb. o-Toluidine ...... Atmos. Amb. I II 1,2,4-Trichlorobenzene Atmos. Amb. III 1 1 i i i i 1,1,2-Trichloroethane 1 i i Atmos. Amb. III Trichloroethylene ...... Atmos. Amb. 1 i i III Amb. 1,2,3-Trichloropropane Atmos. II 1 i Triethanolamine 1 i ...... i Atmos. Amb. III Triethylamine ...... Atmos. Amb. 1 i II 1 i i

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1 sure Pres- Atmos. Amb. III 1 i Atmos. Amb. Atmos. Amb. III 1 i Atmos. Amb. III 1 i Atmos. Amb. III 1 i ). a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. p. o. n. m. l. k. j. i. h. g. f. e. d. c. a. b. Cargo identification 3 Cargo name or less), Caustic soda solution. solution. trate solution (containing more than 2% NH mers). (free alkali content 3% or more). Triethylenetetramine ... Atmos. Amb. III Triphenylborane (10% 1 i Trisodium phosphate Urea, Ammonium ni- Valeraldehyde (all iso- Vanillan black liquor Vinyl acetate ...... Atmos. Amb. Vinyl chloride III ...... Press. Amb. Vinyl chloride 1 i ...... Atmos. II Low Vinylidene chloride ..... 1NA Atmos. II Amb. 1NA II 1NA

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