1、RULES FORCLASSIFICATION OFDET NORSKE VERITASVeritasveien 1,NO-1322 Hvik,Norway Tel.:+47 67 57 99 00 Fax:+47 67 57 99 11SHIPSNEWBUILDINGSSPECIAL SERVICE AND TYPEADDITIONAL CLASSPART 5 CHAPTER 4CHEMICAL CARRIERSJANUARY 2003This booklet includes the relevant amendments and corrections shown in the Janu
2、ary 2006 version of Pt.0 Ch.1 Sec.3.CONTENTS PAGESec.1 General Requirements.7Sec.2 Materials and Hull Strength.11Sec.3 Ship Arrangement and Damage Stability.12Sec.4 Arrangement in Hold Spaces.15Sec.5 Scantlings and Testing of Cargo Tanks.16Sec.6 Piping Systems in the Cargo Area.17Sec.7 Cargo Heating
3、 and Cooling Arrangements.21Sec.8 Marking of Tanks,Pipes and Valves.22Sec.9 Gas freeing and Venting of Cargo Tanks.23Sec.10 Mechanical Ventilation in the Cargo Area.25Sec.11 Fire Protection and Extinction.27Sec.12 Electrical Installations.29Sec.13 Instrumentation and Automation.31Sec.14 Tests after
4、Installation.32Sec.15 Additional Requirements for Certain Cargoes.33Sec.16 Inert Gas Plants.40Sec.17 Personnel Protection.41App.A List of Cargoes Tanker for Chemicals.43CHANGES IN THE RULES Comments to the rules may be sent by e-mail to For subscription orders or information about subscription terms
5、,please use Comprehensive information about DNV and the Societys services is found at the Web site http:/Det Norske VeritasComputer Typesetting(FM+SGML)by Det Norske Veritas Printed in NorwayIf any person suffers loss or damage which is proved to have been caused by any negligent act or omission of
6、Det Norske Veritas,then Det Norske Veritas shall pay compensation to such personfor his proved direct loss or damage.However,the compensation shall not exceed an amount equal to ten times the fee charged for the service in question,provided that the maximum compen-sation shall never exceed USD 2 mil
7、lion.In this provision Det Norske Veritas shall mean the Foundation Det Norske Veritas as well as all its subsidiaries,directors,officers,employees,agents and any other acting on behalf of DetNorske Veritas.GeneralThis booklet is a reprint of the previous edition and apart from clari-fications of te
8、xt and the inclusion of amendments and corrections,published in the July 2002 edition of Pt.0 Ch.1 Sec.3,no other chang-es have been made.This chapter is valid until superseded by a revised chapter.Supple-ments will not be issued except for an updated list of minor amend-ments and corrections presen
9、ted in Pt.0 Ch.1 Sec.3.Pt.0 Ch.1 isnormally revised in January and July each year.Revised chapters will be forwarded to all subscribers to the rules.Buyers of reprints are advised to check the updated list of rule chap-ters printed in Pt.0 Ch.1 Sec.1 to ensure that the chapter is current.Corrections
10、 and ClarificationsIn addition to the above stated rule requirements,a number of correc-tions and clarifications have been made in the existing rule text.Amended,Rules for Ships,January 2003see Pt.0 Ch.1 Sec.3,January 2006 Pt.5 Ch.4 Contents Page 3DET NORSKE VERITASCONTENTSSEC.1 GENERAL REQUIREMENTS
11、.7A.Classification.7A 100 Application.7A 200 Class notations.7A 300 Special features notations.7B.Definitions.8B 100 Terms.8C.Documentation.9C 100 General.9C 200 Plans and particulars.9D.Tank Types.10D 100 Integral tanks,general.10D 200 Integral tanks,type a1.10D 300 Integral tanks,type a2.10D 400 I
12、ndependent tanks,general.10D 500 Independent tanks,type a3.10D 600 Independent tanks,type a4.10E.Filling Limits for Cargo Tanks.10E 100 General.10F.Signboards.10F 100 References.10G.Cargo Information.10G 100 General.10H.Procedures and Arrangements Manual.10H 100 General.10SEC.2 MATERIALS AND HULL ST
13、RENGTH.11A.General.11A 100 Selection and testing.11B.Hull.11B 100 General.11C.Cargo Tanks.11C 100 General.11D.Cargo Piping.11D 100 General.11D 200 Documentation of material quality and testing.11E.Hull Strength.11E 100 Emergency towing.11SEC.3 SHIP ARRANGEMENT AND DAMAGE STABILITY.12A.Damage Stabili
14、ty.12A 100 General.12A 200 Requirements for watertight integrity.12B.Cargo Tank Location.12B 100 General.12C.Location and Separation of Spaces.12C 100 General.12D.Arrangement of Entrances and Other Openings.12D 100 Accommodation and gas safe spaces.12D 200 Gas dangerous spaces and cargo tanks.13D 30
15、0 Access to and within cargo tanks,void spaces and other spaces in the cargo area.13E.Guard Rails and Bulwarks.13E 100 Arrangement.13F.Cargo Pump Rooms,Cofferdams and Pipe Tunnels.13F 100 General.13G.Diesel Engines Driving Emergency Fire Pumps,etc.13G 100 General.13H.Chain Locker and Windlass.13H 10
16、0 General.13I.Anodes,Washing Machines and Other Fittings in Tanks and Cofferdams.14I 100 General.14J.Slop Tanks.14J 100 Arrangement.14K.Stowage of Cargo Samples.14K 100 General.14K 200 Arrangement.14SEC.4 ARRANGEMENT IN HOLD SPACES.15A.General.15A 100 Distance between tanks and hull.15B.Gas Pressure
17、 Relief Devices.15B 100 Pressure/vacuum relief valves.15C.Sealing around Tanks.15C 100 General.15D.Earth Connections.15D 100 General.15SEC.5 SCANTLINGS AND TESTING OF CARGO TANKS.16A.Scantlings of Cargo Tanks.16A 100 Integral tanks.16A 200 Independent tanks.16B.Requirements for Testing of Welds and
18、Non-Destructive Testing.16B 100 General.16B 200 Welding procedure tests.16B 300 Weld production tests.16SEC.6 PIPING SYSTEMS IN THE CARGO AREA 17A.Pumping and Piping Systems for Bilge,Ballast and Fuel Oil.17A 100 General.17A 200 Cargo pump rooms.17A 300 Cofferdams and pipe tunnels.17A 400 Spaces for
19、 independent tanks.17A 500 Ballast tanks.17A 600 Fuel oil tanks.17B.Cargo Piping System.17B 100 General.17B 200 Cargo pumps.17B 300 Arrangement and general design.18B 400 Pressure indication.18B 500 Welding procedure tests.18B 600 Testing.18C.Stripping of Cargo Tank and Cargo Lines.18C 100 General.1
20、8D.Discharge of Contaminated Water.19D 100 Location of discharge outlet.19D 200 Sizing of the discharge outlet.19D 300 Cargo Record Book.19E.Stern loading and unloading arrangements.19E 100 General.19E 200 Piping arrangement.19E 300 Accommodation entrances.19E 400 Electrical equipment Fire fighting.
21、19Rules for Ships,January 2003 Amended,Pt.5 Ch.4 Contents Page 4 see Pt.0 Ch.1 Sec.3,January 2006DET NORSKE VERITASF.Cargo Hoses.20F 100 General.20SEC.7 CARGO HEATING AND COOLING ARRANGEMENTS.21A.Cargo Heating and Cooling Arrangements.21A 100 General.21A 200 Heating of cargoes with temperatures abov
22、e 80C.21SEC.8 MARKING OF TANKS,PIPES AND VALVES.22A.General.22A 100 Marking plates.22A 200 Pipelines.22A 300 Marking of independent tanks.22SEC.9 GAS FREEING AND VENTING OF CARGO TANKS.23A.Gas Freeing of Cargo Tanks.23A 100 General.23B.Tank Venting Systems.23B 100 General.23B 200 Tank venting system
23、,type c1.23B 300 Tank venting system,type c2.23B 400 Tank venting system,type c3.24SEC.10 MECHANICAL VENTILATION IN THE CARGO AREA.25A.System Requirements.25A 100 General.25A 200 Fans serving gas dangerous spaces.25A 300 Ventilation of cargo handling spaces.25A 400 Ventilation of spaces not normally
24、 entered.25SEC.11 FIRE PROTECTION AND EXTINCTION.27A.Fire Protection.27A 100 Construction.27A 200 Accommodation,service and control spaces.27A 300 Firefighters outfit.27B.Fire Extinguishing.27B 100 Fire extinguishing in cargo area.27B 200 Deck fire extinguishing system in cargo area.27B 300 Fire ext
25、inguishing in cargo pump rooms.28SEC.12 ELECTRICAL INSTALLATIONS.29A.General.29A 100 Application.29B.Electrical Installations in Cargo Area and Adjacent to this Area.29B 100 General.29B 200 Cargo tanks.29B 300 Cofferdams and other under deck spaces adjacent to cargo tanks.29B 400 Cargo pump rooms.29
26、B 500 Enclosed or semi-enclosed spaces above cargo tanks.29B 600 Hazardous areas on the open deck.29B 700 Other spaces in the cargo area and in enclosed or semi-enclosed spaces with direct access to the cargo area.30B 800 Tweendeck spaces.30C.Signboards.30C 100 General.30SEC.13 INSTRUMENTATION AND A
27、UTOMATION.31A.General Requirements.31A 100 General.31B.Alarm,Indicating and Recording Systems.31B 100 Cargo tank level gauging.31B 200 Overflow control.31B 300 Vapour detection.31B 400 Cargo temperature measurement.31B 500 Hold leakage alarm.31B 600 Computer(PLC)based systems for cargo handling.31B
28、700 Centralised cargo control.31B 800 Gas Detection in Cargo Pump Room for Flammable Liquids with Flashpoint not exceeding 60C.31SEC.14 TESTS AFTER INSTALLATION.32A.General.32A 100 Application.32SEC.15 ADDITIONAL REQUIREMENTS FOR CERTAIN CARGOES.33A.General Requirements.33A 100 Application.33A 200 M
29、aterials.33A 300 Segregation of cargo from bunker tanks.33A 400 Separate piping systems.33A 500 Cargo contamination.33A 600 Inert gas.33A 700 Moisture control(Drying).33A 800 Cargo pumps in tank.34A 900 Cargoes not to be exposed to excessive heat.34A 1000 Cargoes requiring heating.34A 1100 Cargo pum
30、p temperature sensors.34A 1200 Increased ventilation of cargo handling spaces.34B.Additional Requirements for Certain Groups of Cargoes.34B 100 Acids.34B 200 Cargoes which have a vapour pressure greater than 1.015 bar at 37.8C.34C.Additional Requirements for Certain Chemicals.34C 100 Ammonium nitrat
31、e solution,93%or less.34C 200 Carbon disulphide.34C 300 Diethyl ether.35C 400 Hydrogen peroxide solutions of 60%but not over 70%.35C 500 Hydrogen peroxide solutions over 8%but not over 60%.36C 600 Phosphorus,yellow or white.36C 700 Propylene oxide and mixtures of ethylene oxide/propylene oxide with
32、ethylene oxide content of not more than 30%by weight.37C 800 Sulphuric acid.38C 900 Sulphur liquid.38C 1000 Alkyl(C7 C9)nitrates.39SEC.16 INERT GAS PLANTS.40A.General.40A 100 Application.40A 200 Documentation.40B.Materials,Arrangement and Design.40B 100 General.40B 200 Inert gas systems based on oth
33、er means than combustion of hydrocarbons.40B 300 Nitrogen inert gas systems fitted for other purposes.40SEC.17 PERSONNEL PROTECTION.41A.General Requirements.41A 100 Protective equipment.41B.Safety Equipment.41B 100 Safety equipment.41C.Medical First-aid Equipment.41C 100 General.41D.Decontamination
34、Showers and Eye Washes.41D 100 General.41APP.A LIST OF CARGOES TANKER FOR Amended,Rules for Ships,January 2003see Pt.0 Ch.1 Sec.3,January 2006 Pt.5 Ch.4 Contents Page 5DET NORSKE VERITASCHEMICALS.43 A.General.43A 100 List of cargoes.43Rules for Ships,January 2003 Amended,Pt.5 Ch.4 Contents Page 6 se
35、e Pt.0 Ch.1 Sec.3,January 2006DET NORSKE VERITASAmended,Rules for Ships,January 2003see Pt.0 Ch.1 Sec.3,January 2006 Pt.5 Ch.4 Sec.1 Page 7DET NORSKE VERITASSECTION 1 GENERAL REQUIREMENTSA.ClassificationA 100 Application101 The rules in this chapter apply to ships intended for car-riage of liquid ch
36、emicals in bulk.The requirements are to beregarded as supplementary to those given for assignment ofmain class.102 Cargoes covered by the classification in accordance withthis chapter are listed in Appendix A,in the following also re-ferred to as the List of Cargoes.Non-hazardous cargoes exceptoil,a
37、re covered by the general requirements for main class un-less otherwise stated.103 The requirements of this chapter are considered to meetthe requirements of the International Code for the Constructionand Equipment of Ships Carrying Dangerous Chemicals inBulk.104 Chemical tankers also intended for c
38、arriage of oil are tocomply with the requirements in Ch.3.A 200 Class notations 201 Ships built according to Sec.1 to Sec.14 of this chaptermay be assigned the class notation:Tanker for Chemicals ESP orTanker for Chemicals.Ships built for carriage of cargoes not requiring full compli-ance with Sec.1
39、 to Sec.14 may be assigned the class notation:Tanker for C ESP orTanker for Cwhere C indicates the type of cargo for which the ship is clas-sified.The mandatory ship type and service notationTanker for Chemicals ESP orTanker for C ESPis to be assigned to self propelled ships having integral tanksint
40、ended for carriage of liquid chemicals in bulk in accordancewith IMOs International Code for the Construction and Equip-ment of Ships carrying Dangerous Chemicals in Bulk(IBCCode),or Code for the Construction and Equipment of Shipscarrying Dangerous Chemicals in Bulk(BCH Code),as appli-cable.202 The
41、 requirements for ships with the class notationTanker for C ESP orTanker for Cwill be considered in each case depending on the nature of thecargo to be carried.A 300 Special features notations301 In the Register of vessels classed with DNV,a shipwith the class notation Tanker for Chemicals ESP orTan
42、ker for Chemicalsmay be given a series of letters and numbers describing tech-nical features of the ship as described in 302 to 310(see alsoAppendix A).302 Ship typeThe damage stability standard in accordance with IMOs Inter-national Chemical Code is identified by one of the followingnotations:Ship
43、type 1 Ship type 2 Ship type 3See Sec.3.303 Tank type(a)The tank types are identified as follows:a1:Integral tank,type a1 a2:Integral tank,type a2 a3:Independent tank,type a3 a4:Independent tank,type a4See D.304 Cargo tank material(ss)The notation ss indicates that the ship has one or more cargotank
44、s made of stainless steel,solid or clad.305 Liquid level gauging devices for cargo tanks(b)The liquid level gauging devices are identified as follows:b1:open device b2:restricted device b3:closed device b4:indirect deviceSee Sec.13.306 Tank vent system(c)The tank vent systems are identified as follo
45、ws:c1:open type vent system c2:tank vent system,outlet 6 m above deck c3:tank vent system,outlet B/3,minimum 6 m abovedeck,alternatively 3 m above deck and high velocityvalves.See Sec.9.307 Ventilation system(v)Ventilation systems outside the cargo tanks are identified asfollows:v2:Ventilation syste
46、m providing 30 air changes per hourin cargo handling spaces v3:Ventilation system providing 45 air changes per hourin cargo handling spaces.See Sec.10.308 Overflow control(f)The overflow control systems for cargo tanks are identified asfollows:f1:high level alarm f2:high-high level alarm.See Sec.13.
47、309 Cargo stripping efficiency(str)The efficiency of the cargo stripping arrangements of a cargotank and associated cargo piping is identified as follows:str 0.3:residue quantity not in excess of 0.3 m3 str 0.1:residue quantity not in excess of 0.1 m3.See Sec.6.Rules for Ships,January 2003 Amended,P
48、t.5 Ch.4 Sec.1 Page 8 see Pt.0 Ch.1 Sec.3,January 2006DET NORSKE VERITAS310 Cofferdam(k)The meaning of the letter k is:k:bunker tanks are separated from cargo tanks by coffer-dams.See Sec.3.311 Ship type and tank groups may be indicated in the Reg-ister of vessels classed with DNV.This will,for a sh
49、ip withcargo tanks of different technical standard,be limited to thegroups with the lowest and highest technical standard,respec-tively.EXAMPLE:A ship has lowest and highest technical standard in tank groups as follows:Ship type 3,a1,b2,c2,v3,f1,str 0.3 and Ship type 2,a2,b3,c3,v3,f2 str 0.1.In the
50、Register of ships the following will be given:Ship type 2,a1.2,b2.3,c2.3,v3,f1.2,str 0.3,str 0.1.Where more than one number isgiven in connection with a letter,all first and second numbers are to be com-bined,respectively.B.Definitions B 100 Terms101 Accommodation spaces are those used for public sp
