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GB 41730-2022: Safety requirements for tank cleaning operation of oil tankers
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| GB 41730-2022 | English | 329 |
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Safety requirements for tank cleaning operation of oil tankers
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GB 41730-2022
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Standard similar to GB 41730-2022 GB 18093 GB 44019 Basic data | Standard ID | GB 41730-2022 (GB41730-2022) | | Description (Translated English) | Safety requirements for tank cleaning operation of oil tankers | | Sector / Industry | National Standard | | Classification of Chinese Standard | R22 | | Word Count Estimation | 17,131 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB 41730-2022: Safety requirements for tank cleaning operation of oil tankers---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Safety requirements for tank cleaning operation of oil tankers
ICS 03.220.40
CCSR22
National Standards of People's Republic of China
Requirements for safe operation of cleaning tanks of oil tankers
Published on 2022-07-13
2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General Requirements 2
5 Washing 4
6 Crude oil washing6
7 Degassing 7
8 Clearance 8
Appendix A (Normative) Safety Confirmation Form for Crude Oil Washing Operation 9
Reference 12
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is proposed and managed by the Ministry of Transport of the People's Republic of China.
Requirements for safe operation of cleaning tanks of oil tankers
1 Scope
This document specifies the general requirements for the safe operation of tank cleaning on oil tankers, as well as the requirements for safe operations such as tank washing, crude oil washing, degassing, and tank cleaning.
This document is applicable to tank cleaning operations of oil tankers of 150 gross tonnage and above in the waters under the jurisdiction of the People's Republic of China.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
JT/T 673 Requirements for receiving and processing capacity of ship pollutants receiving and ship cleaning operation units
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
tankwashing
The operation of cleaning the inner surface of cargo oil tank and its components through tank washing equipment using water, crude oil, chemical cleaning agent, etc. as a medium.
3.2
tankwashingmachines
Driven by the driving device, the tank washing equipment can change the spray angle of the nozzle in different directions.
Note. The tank washing machine is divided into fixed tank washing machine and mobile tank washing machine, and there are single nozzle, multi nozzle and other types.
3.3
crude oil washing
The oil tanker transporting crude oil uses the cargo oil carried as the cleaning medium, sprays it into the cargo oil tank under high pressure through the tank washing machine and relies on the crude oil itself
The operation of washing off the oil residue adhering to the bulkhead, structural members and bilge, and discharging it out of the tank together with the cargo oil.
3.4
waterwashing
The operation of cleaning the inner surface of the cargo oil tank and its components through tank washing equipment using water as a medium.
Note. Including water washing of product oil tankers, water washing of crude oil tankers and water washing after crude oil tank washing.
3.5
inert gas
A single or mixed gas containing insufficient oxygen to sustain combustion of hydrocarbons.
Note. Including flue gas, nitrogen, etc.
3.6
Inert state inertcondition
After the cargo oil tank is filled with inert gas, the oxygen content of the gas in the tank has dropped to 8% or less by volume.
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