GB/T 3405-2025Petroleum benzene (English PDF)

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 for standardization documents" Drafting.

This document replaces GB/T 3405-2011 "Petroleum Benzene". Compared with GB/T 3405-2011, except for structural adjustments and editorial changes, In addition, the main technical changes are as follows.

a) The scope has been changed (see Chapter 1, Chapter 1 of the 2011 edition);

b) The test methods for purity, toluene, non-aromatic hydrocarbons and 1,4-dioxane have been changed (see Table 1, Table 1 of the 2011 edition);

c) The color test method and arbitration test method have been changed (see Table 1, Table 1 of the 2011 edition);

d) The quality index of petroleum benzene-535 thiophene was changed from "report" to "<=1.0mg/kg", and the test method of petroleum benzene-535 thiophene content was changed.

Methods (see Table 1, Table 1 of the 2011 edition);

e) Added the bromine index quality index of petroleum benzene-535 (see Table 1);

f) "Total sulfur content" was changed to "sulfur content", and the test method and arbitration method were changed (see Table 1, Table 1 of the 2011 edition);

g) The test method for nitrogen content has been changed (see Table 1, Table 1 of the 2011 edition);

h) The test method for water content has been changed (see Table 1, Table 1 of the 2011 edition);

i) Added the quality index and test method of chlorine content (see Table 1);

j) Changes have been made to marking, packaging, storage, transportation and delivery acceptance (see Chapter 7, Chapter 6 of the 2011 edition);

k) Safety has been modified (see Chapter 8, Chapter 7 of the 2011 edition);

l) The determination method for trace thiophene in petroleum benzene has been changed (see Appendix A, Appendix A of the 2011 edition).

This document is proposed and coordinated by the National Technical Committee for Standardization of Petroleum Products and Lubricants (SAC/TC280).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was drafted by: China National Petroleum Corporation Fushun Petrochemical Company, China Petrochemical Shanghai Petrochemical Company Company, PetroChina Petrochemical Research Institute, Sinopec Petrochemical Research Institute Co., Ltd., Sinopec (Shanghai) Petrochemical Research Institute Co., Ltd., China National Petroleum Corporation Urumqi Petrochemical Branch, China National Petroleum Corporation Lanzhou Petrochemical Company, China National Petroleum Corporation Jilin Petrochemical Company, Hengli Petrochemical (Dalian) Refining and Chemical Company Limited company.

The main drafters of this document are: Zhang Zhongyang, Zhang Liang, Gu Jianguo, Yu Hongzhi, Qu Jingbo, Han Hongling, Wang Xiaoyu, Chen Hao, Lü Shenhong, Zhang Ying, Niu Xiaojuan, Liu Honglu, Cheng Ye, Sun Kai, Duan Qiyong, Li Chengwei.

This document was first issued in 1982, revised for the first time in 2011, and this is the second revision. Petroleum Benzene Warning---If appropriate precautions are not taken, the products covered by this document may be dangerous during production, storage, transportation and use.

This document does not purport to provide advice on all safety issues associated with this product. It is the user's responsibility to adopt appropriate safety and health precautions.

and ensure that the conditions stipulated by relevant national laws and regulations are met.

1 Scope

This document specifies the product classification, technical requirements and test methods, inspection rules, marking, packaging, storage and transportation, delivery acceptance and safety of petroleum benzene.

This document is applicable to petroleum benzene as organic synthesis or other chemical raw materials produced by catalytic reforming, by-product aromatics of ethylene cracking, toluene disproportionation and other processes with crude oil and derivatives as raw materials.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 511 Petroleum, petroleum products and additives - Method for determination of mechanical admixtures

GB/T 1816 Test for neutrality of benzole products

GB/T 2012 Aromatic hydrocarbons - Test method of acid wash

GB/T 2013 Method for determination density of benzene products

GB/T 3143 Color determination method of liquid chemicals (Hazen unit - Platinum-cobalt scale)

GB/T 3145 Determination of benzene crystallizing point

GB/T 4756 Petroleum liquids - Manual sampling

GB/T 6324.6 Test method of organic chemical products - Part 6: Determination of color for liquids - Tristimulus colorimetry

GB/T 6324.8 Test methods of organic chemical products - Part 8: Determination of water of liquid products - Carl·fischer coulometric method

GB 13690 General rule for classification and hazard communication of chemicals

GB 30000.7 Rules for classification and labeling of chemicals - Part 7: Flammable liquids

GB 30000.18 Rules for classification and labelling of chemicals - Part 18: Acute toxicity

GB/T 40111 Standard test method for fluorine, chlorine and sulfur in petroleum products - Combustion-ion chromatography

NB/SH/T 0164 Petroleum and related products packaging, storage, transportation and acceptance of delivery rules

NB/SH/T 0253 Determination of trace quantities of sulfur in light petroleum products - Oxidative microcoulometry method

NB/SH/T 6056 Standard test method for determination of organic chloride content in light hydrocarbons and engine fuels - Microcoulometry

NB/SH/T 6057 Determination of purity and Impurities in petroleum benzene, petroleum toluene and petroleum mixed xylene products by gas chromatography - Effective carbon number

3 Terms and definitions

No terms or definitions are listed in this document.

4 Product classification

Petroleum benzene is classified into two grades: petroleum benzene-535 and petroleum benzene-545 according to its crystallization point.

Contents of GB/T 3405-2025 Contents Foreword i

6 Inspection rules

7 Marking, packaging, storage, transportation, and delivery acceptance

6 Inspection rules

7 Marking, packaging, storage, transportation, and delivery acceptance

8 Safety

Annex A (Normative) Determination of trace amounts of thiophene in petroleum benzene - Gas chromatography - Sulfur selective detector method

Referred in GB/T 3405-2025:

GB/T 511-2010 Petroleum petroleum products and additives - Method for determination of mechanical admixtures *

GB/T 1816-2019 Test for neutrality of benzole products *

GB/T 2012-1989 Aromatic hydrocarbons; Test methods of acid wash *

GB/T 2013-2010 Standard test method for density of liquid petrochemical products * GBT3143- *

GB/T 3145-2023 Determination of benzene crystallizing point *

GB/T 4756-2015 Method for manual sampling of petroleum liquids *

GB/T 6324.6-2014 Test method of organic chemical products-Part 6:Determination of color for liquids-Tristimulus colorimetry *

GB/T 6324.8-2014 Test methods of organic chemical products-Part 8:Determination of water of liquid products-Carl・fischer coulometric method *

GB 13690-2009 General rule for classification and hazard communication of chemicals *

GB 30000.7-2013 Rules for classification and labelling of chemicals—Part 7:Flammable liquids *

GB 30000.18-2013 Rules for classification and labelling of chemicals—Part 18:Acute toxicity *

GB/T 40111-2021 Standard test method for fluorine,chlorine and sulfur in petroleum products—Combustion-ion chromatography *

NBSH/T 0164-2019 Petroleum and related products packaging,storage,transportation and acceptance of delivery rules *

NB/SH/T 0253-2021 Determination of trace quantities of sulfur in light petroleum products-Oxidative microcoulometry method *

NB/SH/T 6056-2022 Standard test method for determination of organic chloride content in light hydrocarbons and engine fuels-Microcoulometry *

NB/SH/T 6057-2022 Determination of purity and Impurities in petroleum benzene, petroleum toluene and petroleum mixed xylene products by gas chromatography-Effective carbon number *

8 Safety