GB/T 3405-2025 Petroleum benzene
Warning: If proper preventive measures are not taken, the products covered by this document may be in danger during production, storage transportation and use. This document is not intended to suggest all safety issues related to this product. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
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
SH/T 0246 Determination of water content in light petroleum products (Electrometry)
SH/T 0604 Crude petroleum and petroleum products - Determination of density - Oscillating U-tube method
SH/T 0630 Determination of bromine value and bromine index of petroleum products (electricity method)
SH/T 0657 Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combustion and chemiluminescence detection
SH/T 0689 Standard test method for determination of total sulfur in light hydrocarbons motor fuels and oils by ultraviolet fluorescence
SH/T 1147 Aromatic hydrocarbons for industrial use - Determination of trace quantities of sulfur - Microcoulometric method
SH/T 1551 Determination of bromine index of aromatic hydrocarbons for industrial use - Coulometric titration
SH/T 1757 Aromatic hydrocarbons for industrial use - Determination of organic chloride - Microcoulometric method
SH/T 1767 Determination of bromine index of aromatic hydrocarbons - Electrometric titration
SH/T 1820 Aromatic hydrocarbons for industrial use - Determination of trace sulfur - Ultraviolet fluorescence method
SH/T 1821 Aromatic hydrocarbons for industrial use - Determination of trace nitrogen - Chemiluminescence method
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
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Technical requirements and test methods
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
