This standard specifies the technical conditions for petroleum benzene obtained from petroleum light fractions through pre-hydrogenation, catalytic reforming and separation. The products covered by this standard are suitable for organic synthesis or other chemical raw materials. GB 3405-1989 Petroleum benzene GB3405-1989 standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
Stone
Oil
Benzene
Electricity
Petroleum benzene
This standard adopts the international standard ISO5271-- 79≤Industrial Collection》. Subject content and scope of application
89
GB3405-
replaces GB3405-82
This standard specifies the prehydrogenation, catalytic reforming and Technical conditions for the separation of petroleum benzene. The products covered by this standard are suitable for organic synthesis or other chemical raw materials. 2 Reference standards
GB/T 1816
GB/T2012
GB/T 2013
GB/T 3143
GB/T3145||tt| |GB/T3146
GB/T 3209
GB/T 4756
Method for determination of reaction of benzene products
Aromatic acid washing test method
Benzene Product Density Determination
Axillary Chemical Product Color Determination (Hazen Units
Benzene Crystallization Point Determination
Distillation Range Determination of Benzene Products bzxz.net
Evaporation of Benzene Products Method for determination of residues
Sampling method for petroleum and liquid petroleum products (manual method) SH 0164
Rules for packaging, storage, transportation and delivery acceptance of petroleum products SH/T 0253
Lightweight Determination of total sulfur content in petroleum products (electricity method) Note: Unless otherwise stated, the above cited standards are currently valid standards 3Technical content
3.1
Product quality classification||tt| |This product is divided into superior products, first-class products and qualified products according to quality. 3.2 Technical conditions
Item
Appearance
Appearance
Color (Hazen unit|| tt||Platinum-Diamond color number)
Not deeper than
Density (20).kg/m
Distillation range,
Superior grade||tt ||Quality index
Grade product
Platinum-cobalt color number)
Test method
Qualified product
Transparent liquid, no insoluble water and mechanical impurities 20
878881
China Petrochemical Corporation 1989-03-28 approved 62
876881
79.6~80.5
Visual inspection\
GB/T 3113
GB/T 2013
GB/T3146
1990-04-01 implementation
item
pickling colorimetry||tt ||Total sulfur content
ppm
mesh
not greater than
neutral test
crystallization point (dry basis)
not low The color of the acid layer is not darker than
1000mL Dilute acid contains
0.1g standard solution of potassium dichromate
quasi-solution
5.40
GB 3405—89
continued table||tt ||Quality index
First-class product
Taige product
The color of the acid layer is not darker than the standard solution containing 0.2g potassium dichromate in 1000mL dilute acid
2
5
medium
property
5.35
3
5.00
Note: 1) Inject the sample into When measuring 100 mL of glass, it should be transparent and free of insoluble water and mechanical impurities when observed at 20 ± 3°C. 4 Packaging, marking, transportation, purchase and storage
Packaging, marking, transportation, storage and delivery acceptance shall be carried out in accordance with SH0164. 5 Sampling
Sampling shall be carried out in accordance with GB/T4756, and 1L shall be taken for inspection and sample retention. Additional notes:
This standard is under the technical jurisdiction of the Petrochemical Science Research Institute. This standard is drafted by the Second Petroleum Plant of Fushun Petrochemical Company. Chen Xidian, the main drafter of this standard.
Test method
GB/T 2012
SH/T 0253
GB/T 1816
GB/T3145
GB/T 3209
63
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