This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and safety precautions for industrial xylenol. This standard applies to xylenol obtained by fractionation of crude phenol obtained from coal tar and phenol-containing wastewater. GB/T 2600-1997 Industrial xylenol GB/T2600-1997 Standard download decompression password: www.bzxz.net

GB/T 2600-1997
This standard is revised on the basis of GB2600--81 "Industrial Xylenol". The new standard adds scope, reference standards, marking, packaging, transportation, storage and safety precautions. The technical content has been appropriately adjusted, and the moisture index has been improved; the distillation test and neutral oil content index have been changed from one level to two levels. This standard will replace GB2600-81 from the date of entry into force. This standard is proposed by the Ministry of Metallurgical Industry.
This standard is under the jurisdiction of the Information Standards Institute of the Ministry of Metallurgical Industry. The drafting units of this standard are Shanghai Meishan (Group) Co., Ltd. and the Information Standards Institute of the Ministry of Metallurgy. The main drafters of this standard are Zhang Yi and Sun Wei. This standard was first issued in 1981.
1 Scope
National Standard of the People's Republic of China
Technical xylenol
GB/T 2600—1997
Replaces GB2600-81
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and safety precautions for industrial xylenol.
This standard applies to xylenol obtained by fractionation of crude phenol prepared from coal tar and phenol-containing wastewater. 2 Reference Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in the standard. At the time of publication of the standard, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. GB 1999--80
Sampling method for light oil of coking products
GB 2281--80
Determination method for density of phenolic products
GB 2282--80
Test method for distillation of phenolic products
GB 2288--80
Determination method for moisture content of coking products
Determination method for neutral oil and pyridine base content of phenolic productsGB 3711-83
GB 5074--85
GB 8170--87
3 Technical requirements
Microcoulometric determination method for moisture content of coking products-Numerical rounding rules
The technical indicators of industrial xylenol shall comply with the requirements of Table 1. Table 1
Indicator namewww.bzxz.net
Density (20C), g/cm2
Distillation test (atmospheric pressure 101.325, kPa) Distillate before 205℃ (V/V), %
Distillate before 225℃ (V/V), %
Neutral oil content, %
Water, %
Approved by the State Administration of Technical Supervision on March 17, 1997 158
Not more than
Not less than
Not more than
Not more than
Colorless to brownish red transparent liquid
1. 01 ~1. 04
Implemented on September 1, 1997
4Test method
GB/T 2600—1997
4.1 Appearance determination: Pour the sample into a colorless transparent glass test tube with an inner diameter of 22mm and inspect visually under transmitted light. 4.2 Density determination shall be carried out in accordance with GB2281. 4.3 Distillation test shall be carried out in accordance with GB2282. 4.4 Neutral oil content determination shall be carried out in accordance with GB3711. 4.5 Water content determination shall be carried out in accordance with GB2288 or GB5074; arbitration shall be conducted in accordance with GB2288. 5 Inspection rules
5.1 The quality inspection and acceptance of industrial xylenol shall be carried out by the quality supervision department. 5.2 Sample collection and preparation shall be carried out in accordance with GB1999. 5.3 Numerical rounding shall be carried out in accordance with GB8170. 6 Marking, packaging, transportation, storage
6.1 The product must be packed into clean, dry iron barrels or tank trucks, and the barrels should be marked with the product name, manufacturer name, net weight, grade and "toxic" mark.
6.2 Each batch of products shipped out of the factory should be accompanied by a quality certificate. The certificate should include: manufacturer name, product name, standard number, batch number, gross weight, net weight, delivery date and various test results and quality grades specified in this standard. 6.3 During transportation and storage, keep away from fire and heat sources, pay attention to ventilation, and store separately from oxidants. If stored in the open air, prevent rain from intrusion. 7 Safety precautions
7.1 Xylenol is an organic corrosive. It is flammable, corrosive and toxic. The maximum allowable concentration in the workplace is 22rng/m3. 7.2 Exhaust equipment should be installed in the workplace; necessary fire-fighting facilities and first aid kits should be prepared, and personal protective equipment (such as protective glasses, rubber gloves, protective masks, masks, work clothes, etc.) must be used when entering the workplace. 7.3 If this product catches fire, it can be extinguished with water mist, foam, sand, etc. 7.4 If this product comes into contact with the skin, it should be washed off quickly with soapy water.
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