the People's Republic of China national standards

Gin turpentine GB/T 12901 91

Gum turpentin

1. Subject content and scope of application

This standard specifies the physical and chemical indexes of turpentine.

This standard is applicable to turpentine obtained by distillation of turpentine.

2. Reference standard

Packing mark for dangerous goods

GB/T 12902 Turpentine Analysis Method

3. Product variety and specification

3.1 turpentine is a transparent liquid, the chemical composition is a mixture of margin, the main component is a-amylene and R-brigene and other single mushroom compounds, chemical formula is C10H16.

3.2 turpentine is divided into excellent grade, first grade and heavy grade.

4. Technical requirements

The quality of all levels of turpentine must meet the technical requirements in the following table:

5. Inspection rules

5.1 turpentine inspection according to the same batch of random sampling, sampling number of barrels of 5%, but not less than 5 barrels, such as a batch of less than 5 barrels, should be all sampling.

5.2 sampling method

5.2.1

Use a clean and dry glass tube to extract the oil sample at the bottom of the barrel and observe the impurities and moisture. During sampling, the glass tube shall be used to stir the liquid in the barrel, then the glass tube shall be raised to the liquid level, and then slowly inserted into the bottom, so that the upper, middle and lower liquid in the barrel can be filled into the tube, the nozzle shall be blocked tightly, and the sample shall be taken out.

5.2.2 The amount of samples taken out of each sampling barrel shall be equal, and the sum of the samples taken out shall not be less than 1000mL. After mixing evenly, 500mL shall be taken out of the sample, put into a brown glass bottle, and seal the bottle cap for inspection.

5.2.3 During the inspection of all levels of turpentine, if one of the indicators is unqualified, it is the unqualified product of this level.

5.2.4 The turpentine shall be inspected according to the method specified in GB/T12902, and each batch of products shall be accompanied by product certificate and inspection list.

5.2.5 The user shall check and verify the turpentine in time. If the supplier and the demander have a dispute over the product quality and cannot be resolved through negotiation, both parties can take samples together and conduct arbitration test, and the cost shall be borne by the responsible party.

6. Marking, packaging, storage and transportation

6.1 sign

6.1.1 The packaging barrel shall be marked with the factory name or logo, trademark, product name, grade, delivery date, batch number, gross weight and net weight, which shall conform to GB/T12901 of this standard. The font shall be straight, clear and easy to identify.

6.1.2 Turpentine is flammable, and the mark of flammable substances shall be marked in accordance with the provisions of GB190.

6.2 packaging

Turpentine is packed in iron drums with a capacity of 200 L clean, tinned or other anti-corrosion coating, and the seal is sealed with an oil-resistant gasket. 175±0.5kg net weight per barrel,

6.3 storage

Turpentine oil stored in a cool, ventilated, dry place, and prevent the sun and rain.

6.4 transportation

Avoid violent impact during handling and transportation.

Additional Notes

This standard is proposed by the Ministry of the People's Republic of China Forestry.

This standard was drafted by the Institute of Forest Chemical Industry, Chinese Academy of Forestry.

Since the date of implementation of this standard, the original Ministry of Agriculture and Forestry standard LY205-74 "turpentine" invalid.