This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of gum rosin. GB/T 8145-2003 Gum rosin GB/T8145-2003 Standard download decompression password: www.bzxz.net

This standard replaces GB/T8145-19874. Since the implementation of GB/R 8145-2003, after more than ten years of application, the technical level and product quality of rosin have made great progress and improvement, and the production and export of rosin have been continuously improved. According to the actual production and use level, the standardization of GB/T 1.12000 Part 1: Standard Specifications Part 3 is revised according to the requirements of GB/T 1.12000 Part 1: Standard Specifications Part 3. Compared with 5B/T91-1-1%7, this standard has the following characteristics: - The specification width of unqualified products other than those specified in the heat grading test has been cancelled; - The test method for selecting and grading pine resins from China has been added; - The standard for the determination of the grade of rosin has been changed; - The unit symbol of the acid position has been modified: ... - The note of Table 1 has been added to indicate that the acid value of rosin shall be determined according to the acid value of the whole pine resin. The test result shall be as follows: - The acid value of the whole pine resin shall be determined according to the acid value of the high-quality rosin resin (see Table 5); - The specific sales mark shall be as follows: - The product shall be marked with the world standard for price and packaging: - The price of the product shall be marked with the industry standard 1.Y/T1117.2.1); - The price of the rosin in the barrel shall be changed to the reference industry standard 1.Y/T1117.2.1); - The price of the rosin in the barrel shall be as follows: - The price of the rosin in the barrel shall be as follows: - The price of the rosin in the barrel shall be as follows: - The price of the rosin in the barrel shall be as follows: .2): Added relevant regulations on transportation assistance (A.7.3): The content of the special product phenomenon judgment and pine spring content was transferred to Korea (/R[462003 consultation area test method 3), and the "product" was revised to "partial introduction product". The "strictly controlled product" was cancelled as an unqualified product, but it was required to be marked on the outer packaging (A.1.2)
The pine diagram of the advertisement was stipulated as "containing pine", The government has eliminated the provisions for unqualified products, but requires marking on the outer packaging (A.21
Appendix A of this standard is a formal appendix.bzxz.net
This standard was proposed by the State Forestry Administration:
This standard was proposed by the Natural Production Industry Research Institute of the China Academy of Forestry Science and Construction, and the standard was drafted by Dong Xianzhuo, Dian Xiangmin, and Shou Dongmei. The standard version replaced by this standard is: -8/8115.--1937.
1 Specification
This standard specifies the standard requirements for rosin, test force method, inspection pressure, coordination, loading and transportation of machinery and equipment? Normative references
GB/T 8145—2003
The clauses in the documents that have been quoted in the past months have become clauses of this standard. All the subsequent amendments (including errors) or cancellations of the documents quoted in the past months shall not be deemed as invalid by this standard. However, all parties shall use the clauses of these documents in accordance with the agreement. For all the clauses quoted in the past months, the latest version shall prevail. This standard is B/T8.452005.
1.Y/T1115 Rosin packaging barrel
ASTMTC9—:R9% standard rosin sample and actual grade test method 3 Product varieties and specifications
3.1 Gum rosin (hereinafter referred to as rosin) is a kind of transparent solid resin obtained by distilling and removing turpentine from living trees. The main chemical component is aldehyde resin with molecular formula 3.2 Gum rosin is divided into special grade, grade 1 and grade 2.3 Grade 4.5. Total 4.5 grades. Except for the above grades, the grades specified in this standard are similar to the corresponding grades indicated by X, WW, WG, MK in ASTM D5091s98, but they are different. They can be used as references. 4. Requirements for various grades of rosin. Table 1 Technical indicators of various grades of rosin. ||South Asia pine imports and exports the absolute value of the resin age, the non-electrochemical 7 non-degradable)
The pine that is brought out of the factory controls the neutralization of the most neutral substances, and the chemical content of its products is light. 5 test methods
The various indicators of each grade of pine are tested according to T374. E-test rules
6.1 Pine inspection and testing should be carried out by taking the first grade of each grade as a group, and the number specified in Table 2 should be carried out on the packaged GH/T 814$--2003
. If it is found that the batches are different from those of different factories, they should be sampled separately. Pine in other forms of packaging should be inspected with reference to this standard.
Table 2 Sampling of rosin for inspection
Daily efficiency
51--15c
521-1non
101-3 000
2X1-5000
Number of long hair for inspection
6.2 The sampling position of rosin sample should be 0mm. When the distance from the surface of the rosin to the bottom is 10mm. When the sample is in a very stable state, the number of barrels per barrel can be increased to 10mm.
6.3 From the sampled rosin, the one with the darkest color should be selected as the test rosin. If different colors are found in the same sample, the test rosin should be the one with the darkest color. 6.4 In addition to the color index, the sample with other indexes shall be tested. The sample shall be taken out and put into the test column with the same amount of 5CC. The sample shall be inspected in a dark glass bottle. At the same time, the sample shall be checked. 6.5 The rosin quality shall be judged according to the level of each technical index. If there is one technical index of the product that does not meet the standard, it shall be judged by a silver cup until it meets the standard. There shall be a minimum three-level index, and it shall be judged as a substandard product. 6.6 The factory shall conduct inspection according to the test method of GB 61494-15. The batch of products shall be attached with the product inspection form. 6. If the user has special requirements on the rosin product and whether it contains rosin, it shall be judged according to the provisions of the attached school. 6. The user shall promptly accept the product. When the supply and demand parties have disputes over product quality and the dispute cannot be resolved through cooperation, they can select arbitration and conduct inspection according to the standard method. 7. Labeling, packaging, transportation and storage
7.1 Labeling
7.1.1 The packaging should have obvious and company-specific labels, which include: product name, indication, standard code, batch number, gross weight, net weight, grade, and production license label.
Method of expressing batch number: Use ×××××\ digits to represent the date and time of production, and the last three digits represent the serial number of the day and time of production (1-). : Batch No. 020F000, produced on June 3, 2003, 7.1.2 Marking of export products, mark according to export requirements: 72 Packaging
7.2.1 Rosin packaging, LY/T1145, 7.2.2 Rosin is packed with iron, total net weight 22i.0kg=0.:ks, 7.2.3 Rosin board packaging, agreed by both parties: 7.3 Transportation
During transportation, rosin should be prevented from slipping, pollution and intense picking, and the packaging should be well polished. 7.4 Storage
It should be stored in a place not near fire or pollution. 2
At Crystallized rosin
Appendix A
(Normative Appendix)
Crystallized and containing
, rosin with crystallization is still a qualified product and does not affect the determination of G/8145-2003
A.1.2 Rosin with some crystallization can be carried as a qualified product, but the words "partial crystallization product" (which can be replaced by "P") should be marked after the name on the packaging barrel to facilitate users to avoid using it for other purposes. 4.2 Rosin containing sulfur
Qualitative proof that the rosin contains sulfur is determined as a sulfur-containing rosin and is normally graded. However, the words "containing" (which can be replaced by "P") should be marked after the name on the packaging barrel.
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