Specification for classification and grading of waste paper

　　Now, the main provisions in the code for classification and grading of waste paper are explained in detail

　　1、 Main contents of this standard

　　1. Definition of waste paper

　　This standard defines "waste paper" in circulation and production field for the first time, which refers to the recyclable paper produced in production and life, so as to make a strict distinction between waste paper and other non recyclable waste paper.

　　2. Definition of prohibited and unqualified waste paper

　　This standard specifies the prohibited and unqualified waste paper in each type of waste paper, which is not involved in previous standards, and meets the requirements of the definition of prohibited and unqualified waste paper in the actual circulation of waste paper. At the same time, the definition of "prohibited substances" in gb20811 is expanded, and "hazardous substances" defined in GB 16487.4 and "hazardous wastes" defined in GB 5085 are included in the concept of "prohibited substances" in this standard.

　　3. Scope of application

　　The principle of waste paper classification in this standard is to classify waste paper according to its source and use, which is applicable to all links of waste paper recovery, sorting, processing, sales, quality inspection and recycling; the principle of waste paper classification is to classify waste paper grades according to the quality requirements of raw materials for the production of recycled paper, which can be used to guide the recovery, trading, quality inspection and recycling of waste paper; The waste paper inspection specification is applicable to the quality inspection in waste paper trading. 4. Classification of waste paper

　　According to the sources and uses of waste paper, waste paper is divided into eight categories: Waste carton, waste newspaper, waste books and magazines, waste kraft paper, waste cardboard, waste copper plate, waste paper, special waste paper.

　　5. Classification and labeling principle of waste paper

　　Based on the classification of waste paper into eight categories, this standard classifies each type of waste paper according to the quality, unqualified waste paper content, prohibited matter content and moisture content, and takes the easy to understand Pinyin abbreviation as the label. It is the first time in China that the label system conforms to the international general standards and is conducive to international standards.

　　6. Technical specification for waste paper inspection

　　This standard standardizes the testing instruments, testing procedures and calculation methods for the moisture content of waste paper, prohibited matter content and unqualified waste paper content. For the moisture content testing, it standardizes the two testing methods of water meter testing and oven testing, among which the water meter testing method is proposed for the first time in China.

　　2、 Basis for determining key indicators

　　In this standard, the classification of each type of waste paper grade in the grade specification is based on the current market transaction pricing habits, on the basis of integrating different regional markets and different paper enterprise procurement standards, and referring to the quality description and indicators of each grade of waste paper with the lowest value, the content of unqualified waste paper, prohibited matter content and moisture content are reduced. After two rounds of consultation and expert approval To form this standard. Based on the actual trading habits of the current market, it is for the operability of the standards in the implementation process. Higher than the actual trading habits, it is for improving the quality of waste paper and improving the recycling rate.