GB/T 11717-2018Pulp logs (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 11717-2009 "paper for papermaking". This standard is compared with GB/T 11717-2009, the main technical changes as follows:

--- Revised scope (see Chapter 1, Chapter 1 of the.2009 edition);

--- Revised the normative reference document (see Chapter 2, Chapter 2 of the.2009 edition);

--- Added terms and definitions (see Chapter 3);

--- Modified the tree species (see 4.1,

3.1 of the.2009 edition);

--- Increased size and tolerance (see 4.2);

--- Revised the gauge path (see 4.2.2,

3.3 of the.2009 edition);

--- Revised the allowable limit of defects (see Table 1, Table 1 of the.2009 edition);

--- Revised volume calculation (see 5.3,

4.3 edition of.2009);

--- Increased raw wood product for papermaking (see Appendix A). This standard was proposed by the National Forestry and Grassland Bureau. This standard is under the jurisdiction of the National Timber Standardization Technical Committee (SAC/TC41). This standard was drafted. Heilongjiang Institute of Wood Science, Heilongjiang Academy of Forestry. The main drafters of this standard. Zhang Dongmei, He Jincun, Xu Rui, Zhou Zhifang, Zhang Wei, Huang Zaihua, Deng Xiaohua, Li Bin, Liu Xiuyan, Gao Dandan, Wang Hezhen, Gao Peng. The previous versions of the standards replaced by this standard are.

---GB/T 11717-1989, GB/T 11717-2009. Papermaking logs

1 Scope

GB/T 11717-2018 is the Chinese national standard on pulp logs, in the field of wood technology. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 7 June 2018 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 January 2019. Classification: ICS 79.040, CCS B68. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the terms and definitions, requirements, sampling methods, inspection methods, volume calculations and product marks of paper logs. This standard applies to the production, circulation and supervision and inspection of paper logs.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 144 log inspection GB/T 155 log defect

GB/T 4814 original wood product table

GB/T 15787 Log Inspection Terminology

GB/T 17659.1 Sawmills for batch inspection and sampling - Part 1 . Methods and methods LY/T 1511 Log Product Marking

3 Terms and definitions

The terms and definitions defined in GB/T 155 and GB/T 15787 apply to this document.

4 Requirements

4.1 Tree species All needles and broadleaf are suitable for tree species.