GB/T 13506-2008Bleached sulfite pulp (English PDF)

Foreword

This standard is GB/T 13506-1992 "bleached sulfite pulp" amendments. This standard replaces GB/T 13506-1992. This standard compared with GB/T 13506-1992, the main changes are as follows:

--- Against the tensile index was revised;

--- Of tear index was revised;

--- Degree of dust revised. The standard proposed by China National Light Industry Council. The standard paper by the National Standardization Technical Committee (SAC/TC141) centralized. This standard was drafted. China Pulp and Paper Research Institute, Yanbian Shixian Bai Lu Paper Co., Ltd. The main drafters of this standard. in Wang, Cui Liguo. This standard replaces the standards previously issued as follows:

--- GB/T 13506-1992. The standard paper by the National Standardization Technical Committee (SAC/TC141) responsible for the interpretation. Bleached sulfite pulp

1 Scope

GB/T 13506-2008 is the Chinese national standard on bleached sulfite pulp, in the field of paper 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 19 August 2008 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 May 2009. Classification: ICS 85.040, CCS Y31. 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 bleached sulfite pulp classification, requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to the manufacture of various paper and paperboard bleached sulfite pulp.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 451.2 Paper and paperboard quantitative determination ( GB/T 451.2-2002, eqv ISO 536.1995)

GB/T 453 Paper and board Determination of tensile strength (constant-speed loading method) ( GB/T 453-2002, idt ISO 1924-1.1992)

GB/T 455 Paper and board - Determination of tearing resistance ( GB/T 455-2002, eqv ISO 1974.1990)

GB/T 462 paper, board and pulp - Determination of water sample ( GB/T 462-2008, ISO 287. 1985, ISO 638. 1978, MOD)

GB/T 740 pulp samples taken ( GB/T 740-2003, ISO 7213. 1981, IDT)

GB/T 1539 Determination of cardboard bursting strength ( GB/T 1539-2007, ISO 2759.2001, IDT)

GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan ( GB/T 2828.1-2003, ISO 2859-1.1999, IDT)

GB/T 7974 paper, paperboard and pulp brightness (whiteness) measured diffusion/vertical method ( GB/T 7974-2002, neq

ISO 2470. 1999) Determination of

GB/T 7979 pulp dichloromethane extract

GB/T 8940.2 pulp brightness (whiteness) Sample Preparation ( GB/T 8940.2-2002, eqv ISO 3688.1999)

GB/T 10739 paper, paperboard and pulp sample processing and testing standard atmospheric conditions ( GB/T 10739-2002, eqv ISO 187. 1990)

GB/T 10740 pulp dust and fiber bundle was measured ( GB/T 10740-2002, eqv ISO 5350.1998)

4 Requirements

Bleached sulfite pulp (B pulp) shall comply with the technical requirements specified in Table 1 or contract.