GB/T 22870-2008White top linerboard (English PDF)

1 Scope

This standard specifies the bleached pulp Testliner classification, requirements, test methods, inspection rules and signs, packaging, transportation, storage and so on.

This standard applies to the surface layer of bleached pulp, the bottom for unbleached pulp, bleached pulp made of uncoated testliner. The main product

Surface material corrugated board, hardboard and other products to be used.

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 450 and take samples to an aspect of paper and paperboard samples, positive and negative determination (GB/T 450-2008, ISO 186.

2002, MOD)

Determination of GB/T 451.1 Paper and board size and skewness

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

GB/T 451.3 Paper and board - Determination of thickness (GB/T 451.3-2002, idt ISO 534. 1988)

GB/T 456 Paper and board - Determination of smoothness (Buick method) (GB/T 456-2002, idt ISO 5627.1995)

GB/T 457-2008 Determination of paper and cardboard folding endurance (ISO 5626.1993, MOD)

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

ISO 638. 1978, MOD)

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

GB/T 1540 Determination of absorbent paper and cardboard Cobb method

Determination of GB/T 1541 Paper and paperboard dust degree

Determination of GB/T 2679.8 Paper and cardboard ring crush strength

GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan

GB/T 7974 paper, paperboard and pulp brightness (whiteness) measured diffusion/vertical method (GB/T 7974-2002, neq ISO 2470.

1999)

GB/T 10342 paper packaging and identification

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

1990)

Category 3 3.1 testliner bleached pulp mass divided into superior products, first-class goods and qualified for three levels.

4 Requirements