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GB/T 22364-2018Paper and board -- Determination of bending resistance (English PDF)

纸和纸板弯曲挺度的测定

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

July 1, 2019

Scope

GB/T 22364-2018 is the English-translated version of 纸和纸板弯曲挺度的测定.

GB/T 22364-2018 is the Chinese standard "Paper and board -- Determination of bending resistance". Its scope clause reads: This standard specifies three methods for determining the bending stiffness of paper and paperboard. constant speed bending method, Taber stiffness meter method and resonance method.

This standard constant speed bending method is suitable for paper and paperboard with a bending stiffness of 20mN~10000mN. This standard Taber stiffness meter The method is mainly applicable to high-quantity paper and paperboard.

The Taber stiffness meter in this standard does not include low-range Taber type using 10mm bending length. Stiffness meter. This standard's resonance method is suitable for most paper and paperboard, and is not suitable for paper and paper that will be layered and have obvious curl when measured.

Board, and paper with a basis weight below 40g/m2. This standard applies to corrugated board components but not to corrugated board. Note. Measurement results obtained using different test methods cannot be converted to each other. Its clauses include terms and definitions.

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Document preview — GB/T 22364-2018

National Standard of the People's Republic of China

ICS: 85.010
Classification: Y 30
Replacing: GB/T 22364-2008

Issued by: State Administration for Market Regulation, China National Standardization Administration

1 Scope
2 Normative references
3 Terms and definitions
3.1 Bending force
3.2 Bending moment
3.3 Bending stiffness
3.4 Bending angle

1 Scope

This standard specifies three methods for determining the bending stiffness of paper and paperboard. constant speed bending method, Taber stiffness meter method and resonance method.

This standard constant speed bending method is suitable for paper and paperboard with a bending stiffness of 20mN~10000mN. This standard Taber stiffness meter

The method is mainly applicable to high-quantity paper and paperboard. The Taber stiffness meter in this standard does not include low-range Taber type using 10mm bending length.

Stiffness meter. This standard's resonance method is suitable for most paper and paperboard, and is not suitable for paper and paper that will be layered and have obvious curl when measured.

Board, and paper with a basis weight below 40g/m2. This standard applies to corrugated board components but not to corrugated board.

Note. Measurement results obtained using different test methods cannot be converted to each other.

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 450 paper and paperboard samples taken and the longitudinal, lateral and frontal measurements of the samples (GB/T 450-2008, ISO 186.

2002, MOD)

GB/T 451.2 Determination of the quantitative determination of paper and paperboard (GB/T 451.2-2002, eqvISO 536.1995)

GB/T 10739 Standard atmospheric conditions for the processing and testing of paper, board and pulp samples (GB/T 10739-2002, eqvISO 187.

1990)

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Bending force

The force required to bend a rectangular specimen that is clamped at one end under the test conditions specified in this standard.

Note. The bending force definition applies to the constant speed bending method.

3.2 Bending moment

Under the test conditions specified in this standard, the torque required to bend a rectangular specimen clamped at one end.

Note. The bending moment definition applies to the Taber stiffness tester.

3.3 Bending stiffness

The force or moment required for paper and paperboard to flex under the conditions of elastic deformation under the test conditions specified in this standard.

3.4 Bending angle

The angle at which the collet rotates from the initial position to the bending stiffness measurement position.

Note. The bending angle definition applies to the constant speed bending method and the Taber stiffness test method, and the bending angle is 15° or 7.5°.

GB/T 24328.3 | GB/T 12914 | GB/T 27741 | GB/T 22365 | GB/T 22363 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 34 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 186

Cited by

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