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GB/T 458-2008Paper and board -- Determination of air permeance (English PDF)

纸和纸板透气度的测定

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 19, 2008

Implementation date

May 1, 2009

Scope

GB/T 458-2008 is the English-translated version of 纸和纸板透气度的测定.

GB/T 458-2008 is a Chinese recommended national standard. Its English version is available from this page.

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Document preview — GB/T 458-2008

Foreword3
1 Scope5
2 Normative references5
3 Terms and definitions5
4 Measurement procedures of Gurley method6
5 Measurement procedures of Schopper method8
6 Measurement procedures of Bendtsen method10
7 Test report11
APPENDIX A (Normative) Gurley air permeance tester13
APPENDIX B (Normative) Schopper air permeance tester16
Appendix C (Normative) Bendtsen air permeance tester17

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

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