SIST ISO 5636-5:2014

Name: SIST ISO 5636-5:2014 — Paper and board -- Determination of air permeance (medium range) -- Part 5: Gurley method
SKU: SIST ISO 5636-5:2014
Price: 28800 RUB
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Paper and board -- Determination of air permeance (medium range) -- Part 5: Gurley method

Название (английский):

Paper and board -- Determination of air permeance (medium range) -- Part 5: Gurley method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 3 января 2014 г.
ICS:: 85.060
Технический комитет:: VPK - Pulp, paper, board and products

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Цена:28 800 ₽

Описание (английский):

ISO 5636-5:2013 specifies the Gurley method for determining the air permeance of paper and board using an air resistance tester, the Gurley apparatus. It is applicable to papers and boards which have air permeances between 0,1 µm/(Pa⋅s) and 100 µm/(Pa⋅s) when tested with the Gurley apparatus. It is unsuitable for rough-surfaced materials, which cannot be securely clamped to avoid leakage. ISO 5636-5:2013 may also be used to determine the air resistance of paper and board.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 5636-5:2013 specifies the Gurley method for determining the air permeance of paper and board using a Gurley air-resistance tester (Gurley apparatus). The standard applies to papers and boards with air permeances in the medium range (0.1 µm/(Pa·s) to 100 µm/(Pa·s)) and is unsuitable for rough-surfaced materials that cannot be securely clamped. ISO 5636-5:2013 also defines how to report air resistance (Gurley) and includes calibration and precision guidance.

Key topics and requirements

Scope and applicability: Designed for medium-range air permeance testing of paper and board; not suitable for highly rough surfaces.

Test principle: Air pressure produced by a weighted inner cylinder forces air through a test piece; the time for a set volume of air to pass is measured.

Apparatus: Gurley apparatus with inner/outer cylinders, clamping plates and a rubber gasket defining the measurement area. Sealing fluid and timer/stopwatch are required.

Measurement area and volume: The method uses a nominal 100 ml air volume per measurement (timed) and a standardized measurement area (gasket-defined).

Test pieces and conditioning: Samples prepared and conditioned per ISO 186 (sampling) and ISO 187 (conditioning). Minimum of 10 test pieces (both sides) is required for typical reporting.

Clamping and leakage control: Controlled clamping force is recommended (nominally 180 ± 30 N) to avoid surface leakage and improve repeatability.

Procedure and timing: Time the passage of 100 ml (typically by timing two consecutive 50 ml graduations) to 0.1 s accuracy; avoid vibration during testing.

Calculation and reporting: Air permeance P is calculated from the measured time (standard formula in the standard) and reported to three significant figures; air resistance reported in seconds (Gurley) to two significant figures.

Calibration and precision: Calibrate per manufacturer instructions or Annex A of the standard; Annex C provides informative precision data.

Applications and who uses it

Quality control and specification testing in paper mills and converting operations.

R&D and product development for printing papers, packaging papers, and functional papers where breathability or barrier properties matter.

Suppliers and purchasers requiring a standardized test for air permeance/air resistance comparisons.

Laboratories performing routine compliance testing or comparative performance evaluation for ink absorption, coating, and filtration candidate materials.

Related standards

ISO 5636 (other parts): Part 3 (Bendtsen method), Part 4 (Sheffield method), Part 6 (Oken method - in preparation).

Normative references cited: ISO 186 (sampling), ISO 187 (conditioning), ISO 48 (rubber hardness) and others.

Keywords: ISO 5636-5, Gurley method, air permeance, Gurley apparatus, air resistance, paper and board testing, ISO 187, ISO 186.

SIST ISO 5636-5:2014

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and who uses it

Related standards

Технические детали

ISO 5636-5:2013

Paper and board — Determination of air permeance (medium range) — Part 5: Gurley method

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