ISO 9895:2008 PDF

Paper and board — Compressive strength — Short-span test

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Title (English):

ISO 9895:2008

Paper and board — Compressive strength — Short-span test

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 8
Publication date:: October 16, 2008
Edition:: ISO IS 9895 edition 2 version 1
ICS:: 85.060

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Description (English):

ISO 9895:2008 specifies a method for determining the compressive strength in the machine and cross-directions of paper and board using a short-span compressive tester. It is intended for papers and boards used for the manufacture of containers and boxes. ISO 9895:2008 is recommended for papers and boards with a grammage from 100 g/m2 to 400 g/m2.

Technical details

Technical committee: ISO/TC 6/SC 2 - Test methods and quality specifications for paper and board
SKU: ISO 9895:2008

Abstract

Overview

ISO 9895:2008 - Paper and board - Compressive strength - Short-span test specifies a standardized laboratory method for measuring the edgewise (short-span) compressive strength of paper and board used in container and box manufacture. The method uses a short-span compressive tester to determine compressive strength in both the machine direction (MD) and cross direction (CD). ISO 9895:2008 is recommended for papers and boards with a grammage of 100–400 g/m².

Key Topics and Requirements

Test principle: A 15 mm wide strip is clamped across a 0.70 mm ± 0.05 mm free span and the clamps are driven together until compressive failure. The maximum force is recorded.
Apparatus:
- Short-span compressive tester with two clamps 30 mm long and high-friction surfaces.
- Constant clamping force of 2300 N ± 500 N.
- Test speed 3 mm/min ± 1 mm/min.
- Load measurement accurate to ±1% over 10–100% of full scale; device to check clamping force and allow calibration.
Specimens and conditioning:
- Test pieces: strips ≥70 mm long, 15.0 mm ± 0.1 mm wide.
- Cut and condition according to ISO 186 and ISO 187; grammage per ISO 536 if required.
- At least 20 determinations per direction to reduce local variation effects.
Calculations:
- Compressive strength (σC) = mean maximum force (F) / initial width (b) - reported in kN/m to three significant figures.
- Compressive index = (1000 × σC) / grammage (g) - reported in kN·m/kg.
Precision:
- Typical single-lab coefficient of variation

Related standards

Standards mentioned in the description

Overview

Key Topics and Requirements

Test principle: A 15 mm wide strip is clamped across a 0.70 mm ± 0.05 mm free span and the clamps are driven together until compressive failure. The maximum force is recorded.
Apparatus:
- Short-span compressive tester with two clamps 30 mm long and high-friction surfaces.
- Constant clamping force of 2300 N ± 500 N.
- Test speed 3 mm/min ± 1 mm/min.
- Load measurement accurate to ±1% over 10–100% of full scale; device to check clamping force and allow calibration.
Specimens and conditioning:
- Test pieces: strips ≥70 mm long, 15.0 mm ± 0.1 mm wide.
- Cut and condition according to ISO 186 and ISO 187; grammage per ISO 536 if required.
- At least 20 determinations per direction to reduce local variation effects.
Calculations:
- Compressive strength (σC) = mean maximum force (F) / initial width (b) - reported in kN/m to three significant figures.
- Compressive index = (1000 × σC) / grammage (g) - reported in kN·m/kg.
Precision:
- Typical single-lab coefficient of variation

ISO 9895:2008 PDF

Technical details

Abstract

Overview

Key Topics and Requirements

Related standards

Abstract

Overview

Key Topics and Requirements

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