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ISO 21898:2004(E)Contents

Section 1 – Scope

Section 2 – Normative References

Section 3 – Terms and Definitions

Section 4 – Materials, Construction & Design

Section 5 – Performance

Section 6 – Certification

Section 7 – Marking

Annex A, B, C, D & E

Bibliography

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ISO 21898:2004(E)Section 1 – Scope

Specifies materials, construction and design requirements, type test, certification and marking requirements for FIBCs intended to contain non-dangerous solid materials in powder, granular or paste form, and designed to be lifted from above by integral or detachable devices.

Guidance is also provided on the selection and safe usage of FIBCs.

ISO 21898:2004(E)Section 2 – Normative References

ISO 12048 Packaging – Compression Test

ISO 13934-1 Textiles – Tensile Test

ASTM G154-98 – UV Exposure for Nonmetallic Materials

ISO/IEC 17025 – General requirements for the competence of testing and calibration laboratories

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ISO 21898:2004(E)Section 3 – Terms and Definitions

3.1 General Terms and Definitions

3.2 FIBC Parts

3.3 Operating Devices

3.4 Handling Devices

3.5 Safety and Protection Devices

3.6 Coated and Laminated Materials

3.7 Special Treatments

ISO 21898:2004(E)Section 4.1 – Materials

All components of FIBCs manufactured from materials covered by written specification.

Additives are allowed to improve resistance against heat and sunlight, and to reduce the effects of static electricity.

85% retention of original breaking force when exposed to water for 25 ± 1 hours.

50% retention of original breaking force when exposed to UV-B lamp for 200 hours.

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ISO 21898:2004(E)Section 4.2 – Construction

All stitched seams and joints locked off and/or back sewn or left with 20 mm tail.

All stitched seam-ends secured.

All surfaces joined by welding, gluing or heat-sealing are clean.

ISO 21898:2004(E)Section 4.3 – Design Filling Height

Designed filling height should be between 0.5 and 2 times the shortest horizontal dimension of the FIBC.

Example: FIBC with 36”(L) x 36”(W) can be no less than 18” in height and no more than 72” in height.

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ISO 21898:2004(E)Section 5.1 – Type-Testing

All FIBC types subjected to cyclic top lift and compression/stacking tests

3 samples tested for each FIBC design

Sample 1 shortest in height – cyclic test

Sample 2 tallest in height – cyclic test

Sample 3 tallest in height – compression test

FIBC designs with only one fixed height require only 1 cyclic and compression test

ISO 21898:2004(E)Section 5.2 – FIBC Preparation

Filled to 0-5% from maximum height

Filled with material such as plastic granules

Material bulk density of 500-900 kg/m³

Material mesh size of 3-12 mm

Material angle of repose of 30-35º

Actual contents allowed

Conditioned at ambient temperature and relative humidity or at 23±2ºC and 50±5%RH

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ISO 21898:2004(E)Section 5.3 – Test Requirements

Cyclic top lift test conducted per Annex B

No breakage of lifting devices

No protrusion of the liner beyond FIBC

No loss of contents

No deterioration of body which renders FIBC unsafe for transport or storage

Slight discharge during test acceptable provided no further leakage occurs

ISO 21898:2004(E)Section 5.3 – Test Requirements

Compression test conducted per Annex C

No loss of contents

No deterioration of body which renders FIBC unsafe for transport or storage

Slight discharge during test acceptable provided no further leakage occurs

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ISO 21898:2004(E)Section 6 – Certification

Contain name, address and test station of certifying body together with references and date of test report

Material contents used for testing

Valid for 3 years from date of issue

Certified and marked FIBCs for Single-trip not to be reused

Certified and marked FIBCs for Multi-trip reused only with contents as first use

ISO 21898:2004(E)Section 7 – Marking

Durably marked by permanent label or print

Name and address of manufacturer

Specific FIBC design number

Safe working load, safety factor and class

Reference to ISO 21898

Test lab with certificate or test number

Date of manufacture

Handling methods, pictograms, etc.

Reference label recommended by FIBCA

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ISO 21898:2004(E)Section 7 – Marking

ISO 21898:2004(E)Annex A – UV Resistance Test

Test apparatus in accordance to ASTM G154

10 control samples and 10 UV samples

Sample sets of 5 warp and 5 weft direction

Expose UV test samples to fluorescent UV-B lamp for at least 200 hours

Cycling between UV radiation for 8 hours at 60ºC and condensation for 4 hours at 50ºC

UV test samples to retain 50% of the original breaking force of control samples

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ISO 21898:2004(E)Annex B – Cyclic Top Lift Test

FIBC suspended by its lifting devices

Pressure plate positioned on top of contents

FIBC subjected to repeated loading and unloading while the force is recorded

Pressure plate covers 60-80% surface area

Force applied at a rate of 70±20 kN/min

Dwell period no more than 30 seconds

FIBC may be taken to failure after final cycle

ISO 21898:2004(E)Annex B – Cyclic Top Lift Test

Single-Trip FIBC Design Types30 Cycles at 2x SWLFinal Cycle at 5x SWL

Standard-Duty FIBC Design Types70 Cycles at 4x SWLFinal Cycle at 6x SWL

Heavy-Duty FIBC Design Types70 Cycles at 6x SWLFinal Cycle at 8x SWL

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ISO 21898:2004(E)Annex C – Compression Test

FIBC compressed to specified test load

Test apparatus in accordance with ISO12048

Use compression tester or dead load weights

Test load equal to 4x SWL

Test duration of 6 hours

ISO 21898:2004(E)Annex D – Guidance, Selection, Use

D.1 General D.2 Selection of FIBCs D.3 Storage of empty FIBCs D.4 Filling FIBCs D.5 Stability of filled FIBCs D.6 Lifting of filled FIBCs D.7 Storage of filled FIBCs D.8 Emptying of filled FIBCs D.9 Inspection of heavy/standard duty FIBCs D.10 Repair of heavy-duty FIBCs

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ISO 21898:2004(E)Annex E – Design of FIBCs

Illustrations of some FIBC features including fill spouts, discharge spouts, handling devices, top panels and bottom panels.

Not all designs are illustrated.

Informative Information

ISO 21898:2004(E)Bibliography

ASTM G154-98, UV Resistance Test

ISO/IEC Guide 65, General Requirements for Bodies Operating Product Certification Systems

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ISO 21898:2004(E)Test Photos

TEN-E Packaging Services, Inc.1666 County Road 74, Newport, MN 55055, 651-459-0671www.ten-e.com paul.mathson@ten-e.com