The Belgian packaging Institute (IBE-BVI) has since some time brand new test and research facilities for Flexible Intermediate Bulk Containers (FIBC’s). IBE-BVI is active in this area since 1986. Due to the growing demand, BPI has built a completely new automated device that complies with the existing standards and regulations. Testing of FIBC’s can be split into two categories namely:
- testing on FIBC’s used for non-dangerous goods
- testing on FIBC’s used for hazardous material.
FIBC’s for the transport of hazardous good
The UN-regulation requires 6 tests:
- Top lift test
- Drop test
- Righting test
- Topple test
- Stacking test
- Tear test
The FIBC’s are intended for the transport of solids only.
Family certification is possible. In this case a UN-certificate is valid for all FIBC’s between the smallest and the biggest size.
ISO 21898 Flexible intermediate bulk containers (FIBCs) for non-dangerous goods
Type B FIBC test
Type B FIBC are designed to prevent the occurrence of sparks and propogating brush discharges & acceptable for use in non-flammable atmosphere & dust zones 21-22.
Breakdown Voltage should be equal to or less than 6 kV (all uncoated and coated bags).
The Belgian Packaging istitute has the equipment to measure this.
Type C FIBC test
Type C FIBC are made from conductive fabric or plastic sheet, or interwoven with conductive threads or filaments and designed to prevent the occurrence of incendiary sparks, brush discharges and propagating brush discharges.
Type C FIBC are designed to be connected to earth during filling and emptying operations.
The resistance to groundable points limit has been reduced to 1.107.
UV testing on laboratory level – as in ASTM G53 – allows us to perform short term qualitative controls on materials instead of exposing the material during 5 to 10 years at the sunlight.
The equipment has to comply with ASTM G53/96 and equipped with fluorescent UV-B lamps.
The test samples are exposed in alternation to UV light and condensation in a repetitive cycle of 200 hours.
The test cycle includes 8 hours UV radiation at a temperature of 60° C followed by 4 hours condensation at 50°C.
After 200 hours exposure, the breaking strength and extension are determinated in accordance with ISO 13934-1.
The obtained values are compared with the test samples conditioned in the dark on cool temperature.
All load bearing materials of the FIBC must – after testing – maintain 50% of their original breaking strength and extension.