CROHMIQ is internationally recognized as the genuine Type D static protective bulk bag packaging technology. The proven safety record of CROHMIQ is unmatched. Over 30 million CROHMIQ FIBC have been safely used, including extensive use in hazardous flammable environments.  Only CROHMIQ's FIBC technology provides a level of safety equal to a properly earthed Type C FIBC, but without the risks of human error. For these reasons, leading global companies have converted from Type B and Type C bulk bags to the optimum safety of CROHMIQ FIBC.  Over 4 million CROHMIQ FIBC have been safely reused after refurbishing.

• To ensure the continued safety of CROHMIQ® fabric, TEXENE regularly conducts tests in its safety performance test laboratory located in Summerville, SC. The most important test that proves the safety of FIBC for use in flammable or explosive atmospheres is the incendivity, or ignition test, conducted according to the International Standard IEC 61340-4-4 Ed. 2.0: 2012. The principle is to fill the bulk bag under test with charged pellets and determine if there are any electrostatic discharges from the surface of the bulk bag with sufficient energy to ignite an approaching gas probe. The test parameters are selected to provide the severest challenge to FIBC so as to ensure they are able to perform safely under worst case conditions.

For more information on ignition testing, read more at: Proving the Safety of CROHMIQ

 

 

 

FIBC are classified according to one of four types. The types are defined by the construction of the bulk bag, the nature of their intended operation and associated performance requirements. The table below identifies which type of FIBC is appropriate depending on the sensitivity to ignition of the product being packaged and of the surrounding atmosphere. The sensitivity to ignition of the product being packaged, i.e. the bulk product, is defined by its minimum ignition energy (MIE). Surroundings are classified in increasing sensitivity to ignition by electrostatic discharges as non-flammable, explosive dust atmosphere or explosive gas or vapour.

FIBC CLASSIFICATION TYPE A, B, C, D

Type A FIBC are made from plain polypropylene or other non-conductive material. Static electricity is generated as products move over the inside surface of FIBC when they are filled or emptied. As there is no static protection provided by Type A FIBC, it is essential that they are not used to store or transport combustible materials or used in flammable or combustible environments.

 

 

 

 

Type B FIBC are similar to Type A FIBC in that they are made from plain polypropylene or other non-conductive material. And like Type A FIBC, Type B FIBC do not have any mechanism for dissipating static electricity. The difference is that Type B bulk bags are made from materials that have a low breakdown voltage to prevent the occurrence of highly energetic, and dangerous propagating brush discharges (PBD). Although Type B FIBC can prevent PBD, they cannot be considered antistatic FIBC because they do not dissipate electrostatic charge and so normal brush discharges can still occur, which can ignite flammable solvent vapours.

 

 

 

 

Type C FIBC are conductive FIBC. Originally they were made from entirely conductive materials. Today, groundable Type C FIBC are more commonly made from non-conductive polypropylene interwoven with conducting yarns, normally in a grid pattern. The interconnection of conductive yarns and the connection to ground or earth are critical to the safe use of Type C FIBC. As with any manual operation, ensuring interconnection and grounding of Type C FIBC is subject to human error.

 

 

 

 

Type D FIBC are made from static protective fabric designed to safely prevent the occurrence of incendiary sparks, brush discharges and propagating brush discharges, without the need for a connection from the bulk bag to ground or earth. As CROHMIQ Type D FIBC protect against incendiary sparks, brush discharges and propagating brush discharges, CROHMIQ can be used safely to package combustible products and for handling products in combustible and flammable environments.

 

 

 

 

For more information on CROHMIQ, please select from the links below:

How CROHMIQ Works

Reasons to Choose CROHMIQ

A Brief History of CROHMIQ

CROHMIQ FAQs

Compliance with FDA and European Food Contact Regulations

Article: Dangers of Combustible Dust

Article: Choosing a Safe Static Protective FIBC

Article: Testing & Certifying the Safety of Static Protective FIBCs

CROHMIQ is a registered trademark of Texene LLC.

If you would like more information on Type A FIBC

If you would like more information on Type B FIBC

If you would like more information on Type C FIBC

If you would like more information on Type D FIBC

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