FIBC Comparisons

Q: What is a Type A bulk bag and when should you choose it?

A Type A FIBC is a standard bulk bag made from woven polypropylene without static electricity. These bulk bags should not normally be used where a flammable atmosphere with Minimum Ignition Energy (MIE) 1,000mJ is present. They are not treated and do not provide electrostatic protection for your application.The Type A Bulk Bag does not have any mechanism for dissipating static electricity and will not prevent the occurrence of highly energetic, and dangerous propagating brush discharges (PBD). These bags should not be used to carry flammable solvents or gases. At Elway Industries, we pride ourselves with the shortest lead time in the industry for Type A bulk bags.When to Use a Type A Bulk Bag:To transport non-combustible solids, nonflammable materials, non-flammable gases, and non-flammable solventsDo not use when:A flammable atmosphere is present with a Minimum Ignition Energy (MIE) 1,000mJType A FIBC More InformationType A Bulk Bag SpecificationsType A bulk bags can be custom-made to customer specifications.*Custom dimensions available at no additional chargeType A FIBC ConfigurationsThe most common materials used include standard polypropylene fabric and non-conductive material. These bags can be either coated or uncoated. Since there are no requirements for static control in this type of bulk bag, there are no electrostatic tests specified in the standards and no requirements for labeling.Common ApplicationsCommon products that use Type A bulk bags include:Non-combustible solidsNon-flammable materials, gases, or solvents

Q: What is a Type B bulk bag and when should you choose it?

FIBC Type B are made from insulating fabric and usually has a voltage range of less than 6 KV. Elway manufactures these bags using plain polypropylene or other non-conductive material, and like Type A bulk bags these bags 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). It is important to note that these bulk bags can cause electrostatic shocks to operators, although shocks are not dangerous, they can be distracting and may lead to accidents.When to Use a Type B Bulk Bag:To transport dry, flammable productsDo not use when:A flammable gas or solvent is present in the atmosphere around the bagType B FIBC More InformationFIBC Type B SpecificationsElway can provide custom Type B Bulk Bags that can meet various specifications.*Custom dimensions available at no additional chargeType B Bulk Bag RequirementsWe perform several tests for this bag including electrical breakdown voltage and propagating brush discharge testing.FIBC Type B ApplicationsSafe use for this type include:Transporting dry, flammable productsEnvironments with dustEnvironments with ignition energies less than 3mJ

Type A, B, C, and D Crohmiq Blue ® bulk bags are four different types of bulk bags, and each of these bags has unique features and is designed for a wide range of applications.

There are a lot of different factors that go into choosing the correct bulk bag for your application. When deciding on the proper bulk bag, you should consider the environment you will be using your bulk bag in, the materials you will be transporting, and the factors unique to the industry you work in.

Type A Bulk Bag – A standard bulk bag with no static protection

Type C Bulk Bag – A standard bulk bag made with inter-connected static dissipative fabrics

Type D Bulk Bag – A standard bulk bag made with antistatic and static dissipative fabrics

What is a Type A bulk bag and when should you choose it?

What is a Type B bulk bag and when should you choose it?

What is a Type C bulk bag and when should you choose it?

What is a Type D (Crohmiq Blue ®) bulk bag and when should you choose it?

Type D or CROHMIQ ® Static Protective bulk bags are constructed from fabrics with static dissipative properties or threads to control fire-starting of discharges regardless of whether it's electrically grounded or ungrounded. Anti-static FIBC Type D bulk bags do not require grounding or earthing because they are made from conductive fabric designed to safely prevent the occurrence of incendiary sparks, brush discharges, and propagating brush discharges.

When to Use a Type D Bulk Bag:
To transport flammable powders and combustible solids with MIE less than 3mJ
Do not use when:

A surface is contaminated or coated with conductive material such as water or grease

Type D (Crohmiq Blue ®) FIBC More Information

Type D Bag Specifications
Type D bulk bags can be constructed to customer specifications.
*Custom dimensions available at no additional charge

FIBC Type D Requirements
To ensure the quality of our products, tests are performed to meet Type D bulk bag requirements including electrical breakdown voltage and propagating brush discharge testing. Type D bulk bags also require discharge incendivity testing.
Type D Bulk Bag Applications
Common uses for this bulk bag include:

Transporting flammable powders safely
When loading and unloading in the presence of flammable vapors and gases with MIE greater than 0.14mJ
Combustible solids with MIE less than 3mJ
Do not use when the surface is contaminated or coated with conductive material such as water or grease
Static Protective Fabric

Bulk materials can create static energy during the filling and discharge process, this can cause an electrostatic discharge in the bulk bag and around the surface. Crohmiq Blue ® is a woven polypropylene static protective fabric for Type D FIBC bulk bags and it’s engineered to work safely in the presence of flammable materials, dust, or gases in the atmosphere.

The CROHMIQ® static protective FIBC fabric safely dissipates charge into the atmosphere by a process called corona, providing safety not only to the customer but also to his employees from an electrostatic discharge.
Additionally, the properties of this fabric are permanent, so its static dissipative performance won’t decay with time nor will wash off during the wet reconditioning process. As a result, over 6 million CROHMIQ® FIBC bags have been safely reused after wet or dry-process refurbishment!

Today, over 50 billion pounds of products have been packaged in CROHMIQ® FIBC. Some common uses for this product are:

Storage for chemicals
Storage for minerals
Storage for pharmaceuticals
Storage for combustible-related products

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