Antistatic Bags

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To contact us:

Phone: + 612-8819 6401

Fax:      + 612-9804 0665

Mobile: + 61-419-401 610

E-mail: massoud@ozbulk.com.au  

Antistatic Bags

Type B

Type C

Type D

Different Types of Antistatic FIBC

 

FIBC Type A

FIBC Type A are made from non-conductive fabric and provide no protection against

static electricity.

FIBC Type B

FIBC Type B are made from non-conductive fabric. They differ from FIBC Type A

in that the breakdown voltage through the fabric, including any coating, shall

be low enough to prevent propagating brush discharges.

Spark discharges may occur from the surface of FIBC Type B if they become

contaminated or coated with conductive material (e.g. water, grease or oil).

Precautions should be taken to avoid such contamination and to avoid conductive

objects such as tools or metal clips being placed on the FIBC.

FIBC Type C

FIBC Type C are made entirely from conductive fabric or from a non-conductive

fabric with interconnected conductive threads or filaments. The pattern of

conductive threads or filaments is either:

• a grid enclosing an area of non-conductive fabric no greater than 25 cm2,

• or a 20 mm stripe, in which case each thread or filament must be

interconnected at two separate places (usually at both ends).

FIBC Type C must be provided with a grounding point to which all conductive

panels, threads or filaments are electrically bonded. The resistance to the

grounding point from anywhere on a conductive fabric and from conductive threads

or filaments must be less than 108 Ω.

The lift loops of FIBC Type C must also contain conductive threads or filaments

with a resistance to the grounding point of less than 108 Ω.

FIBC Type C must also meet the breakdown voltage requirements of FIBC Type B.

In order to prevent spark discharges that might ignite a flammable or explosive

atmosphere, it is essential that FIBC Type C are always securely grounded. A

label should be attached to the FIBC indicating the position of the grounding

point(s) and clearly stating the requirement for grounding.

FIBC Type D

FIBC Type D are made from fabric that allows charge to be dissipated without

being connected to ground. FIBC Type D fabrics usually contain conductive

threads or filaments that dissipate charge safely into the atmosphere by low

energy corona discharges. Some FIBC Type D have low resistively coating that

may reduce the risk of incendiary discharges.

Grounding of FIBC Type D is not required.

To be qualified as safe for use in the presence of flammable or explosive

atmospheres it must be first demonstrated that FIBC Type D do not produce

incendiary discharges under realistic conditions.

Note: The conditions and procedures of test used to demonstrate the absence of

incendiary discharges are specified in the draft IEC/ISO 61340-4-4.

FIBC Type D must also meet the breakdown voltage requirements of FIBC Type B.

Ungrounded conductors such a metal drums or people may become charged when

positioned close to some FIBC Type D. It is essential to follow normal safe

practice and ensure that all conductors are grounded in the presence of flammable

or explosive atmospheres.

Spark discharges may occur from the surface of FIBC Type D if they become

contaminated or coated with conductive material (e.g. water, grease or oil).

Precautions should be taken to avoid such contamination and to avoid conductive

objects such as tools or metal clips being placed on the FIBC.