FIBC Classification Type A, B, C, D

FIBC Types

FIBC Classification Type A, B, C, D

Bulk product in FIBCSurrounding
MIE of dustNon-flammable atmosphereDust zones 21-22
(1000 mJ ≥ MIE > 3 mJ)
Gas zones 1-2 (Groups IIA/IIB) or
Dust zones 21-22 (MIE ≤ 3mJ)
MIE > 1000 mJA, B, C, DB, C, DC, D
1000 mJ  MIE > 3 mJB, C, DB, C, DC, D
MIE  3 mJC, DC, DC, D
FIBC Type A
Bulk Bag - Type A FIBC - No Static Protection - Insulating - Non-Conductive

Plain Bag - No Static Protection
Safe use:

  • To transport non-flammable products
  • No flammable solvents or gases present around the bag

Do not use:

  • To transport flammable products
  • When flammable solvents or gases are present around the bag

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FIBC Type B
Bulk Bag - Type B FIBC - Low Breakdown Voltage - Not Inherently Antistatic - Cannot replace Type D

Plain Bag - Low Breakdown Voltage

Prevents Propagating Brush Discharges
Safe use:

  • To transport dry, flammable powders
  • No flammable solvents or gases present around the bag

Do not use:

  • When flammable solvents or gases are present around the bag
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FIBC Type C
Bulk Bag - Conductive Groundable Type C FIBC - Must be Grounded/Earthed - Can be safely substituted by Type D

Interconnected Conductive Threads Dissipates Charge to Ground RG < 108 ohm

Safe use:

  • To transport flammable powders
  • When flammable solvents or gases are present around the bag

Do not use:

  • When ground connection is not present or has become damaged
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FIBC Type D
Bulk Bag: CROHMIQ Type D FIBC - Does not Require Grounding/Earthing - can also be grounded

Does Not Require Grounding/Earthing

Safe use:

  • To transport flammable powders
  • When flammable solvents or gases are present around the bag

Do Not Use:

  • When the surface is heavily contaminated or coated with conductive material such as water or grease
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Note: There is no official standard classification, "Groundable Type D", D+, Dplus or CD. IEC 61340-4-4 Ed. 2.0 & Ed. 3.0 do not permit FIBC to be labelled as D+, CD, etc. Only the official classifications, i.e. Type A, Type B, Type C or Type D can be indicated on FIBC labels. One FIBC cannot be simultaneously classed as more than one type. So, for example, classing FIBC as both Type C and Type D, or labelling as C/D, etc. is not permitted by IEC 61340-4-4 Ed. 2.0 or Ed. 3.0.

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