• Desco
  • EMIT
  • ESD Systems.com
  • Menda Pump
  • Menda-ID
  • Protektive Pak
  • SCS
  • Smart Clock
  • Special Team
  • Statguard Flooring

ESD Superstore – Online Leader for ESD Solutions
000 Checkout

Added to your cart

You do not have any items in your shopping cart at this time.
View All cart items

  Shop from our other Desco
  Industries websites:

Desco Europe

Asia

Questions And Answers

# List All Questions Search List by Category
Question What is the difference between conductive and dissipative matting? - Anonymous, ., ., CA,
Answer Materials are either conductors or non-conductors. Non-conductive material is also called insulators and have a resistance of over 1 x 10^11 ohms. Dissipative material refers to a range of conductive material; greater than 1 x 10^4 ohms and less than 10^11 ohms which has the ESD control benefit of more slowly removing electrostatic charges to ground. So for ESD control purposes conductive refers to material less than 10^4 ohms.
The minimum recommended technical requirement of ANSI/ESD S20.20 for ESD worksurfaces and floors is less than 1 x 10^9 ohms (see Table 1). The reason for this is that if a worksurface material resistance is too high (>1.0 X 10^9 ohms RTT and/or RTG) it will not provide a surface that is sufficiently ‘conductive’ to provide an effective surface to ‘ground’ conductive or dissipative items or materials placed on the surface.
However, typically, we recommend dissipative ESD Mats for worksurfaces, specifically 10^6 to 10^8 ohms. This is in accordance with ESD Association ESD S4.1 and ESD-ADV53.1 Electrical Requirements, ‘Worksurfaces - Resistance: Between 1 x 10^6 ohms and 1 x 10^9 ohms’ If the ESD worksurface is too conductive (<1.0 X 10^6 ohms RTT and/or RTG), it can discharge charged ESDS devices too quickly and possibly cause device damage via the Charged Device Model (CDM).
Typically, we recommend more conductive mats for floors; most of the ESD Systems.com Statfree® conductive mats are 10^3 to 10^5 ohms (in the upper conductive range or low dissipative range). Since dirt and other contaminant are typically insulators, the flooring will measure less than 10^9 ohms throughout the maintenance cycle.
 
If you have found this Q/A useful, please rate it based on its helpfulness.
Rating Rating Rating Rating Rating
This question has been rated: 85%85%85%85%85%85%
(85% at 4 Ratings)