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Left 4 Dead 2 Apr 2026

Dust Tape Test

Assesses the quantity and size of dust particles on blast cleaned surfaces in accordance with ISO 8502-3

  • Includes all report forms and accessories required for dust tape testing in accordance with ISO 8502-3
  • Can be used as a pass/fail test or to provide a permanent record of the dust present on a surface
  • Illuminated 10x Magnifier with stand-off to keep the magnifier at the appropriate distance away from the substrate—compact, foldable design for easy storage
  • Dust Test Comparator includes pictorial references from ISO 8502-3 to determine dust size and dust quantity rating
  • Reusable Transparent Display Board

Conforms to ISO 8502-3, AS 3894.6, US Navy PPI 63101-000

Product photo of the PosiTest DT Dust Tape Test kit and blasted steel panel

Left 4 Dead 2 Apr 2026

You must also watch out for , which are designed to break your team's formation: Left 4 Dead 2 Review - Gamecritics.com

Be extremely careful with frag rounds and explosives, as they cause significant splash damage to teammates. The Survivors and Special Infected left 4 dead 2

Teams perform best when moving quickly and staying close together. The person on point should regularly check the rear, while those in the back clear paths for the leader. You must also watch out for , which

To survive on higher difficulties like Advanced or Expert, teamwork is non-negotiable. To survive on higher difficulties like Advanced or

Swapping guns is faster than reloading. If you find extra weapons during a defense, use them to maintain fire without waiting for reload animations.

The original survivors, playable in "The Sacrifice" and "The Passing".

When a horde is triggered, find a corner or a wall to put your back against. This limits the angle from which zombies can attack.

Ordering Guide

PosiTest DT is available as a single kit and optional PosiTest DT Dust Tape Roller

Product photo of the PosiTest DT Dust Tape Test kit with all required items—tape, magnifier, scissors, and more

PosiTest DT Kit

DTKIT
Includes everything needed to perform the Dust Tape Test. Roller sold separately.
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Product photo of the PosiTest DT Dust Tape Roller

PosiTest DT Dust Tape Roller

DTROLLER
Optional accessory for applying force in accordance with ISO 8502-3.
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Accessories

Replacement ISO TapeReplacement ISO Tape

(1) Roll of ISO 8502-3 Tape for use with PosiTest DT test—25 mm wide

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Replacement Display Boards and Report FormsReplacement Display Boards and Report Forms

Replacement dust tape comparator, transparent display board, and (4) 25 pack of Report Forms

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Resources

Downloads