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Blowing sand
blowing dust

Environmental simulation
Test procedure

Blowing dust / blowing sand tests are executed to judge the influence of dust and/or sand on various objects. These tests may cause different types of failure, such as:



  • penetration into cases or housings
  • change of electrical properties (faulty contacts, change of contact resistance, change of comparative tracking index, etc.)
  • jamming or stiffening of movable parts (bearings, axles, pivots, etc.)


  • surface abrasion
  • damage to optical surfaces
  • contamination of lubricants
  • obstruction of ventilation inlets/outlets, pipes, filters, openings, etc.



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Equipment

Blowing Sand
Temperature range: room temperature up to +90°C
Wind velocity: max. 60m/s
Sand concentration: up to 5g/m3
Impact area: 505mm x 635mm (WxH)
Chamber volume: 3000mm x 2800mm x 3000mm (WxHxD)

Blowing Dust
Temperature range: room temperature up to +85°C
Wind velocity: max. 10m/s
Sand concentration: up to 20g/m3
Impact area: 200mm x 400mm (WxH)
Chamber volume: 950mm x 1900mm x 950mm (WxHxD)
Blowing Sand Test on a rocket dummy
Standards

  • DIN EN 60068-2-68

    Environmental testing - Part 2: Tests; test L: Dust and sand
  • DIN 40050 part 9

    Road vehicles; degrees of protection (IP-code); protection against foreign objects; water and contact; electrical equipment
  • DIN SPEC 79009

    planned standard for E-Bikes and Pedelecs
  • Protection class IP 5X and 6X
  • IEC 529

    Protection classes
    TabelleVII Fig. 2
  • IEC 34-5 Fig. 2

    Schutzarten umlaufender elektrischer Maschinen
  • IEC 144

    Schutzarten
  • DIN EN 60529

    Schutzarten durch Gehäuse
  • VDE 0470 part 1

    Degrees of protection provided by enclosures (IP code)
  • DIN 40046

    Environmental testing procedures for electrical engineering; test group L: dust and sand

    parts 46, 47, 48 tests La, Lb, Lc
  • DIN 40052

    Degrees of protection provided by enclosures; test to check protection against ingress of solid foreign bodies, dust chamber
  • MIL-STD-810G

  • RTCA DO-160

  • AECTP 300-3

  • MIL-STD-202D

    Test Method Standard - Electronic and Electrical Component Parts
  • MIL-E-5272

    Environmental Testing - Aeronautical And Associated Specification
  • MIL-C-9436

    Chamber, Sand And Dust Testing
  • MIL-STD-331

    Fuze and Fuze Components, Environmental And Performance Tests For
  • DEF STAN 00-35 Issue 4 Part 3

    Environmental Test Methods
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