Laboratory Services
Asbestos

Criterion started in 1986 as an asbestos lab. Jim Weltz, Criterion’s founder, had been dealing with asbestos-in-buildings since it first was recognized as a potential hazard in the early 70’s. Working for a major insurance carrier’s industrial hygiene lab, Weltz was involved with asbestos analyses when methods were being evaluated and implemented.

Today, Criterion’s fully-accredited asbestos lab offers all manner of asbestos-in-air, water and bulk materials analysis.  Whatever your need, talk to Criterion.

  • PLM (Polarized Light Microscopy) US EPA 600/R-93/116 (LOD <1%)
  • EPA Point Count 400 Points (LOD 0.25%)
  • EPA Point Count 1000 Points (LOD 0.1%)
  • PLM Gravimetric Analysis US EPA 600/R-93/116 (LOD <1%)
  • PLM Vermiculite
  • PLM Sediment Analysis – EPA Superfund Site
  • Asbestos by XRD- EPA 600 Friable & Non-friable Bulk Qualitative
  • Asbestos by XRD- EPA 600 Friable & Non-friable Bulk Quantitative (LOD 0.1%)
  • EPA 600/R-04/004 – Weight% Asbestos in Vermiculite (LOD <1%)
  • PCM (Phase Contrast Microscopy) AIR – NIOSH 7400 A&B Counting Rules
  • TEM – Asbestos AIR- AHERA
  • TEM – Asbestos AIR- EPA Level 2 & Level 2 Modified
  • TEM – Asbestos AIR- NIOSH 7402 (TEM)
  • TEM – Asbestos BULK- ASTM, Surface Dust
  • TEM – Asbestos BULK- TEM Bulk, Semi-Quantitative Bulk Building Material