OSHA Silica Rule Update

Key Provisions

  • Reduces the permissible exposure limit (PEL) for respirable crystalline silica to 50 micrograms per cubic meter of air (50 µg/m3 ), averaged over an 8‐hour shift.
  • Implements an Action Level of airborne respirable crystalline silica of 25 micrograms per cubic meter of air (25 µg/m3 ), averaged over an 8-hour shift.
  • Requires employers to institute engineering controls where feasible, such as exhaust ventilation or wet cutting.
  • Requires employers to provide respiratory protection until engineering controls are instituted, or not feasible, and to control access to areas where exposures might exceed the PEL.
  • Requires employers to provide medical exams to monitor highly exposed workers and gives them information about their lung health.

Industries and Operations in Which Exposure to Crystalline Silica Can Occur

  • Construction
  • Demolition
  • Glass products
  • Pottery products
  • Structural clay product
  • Concrete products

Industries Affected

Construction, Hydraulic Fracturing, Maritime, and General Industry

EMSL Analytical, Inc. is accredited to ANS/ISO/IEC Standard 17025:2005 with respect to Crystalline Silica through the American Industrial Hygiene Association (AIHA)

  • Rigorous Quality Control (QC) program to provide accurate and defensible data
  • Respirable Dust/Silica Sampling Kits available at no additional charge
  • Multiple accredited EMSL Analytical, Inc. laboratories and XRD instruments for unmatched silica capacity and geographic coverage
  • Two CIH’s on staff to assist with silica sampling, analytical results interpretation and OSHA compliance questions

EMSL Analytical, Inc. provides independent crystalline silica analysis by NIOSH 7500 and OSHA ID-142 using X-Ray Diffraction (XRD). Our three AIHA-LAP, LLC accredited laboratories located in Cinnaminson, NJ, Indianapolis, IN, and Huntington Beach, CA meet the current OSHA Appendix A of 29 CFR 1910.1053 (General Industry and Marine) and 29 CFR 1926.1153 (Construction) guidelines for silica analysis.

EMSL Silica Testing Lab Locations

EMSL – East Coast
200 Route 130 North
Cinnaminson, NJ 08077
AIHA-LAP, LLC
Industrial Hygiene (IHLAP)
Laboratory ID: 100194
XRD: NIOSH 7500M and
OSHA ID-142M
Gravimetric: NIOSH 0500
and NIOSH 0600

EMSL – Midwest
6340 CastlePlace Drive
Indianapolis, IN 46250
AIHA-LAP, LLC
Industrial Hygiene (IHLAP)
Laboratory ID: 157245
XRD: NIOSH 7500M and
OSHA ID-142
Gravimetric: NIOSH 0500
and NIOSH 0600

EMSL/LA Testing – West Coast
5431 Industrial Drive
Huntington Beach, CA 92649
AIHA-LAP, LLC
Industrial Hygiene (IHLAP)
Laboratory ID: 101650
XRD: NIOSH 7500 and
OSHA ID-142
Gravimetric: NIOSH 0500
and NIOSH 0600

Sampling Recommendations

SamplesRL (ug)Action LevelOSHA PELRecommended Volumes
(ug/m3)(ug/m3)To Achieve PELTo Achieve Action Level
Alpha Quartz52550300L600L
Cristobalite102550300L600L
Tridymite102550300L600L
All 3 Species102550300L600L

EMSL Sampling Kits

  • EMSL Parallel-Particle Impactor (PPI) Kit
  • Available Flow Rates: 2LPM, 4LPM, 8LPM
  • Pump/ Charger, Tubing and Clip, Rotameter, PPI *Impactor purchased separately*
  • EMSL Cyclone Sampling Kit
  • Available Flow Rate: 2.5LPM
  • Pump/Charger, Tubing and Clip, Rotameter, Aluminum Cyclone *Nylon Cyclones Also Available*

EMSL Impactors and Media

  • Disposable PPI Impactor (2, 4, 8 LPM) with Pre-Weighted Filter
  • Disposable PPI Impactor (2, 4, 8 LPM) with Non Pre-Weighted Filter1
  • Also Available: Reusable PPI Impactors
  • Gravimetric Pre-Weighed PVC Cassette
  • Non Pre-Weighed PVC Cassette

1Non Pre-Weighed filters prohibit reporting of Respirable Dust. If respirable dust is required, a Pre-Weighed Filter MUST be used.
RL = Reporting Limit
PEL = Permissible Exposure Limit
EMSL’s Services are subject to Terms and Conditions noted in EMSL’s T&C section located in the Lab Services Guide.

EMSL Technical Contacts

Scott Van Etten, CIH
National Director of
Industrial Hygiene
PH: 856.303.2558
SVanEtten@EMSL.com

Vince Daliessio, CIH
Industrial Hygiene Project
Manager
PH: 856.303.2559
VDaliessio@EMSL.com

Michael Chapman
Industrial Hygiene
Manager
PH: 714.828.4999
MChapman@EMSL.com

For More Information on Our Lab Testing Services, Pricing, Sampling Guides, or Products:

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