• McCampbell Analytical, Inc.
  • Connected With Us
  • 1534 Willow Pass Road Pittsburg, CA 94565

Full-Service Environmental Laboratory with 35 Years of Proven Quality and Expertise

Accredited Testing. Fast Turnaround. Trusted Results

  • Certified & Accredited (NELAP • ELAP • DoD • USDA • AIHA-LAP)
  • Rapid Turnaround Times & Responsive Service
  • Experienced Support for Complex Projects

SPOTLIGHT: Dredge & Sediment Testing

Comprehensive sediment testing to support dredging projects, disposal determinations, beneficial reuse evaluations, and regulatory compliance requirements.

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Respirable Crystalline Silica Testing

Trusted XRD analysis for respirable crystalline silica in workplace air samples. McCampbell Analytical delivers fast turnaround times and accurate results to support exposure monitoring, OSHA compliance, and occupational health investigations.
Respirable Silica Testing

Respirable Crystalline Silica Testing

McCampbell Analytical, Inc. (MAI) provides accurate and dependable respirable crystalline silica (RCS) analysis for workplace air samples. We support industrial hygienists, environmental consultants, contractors, and employers with the data needed to evaluate worker exposure, investigate occupational health concerns, and meet OSHA and Cal/OSHA monitoring requirements.

Our laboratory uses proven analytical techniques to identify and quantify crystalline silica forms, including quartz, cristobalite, and tridymite, helping clients understand potential exposure risks across construction, manufacturing, mining, aggregate processing, and other industrial operations. With responsive service and fast turnaround times, MAI delivers the reliable results you need to make informed decisions.

What is Respirable Silica?

Respirable crystalline silica (RCS) refers to very fine silica dust particles that can penetrate deep into the lungs and pose serious health risks if inhaled during industrial activities.

OSHA and Cal/OSHA set exposure limits and monitoring requirements for respirable silica to protect workers from lung disease and other health effects.

What Our Silica Testing Can Determine

  • Identification and quantification of crystalline silica forms
  • Differentiation between quartz, cristobalite, and tridymite
  • Evaluation of worker exposure to respirable crystalline silica
  • Analysis of respirable dust filters and air sampling cassettes
  • Support for OSHA and Cal/OSHA exposure monitoring programs
  • Clear, defensible reporting for occupational health investigations
  • Analysis of very small samples (as low as 1–50 mg)

Respirable Crystalline Silica (RCS) Testing — NIOSH 7602

MAI offers respirable crystalline silica testing following the NIOSH 7602 infrared spectroscopy method. This analysis is essential for evaluating exposure in industries such as:

  • Construction & demolition
  • Concrete cutting & drilling
  • Manufacturing & fabrication
  • Environmental & industrial hygiene consulting
  • Mining, aggregates, and materials processing

Our RCS Testing Includes

  • Quartz and cristobalite quantification
  • Analysis of respirable dust filters and cassettes
  • Support for OSHA, NIOSH, and Cal/OSHA (Title 8) compliance
  • Clear, defensible reporting

Who We Serve

As a Bay Area laboratory serving clients since 1991, MAI supports:

  • Environmental & industrial hygiene consultants
  • Construction contractors & engineering firms
  • Manufacturers & process facilities
  • Universities, research groups, and R&D labs
  • Cement, aggregate, mining, and materials industries

Need broader material identification? MAI also offers X-Ray Diffraction (XRD) analysis for crystalline compound identification and phase characterization of industrial materials and unknown solids.

Local service means faster turnaround, reduced shipping time, and direct communication with our analytical team.

Sample Submission Guidelines

For XRD Samples

  • Minimum 50 mg recommended
  • Dry, clean container preferred
  • Separate layers or mixed materials if applicable

For Respirable Silica Samples

  • Submit air cassettes or filters unopened
  • Include total sampled air volume
  • Provide project type (construction, IH, manufacturing, etc.)


FAQs

What is the turnaround time for XRD or silica testing?

Standard turnaround is several business days, with expedited options available.

Can XRD identify small quantities of crystalline material?

Yes. XRD can detect and quantify crystalline phases even in complex mixtures.

Do you help determine which test I need?

Absolutely—our analysts can review your project needs and recommend the appropriate method.

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