ASTM D4766

ASTM D4766 is the standard for determining vinyl chloride in workplace atmospheres using the charcoal tube method. It provides a recognized approach for sampling and evaluating airborne vinyl chloride where exposure control matters. As a technical document, it supports consistent testing practices and helps users compare results with greater confidence. For organizations that monitor workplace air quality, this standard offers a practical reference for routine assessment, compliance-related work, and quality-focused industrial hygiene programs.

ASTM D4766 standard overview

The ASTM D4766 standard focuses on a specific method for measuring vinyl chloride in workplace air by using a charcoal tube sample collection approach. Its value lies in offering a structured, repeatable way to capture and assess this compound in occupational settings. The official standard title indicates both the target analyte and the sampling medium, which makes the document especially relevant for air monitoring tasks that depend on consistent field collection and laboratory evaluation.

Where is ASTM D4766 used?

This standard is commonly used in workplace air monitoring workflows where vinyl chloride exposure may need to be checked with a charcoal tube sampling method. It is relevant to industrial hygiene teams, environmental health programs, and laboratory services that support occupational testing. ASTM D4766 may also be used during routine surveillance, exposure verification, or method-based compliance activities when a defined standard is needed to guide sampling and analysis in a workplace atmosphere.

Practical importance of ASTM D4766

ASTM D4766 matters because it helps create consistency in how vinyl chloride is measured in workplace atmospheres. That consistency supports better comparison of results over time and across different testing programs. For users involved in compliance, procurement, or quality control, a recognized ASTM standard can reduce ambiguity and improve confidence in air-monitoring decisions. It also helps align testing practice with a clear, documented method instead of ad hoc procedures.

• Workplace atmosphere sampling
• Vinyl chloride measurement
• Charcoal tube collection method
• Occupational air monitoring
• Testing consistency and compliance support