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This sampling guide provided by the Wisconsin Occupation Health Laboratory (WOHL) will help you select apropriate sampling media, volumes and methods for a wide range of analyses. WOHL can perform analyses by methods other than those listed. However, please contact the laboratory before sending samples requiring a method not listed in this guide.

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The methods listed are current and where appropriate updates or replacements will be noted. Notification of changes will also be published in our newsletter Reactions.

Here are PDF versions of our WOHL Sampling Guide
and 2013 WOHL Fee Schedule (NOTE: same prices as 2012) that you can download and/or print. For the free PDF reader, please click here.

The sampling guide contains sections describing some of our specialized analyses. These sections describe in detail our methods for solvent scans, pesticide scans, particle identification, and environmental microbiology. Please take a few minutes to look over these sections.

We would appreciate your suggestions and comments on how we may improve our service to you. Please call our toll-free number, 800-446-0403, and speak with me or one of our customer service representatives. You can also communicate with us, order media, and read the current issue of Reactions newsletter on this website.

You can now use the menu to the left to begin using the Sampling Guide, or you can choose one of the following links:General Information; Symbol Explanation; Ordering Supplies; Specialized Services.