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 :The designation, Not Applicable (N/A), is applied to methods where no quantitative data are collected:


 * Procedures for sample collection only. The collected samples are analyzed subsequently by an appropriate analytical method, e.g., the Lead Wipe procedure (NMAM 9100) where the samples are analyzed by one of the three lead analysis methods.


 * Qualitative methods that indicate results as positive or negative, e.g., Lead spot test (NMAM 7700), or Mycobacterium Tuberculosis by PCR (NMAM 0900).

6. USER EXPERIENCE WITH THE METHODS

NIOSH seeks to make these methods useful in industrial hygiene analyses. Therefore, the experience of people using the methods is important to us. Suggestions for improvement and questions relating to this Manual are welcome and should be directed to the Manual Coordinator. A comment form has been included in the back of this Manual for this use; it can be mailed or FAXed. 1/15/98