Volume 2, Issue 4 (April 2005)

    Evaluation of Quartz Residue on Cassette Interiors of AIHA Proficiency Samples

    (Received 28 April 2004; accepted 28 September 2004)

    Published Online: 2005

    CODEN: JAIOAD

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    Abstract

    Air generated quartz samples have been used for many years in the American Industrial Hygiene Association (AIHA) Proficiency Analytical Testing (PAT) program. It has been observed by the Wisconsin Occupational Health Laboratory (WOHL) that there is material adhering to the cassette interior of several PAT samples. WOHL has collected data on this problem for a number of AIHA PAT rounds and found that the cassette tops can contain a significant amount of quartz. Using data collected from PAT Rounds 146–155, it was found that half of the samples contained quartz on the cassette interior above the WOHL reporting level (RL) of 10 µg. The quartz on the cassette interior is one possible explanation for some of the performance issues found in laboratories participating in the AIHA PAT proficiency program. This problem is not unique to PAT samples. WOHL has noticed the same issue with field samples, which can lead to lower levels of quartz being reported.


    Author Information:

    Dobson, LR
    Chemist, Chemist Supervisor, and QC Coordinator, Wisconsin Occupational Health Laboratory, Madison, WI

    Reichmann, L
    Chemist, Chemist Supervisor, and QC Coordinator, Wisconsin Occupational Health Laboratory, Madison, WI

    Popp, D
    Chemist, Chemist Supervisor, and QC Coordinator, Wisconsin Occupational Health Laboratory, Madison, WI


    Stock #: JAI12229

    ISSN: 1546-962X

    DOI: 10.1520/JAI12229

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    Author
    Title Evaluation of Quartz Residue on Cassette Interiors of AIHA Proficiency Samples
    Symposium Silica: Sampling and Analysis, 2004-04-23
    Committee D22