NYC-WTC_000205691

NYC 9/11 Public Portal Document

INDEPENDENT TESTING LABORATORIES, INC. "SERVING INDUSTRY WOFVDWfDE SINCE 1376* 129.. 11 IHfk .Avenue - College Po.ini, 11356 (718)961-8530 Ifax (718) 762^133'^

Page 2 of 2 Marchis, 2003 CLIENT: I-MesaB.C.L

PLM POINT COUNT ANALYSIS REPORT PERFORMED >Y EPA 600/R-93 /116 METHOD, *

Sample {Sample Appearance Asbestos Non^Asbeatos W Description % Type % Fibrous : % Non«ribroaa A2546 (1) DUst Sample : Various 4% Chiysotil^ 10% CcUuloSc : 46% Other ion Roof ; Fibrous 20% Fiber Glass { Heterogeneous 20% Min. Wool A2546 (2) Dust Sample i Various 3% Chrysotile 10% Cellulose 67%Oth8r ion Roof Fibrous 10% Fiber Glass Heterogeneous 10% Min. Wool .A2546 (3) Dust Sample Various 4% Chrysotile 10% Cellulose 67% Other ion Roof Fibrous Trace Amosite 10% Fiber Glass Heterogeneous 10% Miu. Wool PLM Z NOB

Comments; Fpr all obviously heterogeneous samples easily separated into subsamples, and for layered san^ples, each component is analyzed separately. Also of Layers” refers to number of separable subsamples. • NY samples Analyzed by ELAP 198.1 method

* Disclaimer: {Polarized Light Microscopy is not reliable in detecting asbestos in floor coverings and similar non-friable organically bound materials (NOBs). Results <1% are inconclusive arid quantitative TEM is currently the only method which can be used to determine if this material Can be considered or treated as con-asbestos containing. CITY_21MC1OO_OO3OO8816

NYC-WTC_000205692