NYC-WTC_000202493

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE; T^olume (liters'): 1920 Lab Group #: 8809 Filter Type / Filter Area: -MCE 385 mm’ I / Lab Sample #: 9 Grid Opening Size: 0101124 Area Examined: 0.04496 mm’ I Client Sample #: 09 ) 7 GRID BOX: Magnification: 20,000 ■ it- GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/5/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorT ■ EDS - I ■ ' (Nonadb No • F B C M >=05-m >=5p : Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

1 I ■

f I - ■

I

i 77 ; j / Struct = > 0.5 u.> 5:1 Aspect Ratio . Grid acceptance: A/i Positive diffraction paftem properties conforming to ^^0% Totals laboratory identification criteria observed least 2C unfolded or overlapped grid squares <5% F B G M >5p 7 t/= EDS spectrum conforming to laboratory ■ . holes or opaque areas -identification criteria observed Chrysotile i AMPHIBOLES "I Amphibole: F’SIrgle Fiber ; Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous / C = Gluster(>3 Iniersectlonsy- 7 7 Anthophyllite Non-Asbestos Tremolite M = Matrix 1,. i i /; , / Non-Identified NSD = tlo Structures Detected " Actinolite ^3;;

CITY_2IMC10 0_011176 76 4

NYC-\/VTC_000202493