TEM asbestos air sample data sheet, Sample 8

NYC 9/11 Public Portal Document

TEMAsbestos fair) Count Sheet Client N inie NYC BOE Volume (liters) 1944 Lab Group # 87p9 Filter Type / Filter Area MCE 385 mm Lab Sample # 8 Grid Opening Size 0 01124 Client Sample # 8 Area Examined 0 04496 mm^ GRID BOX Magnification 20 000 GRIDID, Accelerating Voltage 100 KeV # Grid Openings Analysis Date 8/23/02

Analysis Performed By ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or 'Z EDS No (Nonadb F B C M 05p :>-5p Chrys Amphibole Nonasb Ambig/ND No Coord 5m Elemenis)

~Tf -U__

Struct = > 0 Sp >5 I Aspect Ratio Gnd acceptance V Positive diffraction pattern properties conforming to 50 / undissolved filter overlapped or folded Totals laboratory identifcaton critena observed 10 / particulate coverage 50 / coverage ate least 20 unfolded or overlapped gnd squares 5 / F B C M 5U 7 EDS spectrum conforming to laboratory holes or opaque areas dentification catena observed Chrysotile AMPHIBOLES Amphibole F Single Fiber Amosite B Bundle ( 3 fibers 1 fiber diameter apart Crocidolite Ambiguous C Cluster ( 3 Intersections) Anthophyllite Non Asbestos Tremolite M Matnx Non Identified Actinolite NSD No Structures Detected

CONFIDENTIAL, CITY_21MC100_003431031 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175434