NYC-WTC_000218064

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6852 Filter Type Z Filter Area: MCE 3S5 mm- Lab Sample #: Grid Opening Size: D,o; 124

Client Sample #: 3 Area Examined: 0.04406 ITCH'

GRID BOX: ,£222- Maonification: 20.ODO GRIDID: Accelerating Voltage: 100 KeY # Grid Openings: 4 Analysis Date: 2'28/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure \ or v EDS ^^onadb No F B C M >=Q5u Chrys Amphibole i Nonasb Airtsig/ND No Coord <5p Clemen's) ----------

X 03 ------------ - '23 __

Struct = > 0.5p > 5:1 Aspect Ratio Gnd acceptance: <= Positive diffraction pattern properties conforming to <50% undissolved filter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F i B I C i M ! >51 EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Noit-.Asbestos T remolite M = Matrix Actinolite Non-fdenufied I i NSD = No Structures Defected

CITY_2IMCl0 0_0 0 0 465826 NYC-WTC_000218064