NYC-WTC_000202054

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume /liters): 1920; Lab Group #: 71 12- Oh ; Filter Type / Filter Area: MCE 385 mm2 Lab Sample # : 13 Grid Opening Size: f 0.01124:;-/7^0 Client Sample #: 13 Area Examined; 0,04496 mm^ GRID BOX: Magnification: 20,000/ GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/17/02 •

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 7 tEDS ' - (Nonadb No F- 3 C M >=05p Chrys ; Amphibole - Nonasb Ambig/ND No / Coord <5p :: Elements):; -

Struct = > 0.5p > 5:1 Aspect Ratio; Grid acceptance: Positive diffraction.pattern properties conforming to '"C undissolved filter, overlapoed orfolded Totals laboratory identification criteria observed <10% particuiate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C •M >5m EDS spectrum conforming to laboratory i holes oropaque areas ;" identification criteria observed Chrysotile AMPHIBOLES , i Amphibole y F = Single Fiber /. Amosite \ B = Bundle fibers <1 fiber diameter apart Crocidolite Ambiguous i C = Cluster (>3 Intersectionsi 3 Anthophyllite Non-Asbestos . Tremolite y J ; • .// M = Matrixi •/• I Non-Identified Actinolite ; ;/ NSD = No Structures Detected r’ / 3

CITY_21MC100_011276079 NYC-WTC_000202054