NYC-WTC_000208267

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: N'YC BOE Volume (liters): 1920 Lab Group #: 8828 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 14 Grid Opening Size: 0.01124

Client Sample #: 14 Area Examined: 0.04496 mm-

GRID BOX: Maonification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/10/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structui'3 Type Length ID of Structure N or 4 EDS (Nonadb No F B C M >=5(j Chrys Amphibole Nonasb ■ Ambig/ND No Coord <5p Elements) - '■

— <%'-

Strudt = 1' O.Pu '51 Aspect Ratio Gric acceptance

\= Positive diffraction pattern properties conforming to <50% jndibsolved filter ovetiapped or folded Totals <10% particulate coverage >50% coverage ate laboratop' identification criteria observed least 20 unfolded or ovenappeo grid squares <5% 1 i F i B C M I > \= EDS spectrum conforming to laboratory holes or opaque areas identification criteria obsei^ed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambigiiotis C = Cluster ;>3 Intersections) Anthophyllite Non-Asbestos j Tremolite M = Matrix Non-Identified i Actinolite NSD = No Structures Detected

CITY_21MC100_003021275

NYC-WTC_000208267