NYC-WTC_000207928

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group 9205 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 04 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIP ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

Structure Structure Type Length ID of Structure sj or :DS (Nonadb No F B C M ■=5p Chrys Amphiboie Nonasb Amoig/ND No Coord Elements) <5p

7 y -JZ__ 2^2 __ Q____

Photo No (from 1 in □ asbestos containing samples) Qridacc®pBn^ Struct = > 0.5p > 5:1 Aspect Ratio <50»so“ed filter, overiapped or folded Totals •j- Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 jnfoided or overlappea grid squares <5% holes ar opaque areas F B C >7U i '/= EDS spectrum conforming to laboratory I Chrysotile loentification cnteria observed AMPHIBOLES Amphibole ? = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite C = Cluster (>3 Intersections) Tremolite Non-Asbestos M = Matrix Actinolite Non-ldentified NSD = No Structures Deleciec

CITY_21MC100_003017260

NYC-WTC_000207928