TEM Asbestos Air Analysis Sheet, NYC BOE, Mar 2, 2002

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE V olume (liters): 1816 Lab Croup OSS 5 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: Grid Opening Size: 0 01124 Client Sample #: 15 Area Examined: 004496 mm-

GRID BOX: Maonification; 20.000 C^RipiD; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3 2/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure \ or V I zDS An)Hg/ND^ j No F B C M -V,. r 3^ Chrys Amphibole Nonaso No Coord I <5p I I Elements) -------- (

N o rm rC- C

1----- 1-

Struct = > 0.5p >5:1 Aspect Ratio H WZd Grid acceptance:

M = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded rotals <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% 1 F B 5 C Mf >5u 'J = EDS spectrum conforming to laboratory holes or opaque areas ' - ------ Chrysotile ,' — identification criteria observed AMPHIBOLES Amphibole ’ F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite j Non-Asbestos ■ T remolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003044208

NYC-WTC_000196927