NYC-WTC_000201209

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet Client Name: =- NYC BOE Lab Group #: 7300 Lab Sample #: 6 Volume (liters): Filter Type / Filter Area: Grid Opening Size: 1840 MCE 385 mm? 0.01124 Client Sample #: 06 Area Examined: 0.04496 mmm? GRID BOX: PEE Magnification: 29 904 GRID ID: Sus eT Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/2/02 Analysis Performed By: AE MARK PEYSAKHOV GO. Structure Structure Type Length iDof Structure Nor V EDS No FIBICIM) 22054 >=5U Chrys | Amohibole [~ Nonaso | Ambig/ND (Noradb No. Coord . | <5u Elements) -~.?¢ * we CK Sz AZ LXE 2 ee) ae Ter @ ce 6 oer? oe _ r Struct = > 0.5u > 5:1 Aspect Ratio Grid acceptance: } -/= Positive diffraction pattern properties conforming to <90% undissolved filter, overlapped ar folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate : . least 29 unfolded or overlapped grid squares <3% F B] CLM i >5u = EDS spectrum conforming ic laboratory holes or opaque areas . identification criteria observed ee Chrysotile j AMPHIBOLES | Amphibole F = Single Fiber : Amosite ! P B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyilite Non- Asbestos M = Mate Tremolite : — v= Matrix Actinolite | Non-Identified NSD = No Structures Detected : Se rend oo ebm CITY_21MC100_011275471 NYC-WTC_000201214