NYC-WTC_000228549

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group 7448 Filter Type / Filter Area: MCE 3S5 ir.m- Lab Sarnpte #: 1 Grid Opening Size: 0.0 i 124 Client Sample #: 03 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/I7dJ2 Analysis Performed By: .1^/^

ROMAN PEYSAKHOV

GO. Structure Structure Type Length lO of Structure N or v i No >-05 p iNoradb F B C M >=5|j Chrys Amphibole Nonasb i Amsig/.NC No Coord <5m ;:9Tienis;

' ■ I?” 32^ _c:

Struct = >0.5p >5:l Aspect Ratio Gnd acceptance: 4- Positive d ffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals latxjratory identification criteria oOserved <10% particulate coverage >50% coverage ale least 20 unfolded or overlapped grid squares <5% F B j C i M EDS spectrum conforming to laboratory doles or opaque areas —- 'dentilioaiion criteria observed Chrysotile AMPHIBOLES Amphibole P = Single Piter Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD - No Structures Detected

CITY_21MC100_002900979

NYC-WTC_000228549