Asbestos Project Notification and Inspection Report, Dec 2002

NYC 9/11 Public Portal Document

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(|j Designation: D 6755 - 95 AMERICAN SOCISTY TOH TBS-nNO ANO MATtniALS me lUev st PMBaeiBNa. P» 1»IO1 Reprinted Iwm IM Annuri Boe* el ASTM Siana«dA Oepyi'pN ASIN M net Miefl In Bw currvre eenUrined Inden. wM pppear »i ttw Mid editiBn

Standard Test Method for Microvaouum Sampling and Indirect Analysis of Dust by Transmission Electron Microscopy for Asbestos Structure Number Concentrations'* Thfa rUndvnJ k Issued under the Used designation 0 575S; the number Immedluely following the designation indicates the year of original adoption or. tn |h« case of revision, the year oflart revision. A number in parentheses indicates the year of last napproval. A superscript epsilon r>) indicates an editorial change since the last revision or reaporoval.

1. Scope responsibility of the user of this standard to establish appro­ 1.1 This test method covers a procedure to (a) identify priate safety and health practices and determine the applica­ asbestos io dust and (h) provide an estimate of the concen­ bility ofregulatory limitations prior to use. tration of asbestos in the sampled dust reported as the number of asbestos structures per unit area of sampled 2. Rererenced Documents surface. 2.1 ASTM Standards: l.I.l If an estimate of the asbestos mass is to be deter­ D1193 Specification for Reagent WateP mined. the user is referred to Test Method D 5756. D1739 Test Method for the Collection and Measurement 1,2 This test method describes the equipment and proce­ of Dustfall (Settleable Particulate Matter)’ dures necessary for sampling, by a microvacuum technique, D 3195 Practice for Rotameter Calibration’ non-aitbome dust for levels of asbestos structures. The D367O Guide for Determination of Precision and Bias of non-airbome sample is collected inside a standard filter Methods of Committee D-22’ membrane cassette from the sampling of a surface area for D5756 Test Method for Microvacuum Sampling and dust which may contain asbestos. Indirect Analysis of Dust by Transmission Elytron 1.2.1 This procedure uses a microvacuuming sampling Microscopy for Asbestos Mass Concentration’ I technique. The collection efficiency of this technique is I unknown and will vary among substrates. Properties influ- 3. Terminology 1 encing collection efficiency include surface texture, adhesivc- 3.1 Definitions: ness, dectrostatic properties and other factors. 3.1.1 asbesliform—e. special type of fibrous habit in which 1.3'Asbestos identified by transmission electron micros­ the fibers are separable into thinner fibers and ultimately copy (TEM) is based on morphology, selected area electron into fibrils. This habit accounts for greater flexibility and diffraction (SAED), and energy dispersive X-ray analysis higher tensile strength than other habits of the same mineral. (EDXA). Some information about structure size is also For more information on asbestiform mineralogy, see Refs determined. (l),*(2)andC3). 1.4 This tat method is generally applicable for an esti­ 3.1.2 asbesios-^a collective tenn that describes a group of mate of the concentration ofasbestos structura starting from naturally occurring, inorganic, highly fibrous, silicate domi­ approximately 1000 asbestos structures per square centi­ nated minerals, which are e^y separated into long, thin. metre. flexible fibers when crushed or processed. 1.4.1 The procedure outlined in this test method employs ay indirect sample preparation technique. It is intended to Discussion—Included in the definition are the aAeadfonn varieties disperse aggregated asbestos into fund^ental fibrils, fiber of. serpentine (chrysotile); riebeckite (croddoUte); grunerite (grunerite asbestos); anthophylHte (aothophyUlte asbestos); tremoHte (tremolite bundles, clusters, or matrices that can be more accurately asbesua); and actinolite (actinolite asbestos). The amptubole mineral quantified by transmission electron microscopy. However, as compositions ate defined according to nomenclature of the Interaa- with all indirect sample preparation techniques, the asbestos tioDol Mineralogical Association (3), observed for quantification may not represent the physical Asbestos Cbendcal Abstract Service No.’ form of the asbestos as sampled. More specifically, the Chtytolile 12aoi.2M procedure described neither creates nor destroys asbestos, CrocUoOte I200I-3M Grunerite Aabailoi 12I72-7>S but it may alter the physical form of the mineral fibers. AnthophyHiw Atbestoo 77534.47-5 1.5 The values stated in SI units are to be regarded as the TreBoISte Asbtatos 77SJ«W standard- The values given in parentheses are for informa- Aeilaoliie Asbestos 773J4.A4-4 tion only. 3,1.3 fibril—a. angle fiber that cannot be separated into 1.6 This standard does not purport to address all of the safely concerns, If any, associated with its use. It is the *Anmtd Book t/ASTM SanJanb, Vol 114)1. > AMOutl Book ^ASrU StMdardx. Vol I I.0X ‘Thu leal mctbod fa under the jutudieuoB of ASTM Committee 1X22 on * The boMraos itumbetl !a puatlhae* refer to Oie Ba of refatnoes at the end Simplific and Analyst of Atmotphera and it the direct rapondWHiy of of this tea BtcOiad. Subconimiltee 022.07 on Samptinc nod Anatysfa of Ashmtot. 'The non-Bifaatironn variaUane of the nuocrab indkmed in J.I J ha»e Current edition approved AuiuU 15. 19»5. Fubrished October 1995, dilTerenl Chctnital Abatact Service (CaS) numbcn.

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