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ASTM-D7391:2009 Edition

ASTM-D7391:2009 Edition

$44.96

D7391-09 Standard Test Method for Categorization and Quantification of Airborne Fungal Structures in an Inertial Impaction Sample by Optical Microscopy

Published By Publication Date Number of Pages
ASTM 2009 12
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1.1 This test method is a procedure that uses direct microscopy to analyze the deposit on an inertial impaction sample.

1.2 This test method describes procedures for categorizing and enumerating fungal structures by morphological type. Typically, categories may be as small as genus (for example, Cladosporium ) or as large as phylum (for example, basidiospores).

1.3 This method contains two procedures for enumerating fungal structures: one for slit impaction samples and one for circular impaction samples. This test method is applicable for impaction air samples, for which a known volume of air (at a rate as recommended by the manufacturer) has been drawn, and is also applicable for blank impaction samples.

1.4 Enumeration results are presented in fungal structures/sample (fs/sample) and fungal structures/m 3 (fs/m 3 ).

1.5 The range of enumeration results that can be determined with this method depends on the size of the spores on the sample trace, the amount of particulate matter on the sample trace, the percentage of the sample trace counted, and the volume of air sampled.

1.6 This method addresses only the analysis of samples. The sampling process and interpretation of results is outside the scope of this method.

1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Interferences
3 Apparatus
Reagents and Materials
Hazards
Preparation of Apparatus
Calibration and Standardization
4 Procedure
TABLE 1
7 FIG. 1
FIG. 2
8 FIG. 3
FIG. 4
9 Quality Assurance/Quality Control
Records
FIG. 5
10 Report
Precision and Bias
11 Keywords
A1. REFERENCES FOR FUNGAL SPORE IDENTIFICATION
A1.1
X1.
X1.1 Diatom Resolution Check Slide
X2. DIRECTIONS FOR PREPARATION OF COMMON STAINS
X2.1 lacto-cotton blue stain
X2.2 lacto-phenol-cotton blue stain
12 X2.3 lacto-fuchsin stain
X2.4 Levetin 89 ā€“ L-PVA permanent slide mount (ref.: Levetin, Estelle, Annals of Allergy, vol. 62, pp. 306-310 (1989)) 1.

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