ASTM-D6877 2008

$40.63

D6877-03(2008) Standard Test Method for Monitoring Diesel Particulate Exhaust in the Workplace

Published By	Publication Date	Number of Pages
ASTM	2008	8

Guaranteed Safe Checkout

Categories: 13.040.50 - Transport exhaust emissions, ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

ASTM D6877-03-Reapproved2008

Historical Standard: Standard Test Method for Monitoring Diesel Particulate Exhaust in the Workplace

ASTM D6877

Scope

1.1 This test method covers determination of organic and elemental carbon in the particulate fraction of diesel engine exhaust, hereafter referred to as diesel particulate matter (DPM). Samples of workplace atmospheres are collected on quartz-fiber filters. The method also is suitable for other types of carbonaceous aerosols, but it is not appropriate for sampling volatile or semi-volatile components. These components require sorbents for efficient collection.

Note 1—Sample collection and handling procedures for environmental samples differ from occupational samples. This standard addresses occupational monitoring of DPM in workplaces where diesel-powered equipment is used.

1.2 The method is based on a thermal-optical technique (1, 2) . Speciation of organic and elemental carbon is achieved through temperature and atmosphere control, and an optical feature that corrects for sample charring.

1.3 A portion of a 37-mm, quartz-fiber filter sample is analyzed. Results for the portion are used to calculate the total mass of organic and elemental carbon on the filter. The portion must be representative of the entire filter deposit. If the deposit is uneven, two or more representative portions should be analyzed for an average. Open-faced cassettes give even deposits but are often not practical. Closed-face cassettes give equivalent results if other dusts are absent. Other samplers may be required, depending on the sampling environment (2-5).

1.4 The calculated limit of detection (LOD) depends on the level of contamination of the media blanks (5). A LOD of approximately 0.2 µg carbon per cm² of filter was estimated when analyzing a sucrose standard solution applied to filter portions cleaned immediately before analysis. LODs based on media blanks stored after cleaning are usually higher. LODs based on a set of media blanks from a commercial laboratory were OC = 1.2 µg/cm², EC = 0.4 µg/cm², and TC = 1.3 µg/cm², where OC, EC, and TC refer to organic, elemental, and total carbon, respectively.

1.5 OC-EC methods are operational, which means the analytical procedure defines the analyte. The test method offers greater selectivity and precision than thermal techniques that do not correct for charring of organic components. The analysis method is simple and relatively quick (about 15 min). The analysis and data reduction are automated, and the instrument is programmable (different methods can be saved as methods for other applications).

1.6 A method (5040) for DPM based on thermal-optical analysis has been published by the National Institute for Occupational Safety and Health (NIOSH). Method updates (3, 4) have been published since its initial (1996) publication in the NIOSH Manual of Analytical Methods (NMAM). Both OC and EC are determined by NMAM 5040. An EC exposure marker was recommended because EC is a more selective measure of exposure. A comprehensive review of the method and rationale for selection of an EC marker are provided in a recent Chapter of NMAM (5).

1.7 The thermal-optical instrument required for the analysis is manufactured by a private laboratory. As with most instrumentation, design improvements continue to be made. Different laboratories may be using different instrument models.

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. Specific precautionary statements are given in 7.1.5, 8.3, and 12.12.2.

Keywords

air pollution; carbonaceous aerosols; carbon analysis; diesel exhaust; diesel particulate matter; diesel soot; elemental carbon; PM_2.5; sampling and analysis; ultra-fine particles; Monitoring–petroleum testing; Organic carbon (OC); Sampling petroleum products; Thermal-optical analysis; Total carbon (TC); Ultra-fine particle analysis; Workplace air/atmospheres; Air pollution/toxicity assessment; Carbonaceous aerosols; Diesel particulate matter (DPM); Elemental analysis

ICS Code

ICS Number Code 13.040.50 (Transport exaust emissions)

DOI: 10.1520/D6877-03R08

PDF Catalog

PDF Pages	PDF Title
1	Scope
2	Referenced Documents Terminology Summary of Test Method FIG. 1
3	Significance and Use FIG. 2
4	Interferences Apparatus Reagents and Materials
5	Sampling Calibration and Standardization Quality Control Procedure
6	Calculation Precision and Bias
7	Keywords REFERENCES

Additional information

Standard Title	D6877-03(2008) Standard Test Method for Monitoring Diesel Particulate Exhaust in the Workplace
Published Code	ASTM
Publication Date	2008
Pages Count	8
ICS Codes	13.040.50 - Transport exhaust emissions