Standard Historical Last Updated: Jan 15, 2021 Track Document
ASTM D3824-12

Standard Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by the Chemiluminescent Method

Standard Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by the Chemiluminescent Method D3824-12 ASTM|D3824-12|en-US Standard Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by the Chemiluminescent Method Standard new BOS Vol. 11.07 Committee D22
$ 83.00 In stock

Significance and Use

Most oxides of nitrogen are formed during high-temperature combustion. The Environmental Protection Agency (EPA) has set primary and secondary air quality standards for NO2 that are designed to protect the public health and the public welfare (40 CFR, Part 50).

Oxides of nitrogen are generated by many industrial processes that can result in employee exposures. These are regulated by the Occupational Safety and Health Administration (OSHA) which has promulgated exposure limits for the industrial working environment (29 CFR, Part 1910).

These methods have been found satisfactory for measuring oxides of nitrogen in the ambient and workplace atmosphere over the ranges shown in 1.1.

Scope

1.1 These test methods cover procedures for the continuous determination of total nitrogen dioxide (NO2) and nitric oxide (NO) as NOx, or nitric oxide (NO) alone or nitrogen dioxide (NO2) alone, in the ranges shown in the following table:

Range of Concentration
GasAmbient AtmosphereWorkplace Atmosphere
μg/m3 (ppm) (Note 1)mg/m3 (ppm) (Note 1)
NO10 to 600 (0.01 to 0.5)0.6 to 30 (0.5 to 25)
(NO + NO2) = NOx20 to 1000 (0.01 to 0.05)1 to 50 (0.5 to 25)
NO220 to 1000 (0.01 to 0.5)1 to 50 (0.5 to 25)

Note 1—Approximate range: 25°C and 101.3 kPa (1 atm).

1.2 The test methods are based on the chemiluminescent reaction between nitric oxide and ozone.

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

1.4 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. For specific precautionary statements, see Section 9.

Price:
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Book of Standards Volume: 11.07
Developed by Subcommittee: D22.03
Pages: 12
DOI: 10.1520/D3824-12
ICS Code: 13.040.30