Standard recommended practices for sampling atmospheres for analysis of gases and vapors

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Annu. Book ASTM Stand.; (United States)

OSTI ID:7087026

These recommended practices cover the sampling of atmospheres for analysis of gases and vapors. Two types of sampling methods are covered: sampling atmospheres without concentration of gases and vapors and sampling atmospheres with concentration of gases and vapors. Wide variations in atmospheric content of extraneous gases and vapors preclude the possibility of specifying standard methods of sampling that are applicable in all cases. Definite principles have, however, been established as a basis for the formulation of procedures for sampling that are applicable in general and are probably applicable in most specific cases. Where modifications of these procedures are necessary, they may be made by the exercise of trained judgment for each case. Changes that may be necessary in these procedures under specific circumstances may be made in any particular case by mutual agreement of the parties concerned. The following general requirements are applicable to all sampling methods: the samples must represent the conditions existing at the point taken. The samples must be of sufficient volume and must be taken frequently enough to permit an accuracy of testing requisite for the desired objective, as affected by the methods of analysis to be employed. In some cases, however, the concentration of gases or vapors to be analyzed will be so low that it will be impracticable to take a sufficiently large atmospheric sample, In such cases, the gases or vapors to be analyzed may be concentrated in the atmosphere prior to analysis of the sample. The samples must be collected, packed, shipped, and manipulated prior to analysis in a manner that safeguards against change in the particular constituents or properties to be examined.

• OSTI ID: 7087026
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 26; ISSN ASTSA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
AIR POLLUTION
CHEMICAL ANALYSIS
FLUIDS
GASES
POLLUTION
SAMPLING
STANDARDS
VAPORS