BS 5243:1975

Superseded

View Superseded by

General principles for sampling airborne radioactive materials

Available format(s)

Hardcopy , PDF

Superseded date

31-12-2010

Language(s)

English

Published date

30-09-1975

Publisher

British Standards Institution

Cooperating organizations
Foreword
Principles
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Principles for effective sampling
5. Methods of sampling
6. Validation of sampling effectiveness
Appendices
A. Guides for sampling from ducts and stacks
B. Particle deposition in sampling lines
C. Errors due to anisokinetic sampling
D. Bibliographical references
Tables
1. Collection efficiency and flow resistance of
    selected air sampling filter media
2. Minimum number of sampling points
3. Number of sample withdrawal points
4. Length of horizontal tube for 100% and 50%
    deposition due to gravity
5. Length of tube within which 20%, 50% and 75% of
    particles will deposit
6. Fraction of entering particles which deposit in
    a vertical sampling line
7. Fraction of entering particles deposited in a
    1.01 cm internal diameter 90 deg bend in aluminium
    tubing
8. Ratio of observed to actual concentration of
    particles when sampled at various fractions and
    multiples of isokinetic flow
Figures
1. Velocity ratio V as a function of Reynolds number
    Re for smooth pipes
2. Single circular probe sampler
3. Rectangular slot probe sampler
4. Single probe retrievable filter

For obtaining representative samples. Prescribes acceptable methods and materials for gas and particle sampling. Excludes radiochemical measurement and evaluation.

Committee	NCE/2
DevelopmentNote	Supersedes 72/44470 DC. (07/2005)
DocumentType	Standard
Pages	36
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS ISO 2889:2010

BS 3048:1958	Code for the continuous sampling and automatic analysis of flue gases: indicators and recorders
BS 2069:1954	Specification for gas sampling tubes
BS 2577:1955	Methylene blue particulate test for respirator canisters
BS 1756-1:1971	Methods for the sampling and analysis of flue gases Methods of sampling
BS 4400:1969	Method for sodium chloride particulate test for respirator filters
BS 1042(1965) : LATEST
BS 893:1978	Method for the measurement of the concentration of particulate material in ducts carrying gases