• There are no items in your cart

BS ISO 13794:1999

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Ambient air. Determination of asbestos fibres. Indirect-transfer transmission electron microscopy method
Available format(s)

Hardcopy , PDF

Superseded date

09-23-2023

Language(s)

English

Published date

11-15-1999

1 Scope
      1.1 Substance determined
      1.2 Type of sample
      1.3 Range
      1.4 Limit of detection
2 Terms and definitions
3 Abbreviated terms
4 Principle
5 Apparatus
      5.1 Air sampling
      5.2 Specimen preparation laboratory
      5.3 Equipment for analysis
      5.4 Consumable supplies
6 Reagents
7 Air sample collection
      7.1 Calculation of analytical sensitivity
      7.2 Sample collection procedure
8 Procedure for analysis
      8.1 General
      8.2 Cleaning of sample cassettes
      8.3 Preparation of analytical filters
      8.4 Preparation of TEM specimens from PC analytical filters
      8.5 Preparation of TEM specimens from cellulose ester
             analytical filters
      8.6 Criteria for acceptable TEM specimen grids
      8.7 Procedure for structure counting by TEM
      8.8 Blank and quality control determinations
      8.9 Calculation of results
9 Performance characteristics
      9.1 General
      9.2 Interferences and limitations of fibre identification
      9.3 Precision and accuracy
      9.4 Limit of detection
10 Test report
Annex A (normative) Determination of operating conditions for
                    plasma asher
Annex B (normative) Determination and standardization of operating
                    conditions for ultrasonic bath
Annex C (normative) Calibration procedures
Annex D (normative) Structure-counting criteria
Annex E (normative) Fibre identification procedure
Annex F (normative) Determination of concentrations of asbestos fibres
                    and bundles longer than 5um, and of PCM-equivalent
                    asbestos fibres
Annex G (normative) Calculation of results
Annex H (normative) Test procedure to determine suitability of cellulose
                    ester sample collection filters
Annex I (informative) Strategies for collection of air samples
Bibliograph

Defines a reference method using transmission electron microscopy (TEM) to determine the concentration of asbestos structures in ambient atmospheres. The method determines the type(s) of asbestos fibre present.

Committee
EH/2/3
DevelopmentNote
Supersedes 95/521516 DC (08/2004)
DocumentType
Standard
Pages
74
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 13794:1999 Identical

View more information
US$356.96
Excluding Tax where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.