BS 4172-2:1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hand-held pressurized aerosol dispensers against houseflies Method for determination of insecticidal performance
Hardcopy , PDF
18-01-2019
English
15-02-1999
Committees responsible
Foreword
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Materials and apparatus
6 Sampling and treatment of the candidate
7 Procedure
8 Calculation and expression of results
9 Test report
Annex A (informative) Recommended method for breeding
houseflies
Annex B (normative) Method for preparation of the reference
dispensers
Annex C (normative) Method for determination of S-bioallethrin
and bioresmethrin content of the reference dispensers
Annex D (normative) Method for determination of droplet size
of the aerosol from the reference dispenser
Annex E (informative) Example of a statistical treatment of
results
Bibliography
Figure E.1 Candidate passes the assessment
Figure E.2 Candidate fails the assessment
Figure E.3 Indeterminate outcome demonstrating need for an
extended study
Tables
1 Critical values for the 95% two-tailed F-distribution
2 Values for the 95% two-tailed t-distribution
A.1 Fresh larval medium
B.1 Composition of filling solution
B.2 Composition of aerosol formulation
E.1 Example of KT50 results
E.2 Mean log10 values and standard errors
E.3 Results in minutes
E.4 Example of 24 h knockdown results
E.5 Mean arcsin results and standard errors
E.6 Results in percentage
E.7 Examples of KT50
E.8 Examples of 24 h knockdown results just sufficient to
achieve conformity
Important note : All end users must be registered with an Account prior to user licenses being assigned.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.