Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 14 june 1993 to 13 October 1994
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994
Report Date:
1994

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: ASTM 70-77 "pH acqueous solutions with the glass electrode"
Deviations:
not specified
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Atrazine technical grade
Purity 97.5%
Batch n. 2653
Storage conditions: dark, 4°C
Appaerance: white powder
Expiry: Stable until at least January 1995

Results and discussion

pH value
pH value:
6.47
Temp.:
18.5 °C
Concentration:
4 other: w/v
Remarks on result:
other: overal mean of 10 accettable results (see the box "remarks on results". The associated standard deviation was 0.04 units.

Any other information on results incl. tables

Ten tests have been performed. The accettable pH readings of the test samples ranged between 6.41 and 6.52. Only two tests needed to be subsampled three times to obtain consistent results.

Applicant's summary and conclusion