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Toxicological information

Acute Toxicity: inhalation

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Administrative data

Endpoint:
acute toxicity: inhalation
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Study period:
14. Jan 1966 - 24. Jan 1966
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented report which meets basic scientific principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1966
Report Date:
1966

Materials and methods

Principles of method if other than guideline:
Method: BASF-Test: Test was performed in principle as described in OECD Guideline 403.
The test demonstrates the toxicity of an atmosphere saturated with vapours of the volatile components of a test substance at the temperature chosen for vapour generation (20 °C). 3 rats per sex were exposed sequentially to the vapours, generated by bubbling 200 l/h air through a substance column of about 5 cm above a fritted glassdisc in a glass cylinder for 8 h. The documentation of clinical signs was performed over a period of 7 days.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Test material form:
other: liquid
Details on test material:
- Name of test material (as cited in study report): Triaethylentetramin; Haerter HY 951

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female
Details on test animals and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 184 g (mean)

Administration / exposure

Route of administration:
inhalation: vapour
Type of inhalation exposure:
not specified
Vehicle:
other: unchanged (no vehicle)
Analytical verification of test atmosphere concentrations:
no
Duration of exposure:
8 h
Concentrations:
In the study report and the raw data no substance loss but an increase in substance weight was recorded.
No. of animals per sex per dose:
6
Control animals:
not specified
Details on study design:
- Duration of observation period following administration: 7 days
- Frequency of observations: daily
- Frequency of weighing: days 0, 7
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
other: Inhalation Risk Test
Effect level:
other: Inhalation Risk Test
Exp. duration:
8 h
Mortality:
No mortality occured.
Clinical signs:
Initially escape attempts.
Body weight:
The animals gained weight.
Gross pathology:
No abnormalities observed.

Any other information on results incl. tables

In the study report and the raw data no substance loss but an increase in substance weight was recorded. This is an indication that the test substance is hygroscopic and only a marginal fraction of the test substance might be volatile. From a toxicologists point of view it is doubtful if the animals were exposed to the test substance by inhalation and which concentration the generated vapour was of.

Applicant's summary and conclusion