TexFRon AG

Eye irritation

Administrative data

Endpoint:

eye irritation: in vivo

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 405 (Acute Eye Irritation / Corrosion)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 870.2400 (Acute Eye Irritation)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Details on test material:

Aluminum Ammonium Superphosphate (Batch No. 38771-55-3), a white powder stored at room temp in a dark, dry, closed container.

Test animals / tissue source

Species:

rabbit

Strain:

New Zealand White

Details on test animals or tissues and environmental conditions:

Three New Zealand White rabbits were supplied by Harlan Laboratories UK Ltd, Hillcrest, Belton, Loughborough, UK. At the start of the study the animals weighed 2.64 to 2.89 kg and were twelve to twenty weeks old. After an acclimatisation period of at least five days each animal was given a number unique within the study which was written with a black indelible marker-pen on the inner surface of the ear and on the cage label.
The animals were individually housed in suspended cages. Free access to mains drinking water and food (2030 Teklad Global Rabbit diet supplied by Harlan Teklad, Blackthorn, Bicester, Oxon, UK) was allowed throughout the study. The diet and drinking water were considered not to contain any contaminant of a level that might have affected the purpose or integrity of the study.
The temperature and relative humidity were set to achieve limits of 17 to 23 °C and 30 to 70% respectively. Any occasional deviations from these targets were considered not to have affected the purpose or integrity of the study. The rate of air exchange was at least fifteen changes per hour and the lighting was controlled by a time switch to give twelve hours continuous light (06:00 to 18:00) and twelve hours darkness.
The animals were provided with environmental enrichment items which were considered not to contain any contaminant of a level that might have affected the purpose or integrity of the study.

Test system

Vehicle:

water

Controls:

other: The left eye remained untreated and was used for control purposes

Amount / concentration applied:

A volume of 0.1 ml of the test material, which was found to weigh approximately 96 mg (as measured by gently compacting the required volume into an adapted syringe) was placed into the conjunctival sac of the right eye, formed by gently pulling the lower lid away from the eyeball.

Observation period (in vivo):

Assessment of ocular damage/irritation was made approximately 1 hour and 24, 48 and 72 hours following treatment.

Number of animals or in vitro replicates:

3

Details on study design:

SCORING SYSTEM:
- from Draize J H (1977) "Dermal and Eye Toxicity Tests" In: Principles and Procedures for Evaluating the Toxicity of Household Substances, National Academy of Sciences, Washington DC p.48 to 49
TOOL USED TO ASSESS SCORE:
- light source from a standard ophthalmoscope

Results and discussion

In vivo

Results

Irritation parameter:

other: maximum group mean score

Basis:

mean

Time point:

other: 1 hour

Score:

10

Applicant's summary and conclusion

Interpretation of results:

other: minimal irritant

Conclusions:

The test material produced a maximum group mean score of 10.0 and was classified as a minimal irritant (Class 3 on a 1 to 8 scale) to the rabbit eye according to a modified Kay and Calandra classification system.
The test material did not meet the criteria for classification as irritant according to the EU labelling regulations Commission Directive 2001/59/EC or the Globally Harmonised classification System.