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Diss Factsheets

Administrative data

Description of key information

Skin Irritation: Not Irritant
Eye Irritation: Not Irritant

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records
Reference
Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 21, 1986
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
not specified
GLP compliance:
no
Remarks:
Pre GLP.
Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Interfauna UK ltd.
- Weight at study initiation: 3.4 - 3.8 kg
- Housing: in individual cages (Drahtkäfige type III-Hoch)
- Diet (e.g. ad libitum): standard diet "Sniff K4" (Versuchstierdiäten GmbH) ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 14 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 2 °C
- Humidity (%): 45 - 64 %
- Air changes : 10 canges per day
- Photoperiod (hrs dark / hrs light): 12/12
Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
no
Amount / concentration applied:
TEST MATERIAL
500 mg of test substance have been dissolved in water and applied on rabbits
Duration of treatment / exposure:
4 hours
Observation period:
7 days
Number of animals:
3 male
Details on study design:
TEST SITE
- Area of exposure: 6 cm2
- Type of wrap if used: Beiersdorf No. 2342

REMOVAL OF TEST SUBSTANCE
- Washing (if done): yes
- Time after start of exposure: 4 h
Irritation parameter:
erythema score
Basis:
animal: L76
Time point:
other: 7 d
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
animal: L76
Time point:
other: 7 d
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
erythema score
Basis:
animal: L77
Time point:
other: 7 d
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
animal: L77
Time point:
other: 7 d
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
erythema score
Basis:
animal: K83
Time point:
other: 7 d
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
animal: K83
Time point:
other: 7 d
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible

4h exposition data:

animal n. Sex/weight (kg) DRAIZE -Grade after: final values
1h 24h 48h 72h 7d
E O E O E O E O E O E O
L76 M/3.8 0 0 0 0 0 0 0 0 0 0 0.0 0.0
L77 M/3.4 0 0 0 0 0 0 0 0 0 0 0.0 0.0
K83 M/3.4 0 0 0 0 0 0 0 0 0 0 0.0 0.0
E = Erythema
O = Oedema
Interpretation of results:
other: CLP criteria not met
Conclusions:
Not irritant
Executive summary:

The substance to be registered has been tested according to OECD 404. The test substance was applied on the shaved skin of three rabbits.

No erythema and no edema were observed during the test.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Eye irritation

Link to relevant study records
Reference
Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 21, 1986
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
not specified
GLP compliance:
no
Remarks:
Pre GLP.
Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Interfauna UK ltd.
- Weight at study initiation: 3.4 - 3.8 kg
- Housing: in individual cages (Drahtkäfige type III-Hoch)
- Diet (e.g. ad libitum): standard diet "Sniff K4" (Versuchstierdiäten GmbH) ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 14 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 2 °C
- Humidity (%): 45 - 64 %
- Air changes : 10 canges per day
- Photoperiod (hrs dark / hrs light): 12/12
Vehicle:
not specified
Controls:
other: the not treated eye for each animal was used as control
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 100 µl
Duration of treatment / exposure:
24 hours
Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): washing with physiological saline solution
- Time after start of exposure: 24h

SCORING SYSTEM: DRAIZE system

TOOL USED TO ASSESS SCORE: fluorescein and Optical devices
Irritation parameter:
cornea opacity score
Remarks:
opacity
Basis:
mean
Time point:
other: 72h
Score:
ca. 0
Max. score:
0
Reversibility:
other: No eye reaction
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 72h
Score:
ca. 0
Max. score:
0
Reversibility:
other: No eye reaction
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
mean
Time point:
other: 72 h
Score:
ca. 1
Max. score:
3
Reversibility:
fully reversible
Remarks on result:
other: 24 hours after the application of the substance, the redness reaction was not evaluable due to the blue coloration of the eye. In order to give an evaluation the score at 24 h was selected as the higher one of the Draize scale.
Irritation parameter:
conjunctivae score
Remarks:
oedema
Basis:
mean
Time point:
other: 72h
Score:
ca. 0
Max. score:
0
Reversibility:
other: No eye reaction
Other effects:
24 hours after the application of the test substance, the redness of conjunctivae was not evaluable for the blue coloration of the eye.

animal n. Sex/weight (kg) organs symptoms DRAIZE -Grade after: final values
1h 24h 48h 72h 7d
M59 ♀/3.2 cornea Opacity 0 0 0 0 0 0.0
Surface 0 0 0 0 0
iris 0 0 0 0 0 0.0
conjunctivae Redness X X 0 0 0 X
Swelling 1 0 0 0 0 0.0
Lacrimation 1 0 0 0 0
M61 ♀/3.4 cornea Opacity 0 0 0 0 0 0.0
Surface 0 0 0 0 0
iris 0 0 0 0 0 0.0
conjunctivae Redness X X 0 0 0 X
Swelling 1 0 0 0 0 0.0
Lacrimation 2 0 0 0 0
K63 ♂/4.7 cornea Opacity 0 0 0 0 0 0.0
Surface 0 0 0 0 0
iris 0 0 0 0 0 0.0
conjunctivae Redness X X 0 0 0 X
Swelling 0 0 0 0 0 0.0
Lacrimation 1 0 0 0 0
X = evaluation not feasible for blue coloration
Interpretation of results:
other: CLP criteria not met
Conclusions:
The test substance is not irritant for the eye.
Executive summary:

The substance to be registered wa tested according to OECD 405, during the test 3 rabbits were used (2 female and 1 male). 24 hours after the application of the test substance, the redness reaction was not evaluable due to the blue coloration of the eye. In order to give an evaluation the score at 24 h was selected as the higher one of the Draize scale. No other effects were observed during the test.

According to the CLP Regulation the substance is not irritant for eye.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

The assessment for skin and eye irritation was conducted in several test on rabbits. All the existing studies show skin and eyes reaction associated with primary irritation score consistent with each other.

The key studies have been conducted according to GLP and to the internationally accepted guidelines.


Justification for classification or non-classification

Skin Irritation

According to the CLP Regulation (EC n. 1272/2008), skin corrosion means the production of irreversible damage to the skin, and skin irritation means the production of reversible damage to the skin following the application of a test substance for up to 4 hours.

A substance has to be classified as Category 1 (Corrosive) if there is the production of irreversible damage to the skin in more than 1 of three animals.

A substance has to be classified as Category 2 (Irritant) if shows:

(1) Mean value of ≥ 2,3 - ≤ 4,0 for erythema/ eschar or for oedema in at least 2 of 3 tested animals from gradings at 24, 48 and 72 hours after patch removal or, if reactions are delayed, from grades on 3 consecutive days after the onset of skin reactions; or

(2) Inflammation that persists to the end of the observation period normally 14 days in at least 2 animals, particularly taking into account alopecia (limited area), hyperkeratosis, hyperplasia, and scaling; or

(3) In some cases where there is pronounced variability of response among animals, with very definite positive effects related to chemical exposure in a single animal but less than the criteria above.

The oedema reaction, in one test (Huntsman Textile Effects GmbH, 1975) was not fully reversible within 72 hours on abraded skin but fully reversible within 72 hours on intact skin. According to the ECHA Guidance on the application of Regulation (EC) n. 1272/2008, the calculation of mean scores should normally be restricted to the results obtained from intact skin. The means for the other tests did not exceed the 2.3 value, and there was not pronounced variability of response among animals therefore the test substance has not need to be classified.

 

Eye Irritation

According to the CLP Regulation (EC n. 1272/2008), Serious eye damage means the production of tissue damage in the eye, or serious physical decay of vision, following application of a test substance to the anterior surface of the eye, which is not fully reversible within 21 days of application

Eye irritation means the production of changes in the eye following the application of test substance to the anterior surface of the eye, which are fully reversible within 21 days of application.

A substance has to be classified as Category 1 (Irreversible effects on the eye), If, when applied to the eye of an animal, a substance produces:

— at least in one animal effects on the cornea, iris or conjunctiva that are not expected to reverse or have not fully reversed within an observation period of normally 21 days; and/ or

— at least in 2 of 3 tested animals, a positive response of:

— corneal opacity ≥ 3 and/or

— iritis > 1,5 calculated as the mean scores following grading at 24, 48 and 72 hours after installation of the test material.

A substance has to be classified as Category 2 (irritating to eye) if, when applied to the eye of an animal, a substance produces:

at least in 2 of 3 tested animals, a positive response of:

-          corneal opacity ≥ 1 and/or

-          iritis ≥ 1, and/or

-          conjunctival redness ≥ 2 and/or

-          conjunctival oedema (chemosis) ≥ 2

calculated as the mean scores following grading at 24, 48 and 72 hours after installation of the test material, and which fully reverses within an observation period of 21 days.

Based on the provided data no classification for eye irritation is warranted under the CLP Regulation.