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  • 24-November-2017

    English

    eChemPortal: Global Portal to Information on Chemical Substances

    The National Industrial Chemicals Notification and Assessment Scheme's (NICNAS) established the Inventory Multi-tiered Assessment and Prioritisation (IMAP) framework to accelerate the assessment of risks posed to human health and the environment by unassessed chemicals listed on the Australian Inventory of Chemical Substances (AICS). IMAP is a scientific and risk-based model for assessing chemicals with three tiers of assessment.

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  • 7-November-2017

    English

    Draft Guidance and Review Documents/Monographs

    Three Draft Revised Guidance Documents are open for public comments until September 2017 on Good in Vitro Method 2 Practices (GIVIMP); on Standardised Test Guidelines for 8 Evaluating Chemicals for Endocrine Disruption; and on Aqueous-phase Aquatic Toxicity Testing of Difficult to Test Substances and on Residues in Rotational Crops.

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  • 31-October-2017

    English

    Best Available Techniques to Prevent and Control Industrial Chemical Pollution

    The OECD assist governments to implement policies and practices that embody Best Available Techniques (or similar concepts) to prevent and control industrial emissions.

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  • 31-October-2017

    English

    Environment, Health and Safety News

    The November Chemical Safety newsletter provides an update on the recent events and activities of the OECD Environment, Health and Safety Programme.

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  • 23-October-2017

    English

    Integrated Approaches to Testing and Assessment (IATA)

    Five case studies reviewed in the second review cycle (2016) of the IATA Case Studies Project were published along with a considerations document highlighting the lessons and learnings stemming from the case studies.

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  • 20-October-2017

    English

    Section 4: Health Effects

    New deadlines for comments on the Test Guideline 414: Prenatal Developmental Toxicity Study by 24 November 2017.

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  • 13-October-2017

    English

    OECD Guidelines for the Testing of Chemicals

    The OECD Guidelines for the Testing of Chemicals are a collection of the most relevant internationally agreed test methods used by government, industry and independent laboratories to determine the safety of chemicals and chemical preparations, including pesticides and industrial chemicals.

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  • 9-October-2017

    English

    Test No. 405: Acute Eye Irritation/Corrosion

    This method provides information on health hazard likely to arise from exposure to test substance (liquids, solids and aerosols) by application on the eye. This Test Guideline is intended preferably for use with albino rabbit. The test substance is applied in a single dose in the conjunctival sac of one eye of each animal. The other eye, which remains untreated, serves as a control. The initial test uses an animal; the dose level depends on the test substance nature. A confirmatory test should be made if a corrosive effect is not observed in the initial test, the irritant or negative response should be confirmed using up to two additional animals. It is recommended that it be conducted in a sequential manner in one animal at a time, rather than exposing the two additional animals simultaneously. The duration of the observation period should be sufficient to evaluate fully the magnitude and reversibility of the effects observed. The eyes should be examined at 1, 24, 48, and 72 hours after test substance application. The ocular irritation scores should be evaluated in conjunction with the nature and severity of lesions, and their reversibility or lack of reversibility. Use of topical anesthetics and systemic analgesics to avoid or minimize pain and distress in ocular safety testing procedures is described.

  • 9-October-2017

    English

    Test No. 412: Subacute Inhalation Toxicity: 28-Day Study

    This revised Test Guideline 412 (TG 412) has been designed to fully characterize test article toxicity by the inhalation route following repeated exposure for a limited period of time (28 days), and to provide data for quantitative inhalation risk assessments.  It was updated in 2017 to enable the testing and characterisation of effects of nanomaterials tested.

    Groups of at least 5 male and 5 female rodents are exposed 6 hours per day for 28 days to a) the test chemical at three or more concentration levels, b) filtered air (negative control), and/or c) the vehicle (vehicle control). Animals are generally exposed 5 days per week but exposure for 7 days per week is also allowed. Males and females are always tested, but they may be exposed at different concentration levels if it is known that one sex is more susceptible to a given test article. This guideline allows the study director the flexibility to include satellite (reversibility) groups, bronchoalveolar lavage (BAL), lung burden (LB) for particles, neurologic tests, and additional clinical pathology and histopathological evaluations in order to better characterize the toxicity of a test chemical.

  • 9-October-2017

    English

    Test No. 460: Fluorescein Leakage Test Method for Identifying Ocular Corrosives and Severe Irritants

    This Test Guideline describes an in vitro assay that may be used for identifying water soluble ocular corrosives and severe irritants as defined by the UN Globally Harmonized System of Classification and Labelling, Category 1. The assay is performed in a well where a confluent monolayer of Madin-Darby Canine Kidney (MDCK) is used as a separation between two chambers. It uses a fluorescein dye as marqueur. The test substance has the potential to impair the junctions of the MDCK cells and thus to increase the monolayer¡¯s permeability. Consequently the fluorescein passes through the monolayer and the fluorescein leakage (FL) increases. The FL is calculated as a percentage of leakage relative to both a blank control and a maximum leakage control. The concentration of test substance that causes 20% FL (FL20, in mg/mL) is calculated and used in the prediction model for identification of ocular corrosive and severe irritants. The cut-off value of FL20 to identify water soluble chemicals as ocular corrosives/severe irritants is ¡Ü 100mg/mL. The FL test method should be part of a tiered testing strategy.

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