Latest Documents


7-September-2009

English

Test No. 232: Collembolan Reproduction Test in Soil

This Test Guideline is designed for assessing the effects of chemicals on the reproduction of collembolans in soil. The parthenogenetic Folsomia candida is the recommended species for use, but an alternative species such as sexually reproducing Folsomia fimetaria could also be used if they meet the validity criteria. This Guideline can be used for testing both water soluble and insoluble substances but it is not

7-September-2009

English

Test No. 230: 21-day Fish Assay - A Short-Term Screening for Oestrogenic and Androgenic Activity, and Aromatase Inhibition

This Test Guideline describes an in vivo screening assay for certain endocrine active substances where sexually mature male and spawning female fish are held together and exposed to a chemical during a limited part of their life-cycle (21 days). This assay covers the screening of oestrogenic and androgenic activity, and aromatase inhibition. The assay was validated on the fathead minnow (Pimephales promelas), the

7-September-2009

English

Test No. 455: The Stably Transfected Human Estrogen Receptor-alpha Transcriptional Activation Assay for Detection of Estrogenic Agonist-Activity of Chemicals

This Test Guideline describes an in vitro assay, which  provides mechanistical information, and can be used for screening and prioritization purposes. The test system utilises the hERalpha-HeLa-9903 cell line derived from a human cervical tumor and stably transfected. This cell line can measure the ability of a test chemical to induce hERalpha-mediated transactivation of luciferase gene expression. The cells are exposed to

7-September-2009

English

Test No. 451: Carcinogenicity Studies

The objective of a long-term carcinogenicity study is to observe test animals for a major portion of their life span for the development of neoplastic lesions during or after exposure to various doses of a test substance by an appropriate route of administration.

This Test Guideline is intended primarily for use with rats and mice, and for oral administration. Both sexes should be used. Each dose group and concurrent

7-September-2009

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.

Groups of at least 5 male and 5 female rodents are exposed 6 hours per day for 28 days to a) the test article at three or more concentration levels, b)

7-September-2009

English

Test No. 441: Hershberger Bioassay in Rats - A Short-term Screening Assay for (Anti)Androgenic Properties

The Hershberger Bioassay is an in vivo short–term screening test. It evaluates the ability of a chemical to elicit biological activities consistent with androgen agonists, antagonists or 5 á-reductase inhibitors. The current bioassay is based on the changes in weight of five androgen-dependent tissues in the castrate-peripubertal male rat: the ventral prostate, seminal vesicle (plus fluids and coagulating glands), levator

7-September-2009

English

Test No. 403: Acute Inhalation Toxicity

This method provides information on health hazard likely to arise from short-term exposure to a test article (gas, vapour or aerosol/particulate test article) by inhalation.

The revised Test Guideline describes two studies: a traditional LC50 protocol and a Concentration x Time (C x t) protocol. It can be used to estimate a median lethal concentration (LC50), non-lethal threshold concentration (LC01) and slope, and to

7-September-2009

English

Test No. 438: Isolated Chicken Eye Test Method for Identifying Ocular Corrosives and Severe Irritants

The Isolated Chicken Eye  (ICE) test method is an in vitro test method that can be used to classify substances as “ocular corrosives and severe irritants”. The ICE method uses eyes collected from chickens obtained from slaughterhouses where they are killed for human consumption, thus eliminating the need for laboratory animals. The eye is enucleated and mounted in an eye holder with the cornea positioned horizontally. The

7-September-2009

English

Test No. 509: Crop Field Trial

Crop field trials are conducted to determine the magnitude of the pesticide residue in or on raw agricultural commodities, including feed items, and should be designed to reflect pesticide use patterns that lead to the highest possible residues.

Objectives of crop field trials are to: (1) quantify the expected range of residue(s) in crop commodities following treatment according to the proposed or established good

7-September-2009

English

Test No. 229: Fish Short Term Reproduction Assay

This Test Guideline describes an in vivo screening assay for fish reproduction where sexually mature male and spawning female fish are held together and exposed to a chemical during a limited part of their life-cycle (21 days). The short term reproduction assay was validated in the fathead minnow (Pimephales promelas) and this is the recommended species. The assay is run with three test chemical concentrations and the necessary

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