EN ISO 11348-2:2008/A1:2018 PDF

Name: EN ISO 11348-2:2008/A1:2018 — Water quality - Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) - Part 2: Method using liquid-dried bacteria - Amendment 1 (ISO 11348-2:2007/Amd 1:2018)
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Water quality - Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) - Part 2: Method using liquid-dried bacteria - Amendment 1 (ISO 11348-2:2007/Amd 1:2018)

Название (английский):

EN ISO 11348-2:2008/A1:2018

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 19 декабря 2018 г.
Издание:: CEN EN 11348 edition 1 version 1
ICS:: 07.100.20

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Срок поставки:2 раб. дн. (перевод)

Цена:105 €

Описание (английский):

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Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 11348-2:2008/A1:2018 is an amended international standard developed by ISO and CEN focused on water quality analysis through a biological approach. Specifically, it outlines the method for determining the inhibitory effects of water samples on the bioluminescence of Vibrio fischeri bacteria using liquid-dried bacteria. This amendment updates the original ISO 11348-2:2007 standard to enhance precision and reliability in luminescent bacteria testing.

This method is widely recognized for environmental water monitoring and toxicity assessment, offering a sensitive and rapid bioassay to evaluate potential contamination and the presence of toxic substances compromising aquatic ecosystems.

Key Topics

Luminescent Bacteria Test: The procedure quantifies how water samples inhibit light emission from the marine bacterium Vibrio fischeri, a natural luminescent microorganism.

Use of Liquid-Dried Bacteria: The test utilizes liquid-dried bacteria preparations, which improve ease of handling, longer shelf life, and consistency compared to freshly cultured bacteria.

Inhibitory Effect Measurement: The focus is on determining the degree to which water contaminants reduce bacterial light emission - an indicator of toxicity or pollution in water samples.

Reproducibility and Accuracy Improvements: Amendment 1 refines criteria, such as limiting acceptable deviation in test sample dilutions to not exceed 3% points for reliable results.

Standardized Procedure for Water Quality Laboratories: The method includes detailed steps for sample preparation, incubation, measurement, and data interpretation to ensure consistent outcomes aligned with international water quality assessment protocols.

Applications

Environmental Water Monitoring: Applied by environmental agencies to assess the ecological safety of rivers, lakes, groundwater, and coastal waters.

Pollution and Toxicity Screening: Effective for detecting and quantifying the presence of toxic chemicals, industrial effluents, agricultural runoff, and other harmful contaminants.

Wastewater Treatment Evaluation: Used to monitor inhibitory effects of treated and untreated wastewater discharges on aquatic life.

Regulatory Compliance and Reporting: Supports compliance with environmental regulations by providing evidence-based toxicity data for water bodies.

Research and Development: Valuable tool in toxicological research, ecotoxicology studies, and water treatment technology optimization.

Related Standards

ISO 11348 Series: EN ISO 11348-2 is part of a series of standards specifying luminescent bacteria test methods for water quality; other parts cover different bacterial preparation techniques.

ISO/TC 147 Water Quality Standards: Provides a wider framework for biological, chemical, and physical water testing methods.

CEN/TC 230 Water Analysis Standards: European standards harmonizing water testing methods across countries to ensure consistent environmental monitoring.

ISO 5667 Series: Standards related to water sampling procedures complement the testing methodology by ensuring representative and uncontaminated samples.

ISO 10712: Guides the analysis of toxic substances in water, supporting comprehensive water quality assessment when paired with luminescent bacteria tests.

This amendment to EN ISO 11348-2:2008 ensures continued reliability and harmonization of the luminescent bacteria test using liquid-dried Vibrio fischeri, reinforcing its role as a critical biological method for detecting toxicity in aquatic environments. Understanding and applying this standard supports water quality professionals and laboratories in safeguarding ecosystem and public health through accurate toxicity evaluation.

EN ISO 11348-2:2008/A1:2018 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 11348-2:2007

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