Chemistry Archive

Chemistry Files

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Distribution, degradation and toxicity of pesticides at environmentally realistic temperatures (NT TR 496)

NT TR 496

  • The OECD guideline for measuring adsorption-desorption was applied. The guideline was found to be adequate for determining the equilibrium distribution in adsorption studies, but not the sorption/desorption kinetics for very rapidly sorbing substances. The recently developed guidelines for studying biodegradation under environmentally realistic conditions were applied.

File size: 1.87 MB Download

Natural organic matter in the Nordic countries (NT TR 479)

NT TR 479

  • The NOMiNiC project
    1. TOC intercalibration
    2. Physico-chemical characteristics of DOM

File size: 543.47 KB Download

Test methods for monitoring genetically modified microorganisms (GMMs) in nature (NT TR 455)

NT TR 455

  • Genetically modified microorganisms (GMMs) are promising for many environmental and agricultural applications, including bioremediation of toxic chemicals and bio control of plant diseases. This report provide recommendations for test methods that are suitable for monitoring of GMMs in Nordic countries.

File size: 1.43 MB Download

Determination of total or partial trace element content in soil and inorganic waste materials (NT TR 446)

NT TR 446

  • A large number of different methods are available for the determination of the content of trace elements in soil and inorganic waste materials, and since these methods often are used at random and without proper justification, guidance and documentation, a considerable confusion exists in this area.


File size: 685.83 KB Download

Round Robin - Chemical emission testing by use of FLEC (NT TR 438)

NT TR 438

  • The purpose of this project was to harmonise chemical emission testing in the Nordic countries in order to define a uniform test procedure, test conditions, and reporting.

File size: 2.22 MB Download

Assessment of Compost Maturity and Ecotoxicity (NT TR 404)

NT TR 404

  • The purpose of the Nordtest project was to identify the problems associated with the utilization of compost in the Nordic countries.

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Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.