chemical test Articles
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Be Prepared To Defend Your Product
The testing pressures on the chemical industry today are perhaps more significant than ever before. The U.S. Environmental Protection Agency’s (EPA) much-publicized voluntary chemical testing initiatives encourage or, more bluntly, subtly compel chemical testing. The business implications of chemical testing for both chemical producers and their downstream users are great. Chemical ...
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Puraflex Data sheet
The Puraflex product data sheet. The data sheet gives information regarding the various different physical properties of the material such as tensile strength, hydrostatic resistance, and coefficient of thermal expansion as well as the durability properties such as UV resistance, oxidative induction time, and temperature range. Information is also given with respect to the various standards to ...
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Chemical Testing Under TSCA -- Who Is On the Hook (PDF)
Manufacturers of chemical products and products that contain significant chemical components need to be aware of subtle but important changes in the “persons required to test” provisions of Section 4 of the Toxic Substances Control Act (TSCA). Historically, those persons have included chemical manufacturers, processors, or those who intend to process or manufacture a Section 4 test rule ...
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TSCA - Chemical Testing Issues
This Article introduces the Toxic Substances Control Act (TSCA),1 and describes chemical substances for which testing could be conducted under TSCA, chemical testing that could be required, persons required to conduct the tests, procedures that have been considered for selecting test chemicals, and associated legal challenges. I. TSCA The U.S. Congress enacted TSCA in 1976 to regulate the ...
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TSCA and the Future of Chemical Regulation (PDF)
Congress enacted the Toxic Substances Control Act (TSCA) in 1976. 1 Despite the passage of over two decades, its core provisions have not been substantively amended. 2 Some believe change is needed, even essential. Indeed, the question of whether TSCA is fundamentally flawed or whether EPA ’ s implementation of it is lacking, has been the subject of debate for years. While much has changed over ...
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Comparative study of biodegradability prediction of chemicals using decision trees, functional trees, and logistic regression
Biodegradation is the principal environmental dissipation process of chemicals. As such it is a dominant factor determining the persistence and fate of organic chemicals in the environment, and is therefore of critical importance to chemical management and regulation. In this study, we developed in silico methods assessing biodegradability based on a large heterogeneous set of 825 organic ...
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3 Axles 56000 Liters LPG Tank Semi Trailers
LPG tank semi trailer, also known as liquefied petroleum gas semi trailer, LPG transportation semi-trailer, etc. It is used to transport the propane isobutene and other liquid propylene ammonia liquefied gas such as methylamine acetaldehyde dedicated transport semi-trailer. We have quality lpg semi trailers for sale. Advantage Specifications The advantage of 3 Axles 56000 Liters LPG ...
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Avoidance and reproduction tests with the predatory mite Hypoaspis aculeifer: Effects of different chemical substances
Few toxicity data exist in the literature on the toxicity of chemicals to the predatory mite Hypoaspis aculeifer, but no information is available on its avoidance response. In order to assess the relevance of the avoidance behavior of H. aculeifer and the relative sensitivity of the mite in comparison with other invertebrates, avoidance and reproduction tests were conducted with seven ...
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EPA proposes HPV test rule for chemicals
Under TSCA Section 4, EPA can require manufacturers, importers, and in some cases processors of chemical substances to conduct testing of any chemical substance or mixture for which EPA makes certain findings. Under the law, EPA must find that 'there are sinsufficient data and exèrience upon which the effects of the [the] manufacture, distribution in commerce, processing, use or disposal of such ...
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REACHing Asia: Recent trends in chemical regulations of China, Japan and Korea
Will EU REACH (Registration, Evaluation, Authorisation and Restriction of Chemical substances) influence and change the chemical regulatory systems of Asia, as EU RoHS has done in China, Japan and Korea? The answer is YES. China, Japan and Korea are (or will be) filling the regulatory gap they see between REACH and their chemical regulatory systems. With its advanced chemical regulatory system ...
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SCORe-CT: a new method for testing effectiveness of sulfide-control chemicals used in sewer systems
A new method for testing the effectiveness of chemical products for sulfide control in sewers is reported. The method, called SCORe-CT (Sewer Corrosion and Odour Research – Chemical Testing), consists of two specially designed laboratory-scale systems that mimic sulfide production in real rising main sewers, and a multi-phase and multi-facet testing protocol. The monitoring tools/methods include ...
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Toxicological Evaluation, Physical, and Chemical Tests for Cosmetics
Cosmetics play a significant role in our daily lives, with millions of people using them to enhance their appearance or maintain their skincare routine. However, the safety of these products should always be a top priority. To ensure the safety and quality of cosmetics, thorough toxicological evaluation, and physical and chemical testing are crucial steps in the development and manufacturing ...
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The Use of Daphnia magna Neonates hatched from Ephippia for Toxicity Testing
Abstract :The continuous increase in the number of new chemicals as well as the discharges of solid and liquid wastes potentially hazardous for the environment has in the past years triggered the need for simple and inexpensive bioassays for routine testing. AlthoughDaphnia magnais a key test species in aquatic toxicology, toxicity testing with this species implies continuous culturing of live ...
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Training mission for Trace2o
Trace2o® Sales Executive Maud Dumas and CEO Neil Durham visited Burkina Faso and Côte D’Ivoire last week, providing detailed product training alongside an extensive question-and-answer session on Trace2o’s new range of AquaSafe portable water safety laboratories. The AquaSafe range captured the interest of water professionals, academics and NGOs active in the region. ...
By Trace2o Ltd.
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Acute Toxicity Tests with Streptocephalus Proboscideus (Crustacea / Branchipoda / Anostraca) : Influence of Selected Environmental Conditions
Abstract : The influence of selected environmental conditions on the acute toxicity of 3 selected chemicals (K2Cr2O7, CuSO4and Na pentachlorophenate) to instar II-III larvae ofStreptocephalus proboscideuswas evaluated. Mortality after a 24 h incubation was used as effect criterion. Factorial experiments were set up resulting to 25 different combinations of temperature and water hardness. The ...
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Do water quality criteria based on non‐native species provide appropriate protection for native species
The potential use of toxicity data for non‐native species to derive water quality criteria (WQC) is controversial, due to the fact that it is sometimes questioned whether criteria based on species from one geographical region provide appropriate protection for species in a different region. However, this is an important concept for the development of Chinese water quality criteria or ...
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Dispersive Behavior of Nonswelling Clays
This paper examines the possible factors that contribute to the dispersive behavior of compacted nonswelling clays and proposes the use of a synthetic organic stabilizing agent to reduce the dispersive tendency of such soils. Results of chemical tests on saturation extracts of the clays tested failed to identify them as piping susceptible. However, pinhole tests on statically compacted specimens ...
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Assessing Contaminant Sensitivity of Endangered and Threatened Aquatic Species: Part II. Chronic Toxicity of Copper and Pentachlorophenol to Two Endangered Species and Two Surrogate Species
Early life-stage toxicity tests with copper and pentachlorophenol (PCP) were conducted with two species listed under the United States Endangered Species Act (the endangered fountain darter, Etheostoma fonticola, and the threatened spotfin chub, Cyprinella monacha) and two commonly tested species (fathead minnow, Pimephales promelas, and rainbow trout, Oncorhynchus mykiss). Results were compared ...
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Exploration of daphnia behavioral effect profiles induced by a broad range of toxicants with different modes of action
Behavior is increasingly reported as a sensitive and early indicator of toxicant stress in aquatic organisms. However, the systematic understanding of behavioral effects and comparisons between effect profiles is hampered because the available studies are limited to few chemicals and differ in the exposure conditions and effect parameters examined. The aims of this study were (i) to explore ...
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Citizens Challenge EPA - Case study
A petition filed under Section 21 of the Toxic Substances Control Act (TSCA) was one of the first actions reviewed by a federal district court since TSCA was substantially rewritten in June 2016.The rulings described below pose interesting and potentially formidable challenges for TSCA stakeholders. Background TSCA Section 21 enables “any person” to submit a petition to the U.S. ...
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