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[Source: International Code of Conduct] Median effective concentration (EC50): Statistically derived median concentration of a substance in an environmental medium expected to produce a certain effect in 50 % of test organisms in a given population under a defined set of conditions. Note: ECn refers to the median concentration that is effective in n % of the test population. (...) [Source: IUPAC] Median lethal concentration (LC50): Statistically derived median concentration of a substance in an environmental medium expected to kill 50 % of organisms in a given population under a defined set of conditions.
Language:English
Score: 680691.16 - https://www.fao.org/pesticide-...ns/terms-and-definitions-m/zh/
Data Source: un
[Source: International Code of Conduct] Median effective concentration (EC50): Statistically derived median concentration of a substance in an environmental medium expected to produce a certain effect in 50 % of test organisms in a given population under a defined set of conditions. Note: ECn refers to the median concentration that is effective in n % of the test population. (...) [Source: IUPAC] Median lethal concentration (LC50): Statistically derived median concentration of a substance in an environmental medium expected to kill 50 % of organisms in a given population under a defined set of conditions.
Language:English
Score: 680691.16 - https://www.fao.org/pesticide-...ns/terms-and-definitions-m/es/
Data Source: un
[Source: International Code of Conduct] Median effective concentration (EC50): Statistically derived median concentration of a substance in an environmental medium expected to produce a certain effect in 50 % of test organisms in a given population under a defined set of conditions. Note: ECn refers to the median concentration that is effective in n % of the test population. (...) [Source: IUPAC] Median lethal concentration (LC50): Statistically derived median concentration of a substance in an environmental medium expected to kill 50 % of organisms in a given population under a defined set of conditions.
Language:English
Score: 680691.16 - https://www.fao.org/pesticide-...ns/terms-and-definitions-m/fr/
Data Source: un
DISCUSSION 2.1 The § 3.4.8 of ICAO Doc 9691 Manual on Volcanic Ash, Radioactive Material and Toxic Chemical Clouds states ‘ Unfortunately, at present there are no agreed values of ash concentration which constitute a hazard to jet aircraft engines. … In view of this, the recommended procedure in the case of volcanic ash is exactly the same as with low-level wind shear, regardless of ash concentration — AVOID AVOID AVOID.’ (...) The strict application of this rule led to the cancellation of more than one hundred thousands flights due to the closure of a large part of the European airspace in April 2010. 2.3 To unlock the crisis, thresholds of concentration acceptable or hazardous for turbojet engines were given to the VAACs. New requirements came from the NAA (National Aviation Authorities) to be provided with concentrations maps based on these thresholds with a system of three coloured areas (cyan, grey, red) corresponding to LOW, MEDIUM and HIGH concentration prediction.
Language:English
Score: 680429.64 - https://www.icao.int/WACAF/Doc...2011/MET_SG10/Docs/ip05_en.pdf
Data Source: un
INTRODUCTION 1.1 While the Instructions are clear on how certain concentrations of formaldehyde and formaldehyde solutions (i.e. concentrations not less than 25% formaldehyde under UN 1198 and UN 2209) should be classified, there is some confusion on the proper classification of lower concentrations. In particular, some have indicated that certain lower concentrations should be regulated on the basis of their posing a risk to crew members (see 2;9.2.1 e)). 1.2 To clarify how these lower concentration solutions should be classified, the International Air Transport Association (IATA) has included a light typed entry in the IATA Dangerous Goods Regulations covering formaldehyde solutions in the range of 10% or more formaldehyde but less than 25%. (...) By implication, one assumes that lower concentrations are not subject to the Instructions. 1.3 DGAC proposes that the Technical Instructions be amended to similarly reflect the guidance provided by the IATA Dangerous Goods Regulations and also clarify that lower concentrations are not subject to the Instructions. — — — — — — — DGP/23-WP/13 Apéndice APÉNDICE Parte 3 LISTA DE MERCANCÍAS PELIGROSAS, DISPOSICIONES ESPECIALES Y CANTIDADES LIMITADAS Y EXCEPTUADAS . . .
Language:English
Score: 680019.14 - https://www.icao.int/safety/Da...0Papers/DGP.23.WP.013.2.sp.pdf
Data Source: un
Exposure assessment Groundwater concentration is considered on a case-by-case basis. (...) The methodology to predict groundwater concentration uses the concentration in porewater of agricultural soils as an indication for potential groundwater levels. (...) Other regulators apply legislated maximum allowable concentrations in drinking water sources as trigger values.
Language:English
Score: 679721.8 - https://www.fao.org/pesticide-...al-risks/groundwater-risks/zh/
Data Source: un
Exposure assessment Groundwater concentration is considered on a case-by-case basis. (...) The methodology to predict groundwater concentration uses the concentration in porewater of agricultural soils as an indication for potential groundwater levels. (...) Other regulators apply legislated maximum allowable concentrations in drinking water sources as trigger values.
Language:English
Score: 679721.8 - https://www.fao.org/pesticide-...al-risks/groundwater-risks/es/
Data Source: un
Exposure assessment Groundwater concentration is considered on a case-by-case basis. (...) The methodology to predict groundwater concentration uses the concentration in porewater of agricultural soils as an indication for potential groundwater levels. (...) Other regulators apply legislated maximum allowable concentrations in drinking water sources as trigger values.
Language:English
Score: 679721.8 - https://www.fao.org/pesticide-...al-risks/groundwater-risks/fr/
Data Source: un
Article 28Where a concentration has or may have effect of eliminating or restricting competition, the Anti-monopoly Authority under the State Council shall make a decision to prohibit the concentration. However, if the business operators concerned can prove that the concentration will bring more positive impact than negative impact on competition, or the concentration is pursuant to public interests, the Anti-monopoly Authority under the State Council may decide not to prohibit the concentration. Article 29 Where the concentration is not prohibited, the Anti-monopoly Authority under the State Council may decide to attach restrictive conditions for reducing the negative impact of such concentration on competition.
Language:English
Score: 678906.9 - https://www.icao.int/sustainab...na/Anti-monopoly-Law_China.pdf
Data Source: un
Analytical methods Concentration curves Income-related health inequality was depicted using concentration curves. (...) However, if poor health is more than proportionately concentrated on the poor (rich), the concentration curve would lie above (below) the 45-degree line (20). (...) Pre-covid-19 and covid-19 era concentration curves Figure 1 presents concentration curves for the pre-covid-19 and covid-19 periods. 11 Figure 1: Concentration curves for poor health (2017 and 2020) Note: Concentration curves not adjusted for Erreygers’ correction As shown in Figure 1, income-related health inequalities were generally concentrated on the poor given that both concentration curves largely lay above the 45-degree line.
Language:English
Score: 677869.73 - https://www.uneca.org/sites/de...-_a_decomposition_analysis.pdf
Data Source: un