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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The abbreviation mg/m³ stands for milligrams(mg) of a material per cubic metre(m³) of air. It is a unit of metric measurement for concentration(weight/volume). The concentrations of any airborne chemical can be measured in mg/m³, whether it is a solid, liquid, gas or vapour.  2, record 1, English, - milligram%20per%20cubic%20metre

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

L'abréviation mg/m³ signifie milligrammes (mg) d'une matière par mètre cube (m³) d'air. C'est une mesure métrique exprimant la concentration (poids/volume). On peut mesurer la concentration de matières chimiques dans l'air en mg/m³.  3, record 1, French, - milligramme%20par%20m%C3%A8tre%20cube

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 OBS

Un símbolo […] es una representación gráfica generalmente del ámbito científico con validez internacional: unidades básicas y derivadas del sistema internacional (kg, m, s), elementos químicos (S, de azufre; K, de potasio, o N, de nitrógeno), operaciones matemáticas (+, %), unidades monetarias ($, €), etcétera. Como se ve, a diferencia de las abreviaturas, que son siempre acortamientos gráficos de la palabra que desarrollan (tel., de teléfono), los símbolos son invariables en plural y no llevan punto abreviativo.  2, record 1, Spanish, - miligramo%20por%20metro%20c%C3%BAbico%20de%20aire

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Glycerin: TLV (Threshold Limit Value): 30 mppcf (mist).  4, record 2, English, - million%20of%20particles%20per%20cubic%20foot

Record number: 2, Textual support number: 1 OBS

mppcf : millions of particles per cubic foot of air. Based on impinger samples counted by light-field techniques. Usually expressed in mg/m³.  1, record 2, English, - million%20of%20particles%20per%20cubic%20foot

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

mppcf : Millions de particules par pied cube d'air. Mesuré à partir d'échantillons d'impacteurs comptés par la méthode du champ lumineux. Exprimé habituellement en mg/m³.  1, record 2, French, - million%20de%20particules%20par%20pied%20cube

Record number: 2, Textual support number: 2 OBS

mpppc : Abréviation obtenue auprès de la CSST (Commission de santé et de sécurité au travail).  2, record 2, French, - million%20de%20particules%20par%20pied%20cube

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 OBS

mpppc (mppcf) : Millones de partículas por pie cúbico de aire. Basado en muestras de impacto contadas por técnicas de campos luminosos (OSHA).  1, record 2, Spanish, - mill%C3%B3n%20de%20part%C3%ADculas%20por%20pie%20c%C3%BAbico

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The concentration of a contaminant refers to its quantity in the air. For gaseous contaminants, the concentration is expressed as a ratio of the volume of contaminants present in one billion volumes of air, or ppb. A similar unit is the parts per ten million, or pptm. One pptm consists of 100 ppb. For particulates, the concentration is expressed as a ratio of the mass of the particulates present in one cubic metre(m³) of air. The unit used for the mass is the microgram²(or µg), so the concentration is expressed in units of mg/m.  2, record 3, English, - part%20per%20ten%20million

Record number: 3, Textual support number: 2 CONT

Carbon monoxide concentrations are in units of parts per ten million (pptm).  3, record 3, English, - part%20per%20ten%20million

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

L'action de ce gaz est telle qu'il en suffit d'une partie par dix millions de parties d'air pour mettre un homme hors de combat dans l'espace d'une minute.  1, record 3, French, - partie%20par%20dix%20millions

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The concentration of a material in air that on the basis of laboratory tests (respiratory route) is expected to kill 50% of a group of test animals when administered as a single exposure (usually 1 or 4 hours).  3, record 4, English, - lethal%20concentration%2050

Record number: 4, Textual support number: 1 OBS

The LC₅₀ is expressed as parts of material per million parts of air, by volume(ppm) for gases and vapours, as micrograms of material per litre of air(mg/L), or milligrams of material per cubic metre of air(mg/m³) for dusts and mists, as well as for gases and vapours.  3, record 4, English, - lethal%20concentration%2050

Record number: 4, Textual support number: 2 OBS

LC50: abbreviation standardized by ISO.  6, record 4, English, - lethal%20concentration%2050

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

[...] quantité d'une matière sous forme de vapeur, exprimée en millilitres par mètre cube d'air, [ou] sous forme de poussière ou de brouillard, exprimée en milligrammes par litre d'air et mesurée à la pression atmosphérique normale [...] qui, lorsque administrée par inhalation continue à un groupe échantillon d'au moins 10 jeunes rats adultes albinos, mâles et femelles, [...] durant une heure [...] ou durant quatre heures, cause la mort de 50 pour cent du groupe dans les 14 jours [...]  6, record 4, French, - concentration%20l%C3%A9tale%2050

Record number: 4, Textual support number: 1 OBS

CL50 : Lorsqu'il n'y a pas d'espace entre le chiffre 50 et l'abréviation, ce chiffre se place la plupart du temps en indice.  7, record 4, French, - concentration%20l%C3%A9tale%2050

Record number: 4, Textual support number: 2 OBS

teneur létale 50 p. 100; teneur létale moyenne : Dans les «Enviroguides» publiés par Environnement Canada (en anglais cette collection est appelée «Envirotips»), le terme «teneur» a été choisi de préférence à «concentration».  7, record 4, French, - concentration%20l%C3%A9tale%2050

Record number: 4, Textual support number: 3 OBS

concentration létale médiane : La norme ISO définit « lethal concentration»/«concentration létale» au sens de «median lethal concentration»/«concentration létale médiane»; la concentration létale médiane est l'expression la plus courante de la concentration létale, mais elle n'en demeure pas moins un spécifique.  8, record 4, French, - concentration%20l%C3%A9tale%2050

Record number: 4, Textual support number: 4 OBS

LC50 : abréviation normalisée par l'ISO.  8, record 4, French, - concentration%20l%C3%A9tale%2050

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Concentración, calculada estadísticamente, de una sustancia en el medio, que se espera que mate al 50% de los organismos de una población bajo un conjunto de condiciones definidas.  2, record 4, Spanish, - concentraci%C3%B3n%20letal%20media

Record number: 4, Textual support number: 1 CONT

Sin embargo, se debe tener en cuenta que una definición más exacta requiere la utilización de límites cuantitativos de contenido de sustancias tóxicas o el uso de definiciones que establecen LC50 (concentración letal media que mata al 50% de los organismos de laboratorio) tales como las que se usan en Estados Unidos (Environmental Protection Agency, 1980) o en el Estado de Sao Paulo, Brasil (CETESB, 1985).  4, record 4, Spanish, - concentraci%C3%B3n%20letal%20media

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

NIOSH [National Institute for Occupational Safety and Health] recommended to OSHA [Occupational Safety and Health Administration] that exposure to nickel be limited to 0. 015 mg/m³(as a 10-hour TWA [=time-weighted average]) because of observed carcinogenicity of nickel metal and all inorganic nickel compounds.  3, record 5, English, - inorganic%20nickel%20compound

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

Le nickel inorganique exerce une action astringente sur les muqueuses. Des sensibilisations accompagnées de manifestations allergiques peuvent survenir chez les personnes sensibles. Parfois apparition d'une dermatite du nickel.  3, record 5, French, - compos%C3%A9%20inorganique%20du%20nickel

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

The vapour concentration of the material above which no further volatilization can take place; it can be computed from : C_s=1315. 12(R) [superscript-1](P)(MW)(T) ^-1 where Cs is the saturation concentration(mg/m^3</sup>) ;R is the Universal Gas Constant(0. 08205 L-atm/mol-K) ;P is the vapour pressure(mm Hg) ;T is the temperature(K)(Temperature(degree C) + 273. 16) ;MW is the gram molecular weight of the material; 1315. 12 is the conversion factor(from mm Hg to ppm).  2, record 6, English, - saturation%20concentration

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Concentration correspondant à la saturation.  5, record 6, French, - charge%20saturante

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

... all market requirements, reserves and deliverability tabulations shall show gas quantities in both cubic metres at a temperature of 15°C and an absolute pressure of 101. 325 kPa and in joules on a dry basis(where dry gas has a moisture content of less than 110 mg/m³.  1, record 7, English, - dry%20basis

Record number: 7, Textual support number: 1 OBS

See SOR/79-30, section 1.  2, record 7, English, - dry%20basis

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

Voir DORS/79-30, article 1.  2, record 7, French, - base%20s%C3%A8che

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Ontario has specified an emission limit of 830 mg/m³ of sulphur dioxide(half-hour average).  2, record 8, English, - half%2Dhour%20average

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

En Ontario, la norme d'émission pour l'anhydride sulfureux impose une teneur limite de 830 mg/m³ (moyenne sur une demi-heure).  3, record 8, French, - moyenne%20sur%20une%20demi%2Dheure

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Suggested or Regulated Limits.... Air. Although workplace limits have been set(the 8-hour TLV is 1050 mg/m³), no environmental recommendations have been specifically made.  2, record 9, English, - workplace%20limit

Record number: 9, Textual support number: 1 OBS

Compare with "threshold limit value", "threshold limit value at place of work" and "maximum permissible concentration".  3, record 9, English, - workplace%20limit

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

Limites maximales admissibles. [...] Qualité de l'air. - La teneur limite aux postes de travail, ou TLV [voir cette fiche], est fixée à 1050 mg/m³ (pour huit heures), mais aucune teneur limite en matière de pollution atmosphérique n'a été recommandée.  4, record 9, French, - concentration%20maximale%20admissible%20dans%20les%20ambiances%20professionnelles

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

Factor for conversion from ppm to mg/m³ of vapour.  1, record 10, English, - vapour%20weight%20to%20volume%20conversion%20factor

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Facteur permettant de convertir, dans le cas des teneurs, les ppm en mg/m³.  1, record 10, French, - facteur%20de%20conversion%20masse%2Dvolume%20pour%20les%20vapeurs

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 CONT

Deposition patterns for hydrogen and sulfate ion are similar to that of pH on this scale, with the pH 5 contour typically corresponding to a hydrogen ion deposition of 10 mg m-2y^-1(10 meg m-2y^-1) and to an excess sulfate(i. e., with seasalt sulfate deducted) ion deposition of ca. 1 g S m-2y^-1(10 meg m-2y^-1).  1, record 11, English, - seasalt%20sulfate

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish