After 1970, the exposure level was given in milligrams per cubic meter and an exposure index (concentration of respirable dust divided by the threshold limit value for quartz) was calculated. The median index was 2.1 for the road and building material industry and 0.6 for the stonecutting ...
The respirable dust standard for respirable free crystalline silica in underground coal mines is expressed as milligrams per cubic meter (mg/m3) of respirable dust and is determined by the silica content of the dust. The Mine Safety and Health Administration (MSHA) regulates silica exposure by ...
The probable lethal concentration of the undiluted product to 50% of the test animals (LC50) is less than or equal to 2 milligrams per liter by volume when inhaled continuously for one hour or less. IMMEDIATE USE: The hazardous chemical will be under the control of and used only by the...
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After 1970, the exposure level was given in milligrams per cubic meter and an exposure index (concentration of respirable dust divided by ... P Guénel,NO Breum,E Lynqe - 《Scandinavian Journal of Work Environment & Health》 被引量: 60发表: 1989年 A dc resistivity and IP borehole survey...
"Upon the completion of the project, we will see a substantial reduction in waste gas discharge," the executive said. "And the content of dust in emissions will be decreased to 10 milligrams per cubic meter, reaching a super low level." ...
The average cotton dust concentration in the garment department was 1.7 milligrams per cubic meter (mg/cu m), which exceeded the OSHA standard of 1.0 mg/cu m. Other area concentrations ranged from 0.1 to 0.3 mg/cu m. The author recommends the substitution of a synthetic or non-toxic ...
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Themilligram per US teaspoondensity measurement unit is used to measure volume inUS teaspoonsin order to estimate weight or mass inmilligrams Theareameasurement was introduced to measure surface of a two-dimensional object. dwt/dm³ to short tn/metric c conversion table,dwt/dm³ to short tn...
while milliliters measure the volume of the space that an object occupies. Water has a density of 1 gram per milliliter. Because 1 milliliter is equal to 1 gram, they are equivalent. That being said, water, as well as beer and other similar beverages, has an explicit mass-to-volume ...