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Zamak 3 is the de facto standard for the zamak series of zinc alloys; all other zinc alloys are compared to this. Zamak 3 has the base composition for the zamak alloys (96% zinc, 4% aluminum). It has excellent castability and long term dimensional stability. More than 70% of all North American zinc die castings are made from zamak 3. [2]
For example, in the 1930s Widmark measured alcohol and blood by mass, and thus reported his concentrations in units of g/kg or mg/g, weight alcohol per weight blood. Blood is denser than water and 1 mL of blood has a mass of approximately 1.055 grams, thus a mass-volume BAC of 1 g/L corresponds to a mass-mass BAC of 0.948 mg/g.
mg 15 3 4 24 4 11 6 15 Iron: mg 1.6 1.5 1.3 2.1 0.6 1.2 1.5 1.6 Magnesium: mg 60 57 51 80 52 50 74 65 Phosphorus: mg 119 108 128 235 140 149 130 229 Potassium: mg 203 129 88 193 112 230 163 194 Sodium: mg 5 16 2 1 2 1 1 1 Zinc: mg 1.2 0.8 0.8 1.8 1.0 1.2 0.7 1.9 Thiamine (B1) mg 0.29 0.17 0.19 0.34 0.24 0.14 0.15 0.19 Riboflavin (B2) mg 0.13 0. ...
Addition of small amounts of zinc in Mg-RE alloys has been shown to increase creep life by 600% by stabilizing precipitates on both basal and prismatic planes through localized bond stiffening. [19] These developments have allowed for magnesium alloys to be used in automotive and aerospace applications at relatively high temperatures. [16]
However, heavier noble gases such as radon are held less firmly together by electromagnetic force than lighter noble gases such as helium, making it easier to remove outer electrons from heavy noble gases. As a result of a full shell, the noble gases can be used in conjunction with the electron configuration notation to form the noble gas ...
Spain: 0.05% BAC (0.25 mg/L BrAC) [124] and 0.03% BAC (0.15 mg/L BrAC) for drivers with less than two years' experience and drivers of freight vehicles over 3.5 tonnes, and of passenger vehicles with more than nine seats. 0 for drivers under 18. [82] Surpassing the limit is a serious offense, fined with €500. [125]
It is often expressed in terms of mg-min/m 3. ICt 50 is the dose that will cause incapacitation rather than death. These measures are commonly used to indicate the comparative efficacy of chemical warfare agents, and dosages are typically qualified by rates of breathing (e.g., resting = 10 L/min) for inhalation, or degree of clothing for skin ...
Fallon, Nevada has long been known to have groundwater with relatively high arsenic concentrations (in excess of 0.08 mg/L). [31] Even some surface waters, such as the Verde River in Arizona, sometimes exceed 0.01 mg/L arsenic, especially during low-flow periods when the river flow is dominated by groundwater discharge. [32]