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Glove Selection for Work with Acrylates Including Those Cured by Ultraviolet, Visible Light, or Electron Beam
Published in Robert N. Phalen, Howard I. Maibach, Protective Gloves for Occupational Use, 2023
Thick unlined nitrile gloves at least 0.55 mm in thickness, such as Sol-Vex 37-667 (Ansell Protective Products), are recommended for a few hours' contact with acrylates in combination with a mixture of organic solvents, used in the cleaning of printing and coating equipment contaminated with acrylates.90 Thick unlined chloroprene gloves would probably also be a good choice, but the material has not been tested against acrylates in organic solvents.90 Nitrile gloves are not recommended for protection against ketones such as methyl isobutyl ketone, methyl ethyl ketone, acetone, or most other ketones, nor to acetates such as ethyl acetate or butyl acetate.95 These solvents as well as chlorinated solvents should not be used for cleaning equipment or tools contaminated with acrylates. These gloves are not suitable for situations where exposure to HDDA or DPGDA, or acrylates labeled corrosive or toxic, especially in combination with organic solvents, may occur. For all other acrylates, these gloves seem to be safe to use up to 8 h (cumulative, starting from the first physical contact) with solvents or acrylates, unless they are physically damaged (tear or hole), or significantly changed in appearance. To avoid skin contact with acrylates on the glove surface, the gloves should be wiped clean with a piece of cloth or paper, before doffing.
Miscellaneous Radiotracers for Imaging
Published in Garimella V. S. Rayudu, Lelio G. Colombetti, Radiotracers for Medical Applications, 2019
Gopal B. Saha, Charles M. Boyd
This radionuclide decays to 203Tl 100% by electron capture with a half-life of 52 hr, and emits γ-rays of 279 keV (81%), 401 keV (5%), and 680 keV (0.9%).1 It is produced in the cyclotron utilizing the 203Tl(d,2n)203Pb reaction, where a natural thallium target is irradiated with 16-MeV deuterons.97 After irradiation, lead is separated from an acidic solution by the solvent extraction method using a methyl isobutyl ketone-isoa-myl acetate mixture (1:1). It is finally converted to 203Pb-tris or 203Pb-acetate for intravenous injection.
Respiratory system
Published in Christoph Schroth, Peter Phillips, 100 Cases in UK Paramedic Practice, 2018
Christoph Schroth, Peter Phillips
CS incapacitant spray is a 5% solution of 2-chlorobenzylidene malononitrile in methylisobutylketone (MIBK) and is propelled by nitrogen. As it is a sensory irritant, it causes a burning sensation around the eyes and the face, and may affect breathing once inhaled. Blood-shot eyes are generally present and patients should be discouraged from rubbing their eyes. The first step in treatment is to move the patient into fresh air, which the police officers have already done, followed by oxygen administration and flushing of the eyes with large amounts of cool, running water or sterile water, but not with warm water because this may cause adverse effects. Typically, about 15–20 minutes of exposure to fresh air alone are sufficient, however.
Thermoplastic, rubber-like marine antifouling coatings with micro-structures via mechanical embossing
Published in Biofouling, 2020
Tom Bus, Marie L. Dale, Kevin J. Reynolds, Cees W. M. Bastiaansen
A thermoplastic elastomer (TPE) was used (polyvinylidenefluoride hexafluoropropylene (P(VDF-HFP), Tecnoflon® N215) which was supplied by Solvay SA and which is referred to by the supplier as a fluoroelastomer copolymer. The TPE was tested via multiple techniques (XRMA, GC-MS, GPC and NMR) for toxic species and these were not found. The lubricant, a perfluorinated polyether (PFPE, Fluorolink E10/6) was also kindly supplied by Solvay SA. A perfluorinated copolymer (fluorinated ethylene propylene copolymer (FEP, TEFLON® FEP 100)) was purchased from Du Pont de Nemours Nederland B.V. The solvent, methyl isobutyl ketone (MIBK) was purchased from Acros Organics and methyl ethyl ketone (MEK) was purchased from Biosolve B.V. An adhesion promoting acrylic basecoat (experimental material XX/04901, a copolymer comprising of methyl methacrylate, lauryl methacrylate and 3-(trimethoxysilyl)propylmethacrylate), a commercial fluoropolymer, a non-biocidal marine fouling release coating (Intersleek® 1100SR), and polydimethylsiloxane (PDMS) were all supplied by Akzo Nobel N.V.
Biochemical and hematological effects of lead exposure in Iranian battery workers
Published in International Journal of Occupational Safety and Ergonomics, 2023
Fatemeh Kargar-Shouroki, Hamidreza Mehri, Faeze Sepahi-Zoeram
Blood samples (5 ml) were drawn from the exposed and non-exposed groups at the end of the work shift in tubes containing heparin-lithium and transported at 4 °C to the laboratory. About 2 ml of the blood sample and 2 ml of deionized water (blank) were prepared by adding 0.8 ml of ammonium pyrrolidine dithiocarbamate (APDC)-surfactant solution. They were then mixed on a vortex for 20 s. After that, 2 ml water-saturated Methyl isobutyl ketone (MIBK) was added, rotated on a vortex for 2 min, centrifuged at 2000 rpm for 10 min and analyzed within 2 h of extraction. Working standards and BLLs were determined by the Varian Model AA240 atomic absorption spectrometer in accordance with the NIOSH method 8003 [34]. BLLs are expressed in micrograms per milliliter.