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potential dust hazards

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230513
EISBN: 978-1-62708-298-3
... to beryllium dust and typical hazard controls Table 29.1 Signage for areas of potential exposure to beryllium dust and typical hazard controls Classification Criteria Example posting Work controls Beryllium-regulated area Airborne or the potential for airborne beryllium contamination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230499
EISBN: 978-1-62708-298-3
... inhalation hazard. When evaluating operations, consideration must be given to potential exposures from activities in support of these operations, such as setup, preparation, cleanup, and maintenance. Source: Brush Wellman 2005a Possible beryllium-oxide-exposure sources when working with beryllium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... interested in observing the structure without recording it on film, sample preparation can be simplified without altering the results if one has a thorough understanding of the potential problem areas. In this chapter, the techniques used to prepare metallographic samples for light microscopy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
... might simulate a humid tropical area, the salty air of a seaside area, a salted road in winter, or one of many others. Other accelerated tests measure a given behavior of the materials by electrochemical means, such as the pitting-breakdown potential in an anodic polarization test, and relate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.9781627083041
EISBN: 978-1-62708-304-1
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120085
EISBN: 978-1-62708-269-3
... systems must be cleaned frequently. They must be equipped to cope with the re hazard associated with titanium dust. A fine dust remains on the titanium from the blasting operation, particularly when mineral abrasives have been used. This is not considered detrimental, although a washing or pickling...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780131
EISBN: 978-1-62708-268-6
... the escape of lubricating fluids, which can result in overheating, friction-induced damage to mating parts, lockup of moving parts, and damage resulting from the escaping lubricant. Leaks can allow hazardous liquids or gases to escape. Leaks can result in loss of pressure or creation of excess pressure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380039
EISBN: 978-1-62708-456-7
... them. Contaminants can include anything that happens to be floating around the shop, such as dust, dirt, debris, rust particles, oil, and soot. Applications Combustion products atmospheres can be used on raw stock, rough-machined steel parts, and finish-machined low-alloy steels at temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
... is an adherent cuprous oxide (Cu 2 O) layer. Another passive state can be obtained when the metal potential is shifted to more positive values, forming copper oxide (CuO)—as seen on the Pourbaix (potential-pH) diagrams of copper in water ( Fig. 13.2 ). Fig. 13.2 Pourbaix diagram (potential-pH) for copper...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... Beryllium is considered extremely hazardous to health when sufficient quantities of dusts, mists, or fumes containing particles small enough to enter the lungs (typically 10 μm or less) are inhaled. Sectioning, grinding, and polishing operations that produce dusts or fumes should be performed under...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... and be hazardous. Handling ingots with large molten interiors is also dangerous. As noted, a solenoid around the water jacket can provide control of the arc and the molten pool, but they are not very useful for overcoming extraneous magnetic effects from poor furnace designs and locations. Well-designed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290009
EISBN: 978-1-62708-319-5
..., this powder gives off 25% of its mass during sintering due to evaporation of retained impurities. Such nanoscale powder is hazardous. Once dispersed in air, the powder remains suspended, which can create an explosion hazard. If inhaled, serious concerns arise over toxicity or long-term physiological damage...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
... of such contaminants as rust, dirt and dust, salts, oil and grease, old paint, and mill scale. Other areas of surface preparation must also be addressed. Coatings will generally not cover weld spatter properly. Sharp edges cause paint to draw thin because of surface tension effects and should be eliminated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550193
EISBN: 978-1-62708-307-2
... to x-rays and other forms of high-energy electromagnetic radiation. The disadvantages of beryllium include high cost, somewhat difficult fabrication, and the toxicity of dust and airborne particulates (see the section “ 4.12 Health and Safety ” in this chapter). Unalloyed beryllium is readily...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230339
EISBN: 978-1-62708-298-3
.... Accordingly, heavy stock removal is usually performed dry. Advantages of wet cutting are improved cutting action and a reduction of airborne beryllium dust. Health hazards may also dictate the use of wet machining/cutting. In some operations, wet cutting must be used due to the difficulty in collecting dry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... sources (both within the metal and for relative contact between dissimilar metals) Difference in potential of dissimilar materials; distance apart; relative areas of anode and cathode; geometry (fluid retention); mechanical factors (for example, cold work, plastic deformation) Environmental sources...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... and physical characteristics to perform their intended functions. Principal requirements of penetrants are: Chemical stability and uniform physical consistency A flash point not lower than 95 °C (200 °F); penetrants that have lower flash points constitute a potential fire hazard A high degree...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370095
EISBN: 978-1-62708-447-5
... logically to maximize product flow. Small and medium-sized castings are randomly oriented during the shakeout operation, which presents a challenge for automation. Castings from different molding lines may share a common shakeout unit, where the potential for mixing different castings is high. Devices...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910193
EISBN: 978-1-62708-250-1
... by the electrochemical potential, E Temperature of the environment Presence of detrimental/beneficial species Velocity/fluid flow rate Concentration of corrodent in the environment Each of these characteristics is discussed below. Another key consideration, the effects of biological organisms like...