Cartridges self-contained

Air-purifying half-mask or mouthpiece respirator with chemical cartridge Self-contained breathing apparatus Hose mask with blower... 

Air line breathing apparatus Canister respirator Self-contained breathing apparatus Canister respirators with particulate filters Cartridge respirator General purpose dust respirators High efficiency dust respirators... 

Wear appropriate chemical cartridge respirator depending on the amount of exposure rescue personnel should be equipped with self-contained breathing apparatus have available and use as appropriate mbber suits, full-body chemical suits, safety shoes, safety shower, and eyewash fountain. 

Goggles, impervious gloves, protective clothes and shoes are recommended. Chemical cartridge respirators are sufficient for routine handling. Air-line respirators or self-contained breathing apparatus are recommended for high concentrations. 

Personal Protective Equipment Laboratory personnel should wear appropriate chemical cartridge respirator, Butyl or Neoprene rubber gloves, and full-length faces shields with forehead protection depending on the amount of exposure. However, rescue personnel should be equipped with self-contained breathing apparatus (SCBA) and have available and use as appropriate Level A personal protective equipment (PPE). When you do not know the degree of hazard, use Level A personal protective equipment (PPE) as follows ... 

These characteristics have been examined in previous chapters. Now is the time, however, to reconsider them in order to make a proper choice of protective equipment. As we shall see when we come to look at the characteristics of the equipment, it would be dangerous to select a dust filter when a chemical cartridge respirator is needed, or a chemical cartridge respirator when a self-contained unit is needed. Several other considerations, such as those that follow, should be examined. 

Respiratory protective equipment can be divided into two broad categories air purifying and air supplying devices. Air purifying devices are items such as dust masks, chemical cartridge respirators, and gas masks. The air supplying devices are hose masks, air line respirators, and self-contained apparatus. 

Cartridge respirators are also not suitable for use in firefighting and sandblasting as well as in atmospheres containing less than the normal 21 percent of oxygen or where the concentration of the contaminants is unknown or immediately threatening to life. In these unsuitable situations, an air line respirator or a self-contained apparatus (see following) should be used. 

Winchester. US small arms manufacturer. Oliver Winchester (1810—1880) was a prosper-our shirt-maker who had some capital invested in the Volcanic Arms Co in 1855. The company made a lever-action rifle which used an odd self-contained cartridge which was simply an elongated bullet with the propelling charge in... 

The self-contained metallic cartridge is a relatively recent development in historical terms. Gunpowder has been in use as a firearms propellant for about 670 years, but the metallic cartridge is only about 160 years old. The modern self-contained metallic cartridge was perfected about 122 years ago and high-velocity types with smokeless powders were developed about 102 years ago.23... 

The earliest example of a fully self-contained cartridge was produced by Swiss engineer Jean Samuel Pauly in 1808. This cartridge was loaded directly into the breech of a firearm, which was also developed by Pauly, and was fired by a needle piercing it. 

Until 1846 all attempts to develop a satisfactory fully self-contained cartridge shared a serious disadvantage. None of them effectively sealed the chamber at the time of discharge and consequently there was a rearward escape of gas resulting in a reduction in the efficiency of the system. This problem was solved by the introduction of the metallic cartridge case which momentarily expands during the discharge process and seals the chamber. 

The first recorded examples of fully self-contained completely metallic cartridges were the pinfire cartridges of the early 1850s. These consisted of a thin copper cartridge case with a striker pin projecting radially from the base end (brass came into general use in the 1870s and replaced copper as the case... 

Direct flow filters are available typically in cartridge format, such as 10-40 in. (25-100 cm) lengths. Cartridges contain membranes that are pleated to provide the maximum amount of surface area within a single cartridge. Direct flow filters are also available as self-contained disposable capsules that do not require the use of housings. The ease of use associated with capsules has increased their use. 

Chemical safety goggles or full face shield, self-contained breathing apparatus (SCBA), positive pressure hose mark, industrial canister-type gas mask, or chemical cartridge respirator, rubber gloves, chemical protective clothing. 

PERSONAL PROTECTION Wear solvent-resistant gloves and clothing Teflon is recommended as a protective material wear splash resistant goggles enclose operations and use local exhaust ventilation at site of chemical release use a NIOSH approved full facepiece respirator with an organic cartridge where the potential exists for exposure over 10 ppm where the potential for high exposure exists, use self-contained breathing apparatus. 

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