Weights, types shipping

CMP slurry is typically shipped to user sites in 20-liter (5-gal) pails for R D evaluation or 200-liter (55-gal) drums or 1000-liter (265-gal) totes for manufacturing. The difference in handling ease of each container varies due to the size, shape, and weight of the container the number, size, and location of openings in the container and the need to insert stirrers, diptubes, or other devices into the container. The variety and nonstandardization of containers present a challenge for slurry distribution equipment manufacturers and additional cost for users every different container potentially requires a different type of connection to the dispense equipment. 

Cost information comes from a vendor-supplied comparison of ACT and clay-type products. The example used was a 55-gal spill (440 lb). A spill of this size would require 880 lb of clay or 7.3 lb of ACT. At 0.10/lb for clay, the material cost would be 88, while ACT costs 9.50/lb with a total material cost of 85.50. Transportation cost of the materials was estimated by Landmark to be 1.50/lb. Once the materials have absorbed the 440 lb of contaminant, the weights increase to 1320 lb (clay and contaminant) and 447.3 lb (ACT and contaminant), and therefore respective shipping costs become 1980 and 670.95 to transport the Ml absorbents. Adding the material and shipping costs required for this 55-gal spill, total costs for clay-type absorbents is 2878 and ACT is 1026.45. These prices are based on 1996 information (D16319J, p. 9). 

It contd 300-400 lbs of cast TNT. These charges were launched from a gin which was located at the stern of the ship. The K type of gun consisted of a smodth-bore barrel attached to an expansion chamber fitted with a breech mechanism. The gun was secured to the rail of the ship and could not be elevated or trained. Variations in the range were obtd by changing the weights of propelling charges... 

The vials, which are either prepared by the laboratory or obtained from a supplier, are certified precleaned autosampler vials with PTFE-lined septum caps and magnetic stir bars inside. The vials may contain 5 ml of analyte-free water or be empty. The vials with water may be unpreserved or be preserved with approximately 1 g of sodium bisulfate to pH < 2. (We need to select the type of the preservation, which is appropriate for the soil to be sampled.) The laboratory or the manufacturer will weigh the prepared vials with labels attached, record the weight on the label, and ship them to the field sampling team. 

Polyester-based resins are also used in bulk plastics in fiberglass reinforced fabrications such as boats, auto body repairs, and for very large structures such as industrial vessels and pipes, and ships for mine sweeping [10]. This technology uses a combination of polycondensation and vinyl-type (chain reaction) technologies to obtain the final composite product. The viscous, still fluid resin used for layup is a linear unsaturated polyester of relatively low-molecular weight. Unsaturation is introduced into the backbone of the polymer by using maleic anhydride to replace a part of the phthalic anhydride (e.g., Eq. 21.4). 

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