Sentence examples for amount of copper from inspiring English sources

The amount of copper in an ore can vary from 0.4percenttoto more than 12percentt.

Legislation in several countries is progressively reducing the tolerated amount of copper in friction materials.

Traditional photochromic eyeglasses are generally alkali boroaluminosilicates with 0.01 to 0.1 percent silver halide and a small amount of copper.

Late on a Friday night it would be difficult to measure the amount of copper in her blood — his hospital laboratory didn't even do that test.

They modified the design of the Dalkon Shield, adding a small amount of copper and a multifilament wick to aid in its removal.

The metal commonly used is an alloy composed mostly of zinc with a small amount of copper, darkened to achieve a black colour that does not fade.

Both of the studied bimetallic catalysts lose a significant amount of copper during the standardizing cycling and the stress-test.

The amount of copper transport through the liquid membrane after 90 min was 99% at 25 °C.

Test data also revealed that the amount of copper that migrated into the concrete matrix is time dependent.

Cu3Sn is adjacent to the Cu substrate and its thickness decreases with increasing the amount of copper in solder.

A previous version of this post misstated the amount of copper Revett Minerals mine produces a year and incorrectly reported the outcome of the appellate court's ruling.