Effect of Natural Gas Odorants on Polyvinyl Chloride Pipe

Product R&D ◽  
1975 ◽  
Vol 14 (4) ◽  
pp. 304-308
Author(s):  
Arthur R. Knight ◽  
Arun Verma
Author(s):  
T. G. Gregory

A nondestructive replica technique permitting complete inspection of bore surfaces having an inside diameter from 0.050 inch to 0.500 inch is described. Replicas are thermally formed on the outside surface of plastic tubing inflated in the bore of the sample being studied. This technique provides a new medium for inspection of bores that are too small or otherwise beyond the operating limits of conventional inspection methods.Bore replicas may be prepared by sliding a length of plastic tubing completely through the bore to be studied as shown in Figure 1. Polyvinyl chloride tubing suitable for this replica process is commercially available in sizes from 0.037- to 0.500-inch diameter. A tube size slightly smaller than the bore to be replicated should be used to facilitate insertion of the plastic replica blank into the bore.


1886 ◽  
Vol 21 (545supp) ◽  
pp. 8698-8699
Author(s):  
S. A. Ford
Keyword(s):  

2005 ◽  
pp. 70-83 ◽  
Author(s):  
S. Kimelman ◽  
S. Andryushin
Keyword(s):  

The article analyzes the conditions of formation of the Stabilization Fund and the Development (Modernization) Fund at the expense of rental incomes from oil mining as well as rent from natural gas, platinum, gold and diamonds mining. It is argued that using the above funds in the economy is relevant taking into account factors of economic growth.


Sign in / Sign up

Export Citation Format

Share Document