X hits on this document

113 views

0 shares

0 downloads

0 comments

30 / 50

Hydrogen sulfide

> 4 mg/m3 (?)

none observed

Methanol

2420 ppm

0 – 1040 ppm

Water

no free water;

none observed;

nominally 40 ppm

0 to 10 ppm

Butane

2.5%

0.2 – 5%

Ethane

-

0.3 – 6%

Propylene

-

0.1 – 7%

Oil residue

0.05 ml

not measured

Ethyl Mercaptan

50 ppm

0.7 – 103 ppm

Sulfur (total, including

185 ppm

7 – 148 ppm

odorant)

Chemical resistance data and case history reports from a variety of sources were examined as part of this study to assess the compatibility of the tank materials with the commercial propane components. The compiled component data are listed below in Table 11. As expected, no source was identified that provided compatibility data for the entire composite system, so individual component evaluations were performed. We believe that there are no issues of concern at this point regarding chemical compatibility of the proposed composite components with the chemical components of commercial propane.

Table 10. Required and Observed Chemical Compositions

of Commercial Propane

Component Propane

Per ASTM 1835-2005, GPA 2140-

Previously Observed Ranges (Osborne, 2006)

84 – 99%

97, MSDS Predominantly propane;

87.5%

Alternative Underground Propane Tank Materials, Phase II—Final Report

21

September 2009 Battelle and Lincoln Composites

Document info
Document views113
Page views113
Page last viewedWed Dec 07 19:22:07 UTC 2016
Pages50
Paragraphs1139
Words13881

Comments