TT-N-97D
3.3 Materials. The naphtha shall consist entirely of hydrocarbons.
3.4 Requirements. The naphtha shall meet the requirements specified in table I and paragraphs
3.4.1 through 3.4.9 when tested as specified in 4.4.
TABLE I. Characteristics and requirements.
Characteristics |
Requirements |
|||||||
Type I |
Type II |
Type III |
||||||
Grade A |
Grade B |
|||||||
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
|
Specific gravity at 20 °C/20 °C |
0.810 |
0.871 |
0.770 |
0.845 |
0.825 |
0.875 |
0.855 |
0.980 |
Plash point |
-- |
-- |
-- |
-- |
27 °C (81 °P) |
-- |
50 °C (122 °P) |
-- |
Aniline point |
-- |
-- |
-- |
32 °C (90 °P) |
-- |
-- |
-- |
-- |
Mixed aniline point |
-- |
27 °C (81 °P) |
-- |
-- |
-- |
28 °C (82 °P) |
-- |
34 °C (93 °P) |
Distillation at 760 mm pressure initial boiling point |
88 °C (190 °P) |
-- |
88 °C (190 °P) |
-- |
129 °C (264 °P) |
-- |
171 °C (340 °P) |
-- |
50 percent (by volume) |
100 °C (212 °P) |
116 °C (241 °P) |
100 °C (212 °P) |
116 °C (241 °P) |
143 °C (289 °P) |
168 °C (334 °P) |
182 °C (360 °P) |
200 °C (392 °P) |
End point |
-- |
140 °C (284 °P) |
-- |
140 °C (284 °P) |
-- |
191 °C (376 °P) |
-- |
218 °C (424 °P) |
Color, Saybolt number |
+25 |
-- |
+25 |
-- |
+21 |
-- |
+18 |
-- |
Nonvolatile matter (gram/100 ml) |
-- |
0.2 |
-- |
0.2 |
-- |
0.2 |
-- |
0.2 |
3.4.1 Appearance. When tested as specified in 4.4.3, the naphtha shall be free from turbidity, suspended matter, and sediment.
3.4.2 Odor. When tested as specified in 4.4.3.1, the naphtha shall have an odor characteristic of that of aromatic naphtha and shall have only a faint aromatic residual.
3.4.3 Copper corrosion. When tested as specified in 4.4.3, the naphtha shall produce no more than a slight tarnish in accordance with Classification 1 of ASTM D 130 on the copper strip. The temperature of the naphtha and the time of immersion of the copper strip shall be as specified in table II for the different types of naphtha.
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