Method of Test for Distillation of Natural Gasoline (Withdrawn 1988)

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ASTM D216-77(1982) - Method of Test for Distillation of Natural Gasoline (Withdrawn 1988)
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9009276 0019816 8T5 =
An American National Standard
Designation: D 216 - 77 (Reapproved 1982)
British Standard 4717
4Ib
Designation: 191 /65 (75)
Standard Method for
DISTILLATION OF NATURAL GASOLINE’
This standard is issued under the fixed designation D 216; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. This is also a standard of the Institute of Petroleum issued under the fixed designation IP 19 I. The final number
indicates the year of last revision.
This method was issued as a joint ASTM- IP standard in 1965.
This method has been adopted for use by government agencies to replace Method 1015 of Federal Test Method Standard No.
791 b.
cation E 133.
1. Scope
5.1.1 Flask -Standard 100-ml distillation
1.1 This method covers the distillation of
flask.
natural gasoline.
5.1.2 Condenser and Cooling Bath.
NOTE 1-The values stated in inch-pound units
5.1.3 Shield, Type 1 or 2.
are to be regarded as the standard.
5.1.4 Flask Support, Type 1 or 2 with
2. Applicable Documents board Type A.
5.1.5 Graduared Cylinder, 1 00-ml.
2.1 ASTM Standards:
5 .I .6 Gas Burner -A burner so con-
E 1 Specification for ASTM Thermometer?
structed that heat can be obtained to distill the
E 133 Specification for Distillation Equip-
product at the rate specified. The flame shall
ment’
never be so large that it spreads over a circle
of diameter greater than 4’/2 in. (1 15 mm) on
3. Summary of Method
the under surface of the asbestos board. A
3.1 A sample of 100 ml is distilled at at-
sensitive regulating valve and gas pressure
mospheric pressure without fractionation, and
governor are desirable adjuncts, as they give
readings are taken of the vapor temperatures
complete control of heating.
corresponding to the amounts distilled.
5.1.7 Electric Heater - An electric heater
may be used instead of the gas burner and
4. Significance
shall be capable of bringing over the first drop
4.1 Natural gasoline is so volatile that it
within the time specified in 8.1 when started
must be handled, measured, condensed, and
cold, and of continuing the distillation at a
recovered at lower temperatures than most
uniform rate. (A heater unit of low-heat ca-
petroleum products. This method incorpo-
pacity, adjustable from O to 750 W, has been
rates handling and other precautions for pre-
found satisfactory). When an electric heater is
cision.
employed, the portion of the shield above the
4.2 An indication of the volatility blending
characteristics that a natural gasoline will ex-
hibit when blended with refinery stocks to
’ This method is under the jurisdiction of ASTM Committee
make a finished gasoline is obtained from the
on Petroleum Products and Lubricants.
D-2
In the IP. this method is under the jurisdiction of the Stan-
results of this type of distillation.
dardization Committee.
Current edition approved Aug. 26. 1977. Published October
5. Apparatus 1977. Originally published as D216-25. Last prexious edition
D216-54 (1976).
5.1 The apparatus listed in the following,
.4miral Book oj’ASTM Slandards, Vols 05.03 and 14.01.
’. Iwiirol Book ofAS7’M Standards. Vols 05.03 and 14.02.
5.1.1 through 5.1.5, shall conform to Specifi-
lA4
~
-
W 900927b 0019817 731 =
D216- @ 191
board shall be the same as with the gas 7.5 Fit the thermometer (previously cooled
burner, but the part below the board may be
to a temperature of 32 to 40°F (O to 4.5"C)
omitted.
and dried) tightly into the flask with a suitable
5.1.8 Thermometer, having a range as
cork so that it will be in the middle of the
shown below and conforming to the require- neck, and so that the lower end of the capil-
ments for ASTM Thermometer 7F or 7C, as
lary tube is on a level with the inside of the
prescribed in Specification E 1, or IP ther-
bottom of the vapor outlet tube at its junction
mometer 5C.
with the neck of the flask.
7.6 Place the charged flask in the 11/4-in.
Thermometer Number
Temperature Range ASTM IP
(32-mm) opening in the 6 by 6-in. (150 by
-2 to +3OO0C 7c 5c
150-mm) asbestos board with the vapor outlet
30 to 580°F 7F .
tube inserted into the condenser tube. A tight
connection must be made by means of a cork
6. Sampling
through which the vapor tube passes. Adjust
6.1 Samples should be collected in a previ-
the position of the flask so that the vapor tube
ously cooled bottle, preferably by immersing
extends into the condenser tube not less than
the bottle in the liquid, where possible, and
1 in. (25 mm) nor more than 2 in. (50 mrn).
discarding the first sample. Where immersion
7.7 Place the graduated cylinder used in
is not possible the sample should be drawn off
measuring the charge without drying, at the
into a previously cooled bottle in such a man-
in such a position
outlet of the condenser tube
ner that agitation is kept at a minimum. The
that the condenser tube shall extend into the
bottle shall be closed immediately with a tight-
cylinder at least 1 in. (25 mm), but not below
fitting stopper, and placed in an ice bath or
the 100-ml mark. Immerse the graduated cyl-
refrigerator capable of bringing the gasoline
inder up to the level of the outlet of the
to a temperature of not less than 32°F (O'C),
condenser tube in a transparent bath main-
nor more than 40°F (4.5"C).
tained between the temperatures of 32 and
34°F (O and 1.i"C). Cover the top of the
7. Preparation of Apparatus
cylinder closely during the distillation with a
7.1 Fill the condenser bath with cracked
piece of blotting paper, or its equivalent, so
ice (Note 2) and add enough water to cover
cut as to fit the condenser tube tightly. A lead
the condenser tube. Maintain the temperature
washer, or other suitable material, resting on
between 32 and 34°F (O and 1.1"C). Agitation
the blotting paper is a convenient accessory as
with air gently aids in maintaining the re-
it serves to hold the paper tightly against the
quired temperature range.
top of the cylinder and also provides the addi-
NOTE 2 -Any other convenient cooling medium
tional weight necessary to overcome the buoy-
may be used.
ant effect of the liquid in the cooling bath.
7.2 Swab the condenser tube to remove
8. Procedure
any liquid remaining from the previous test. A
piece of soft, lint-free cloth attached to a cord 8.1 When everything is in readiness, apply
or copper wire may be used for this purpose. heat immediately at a uniform rate, so regu-
7.3 Measure a 100-ml sample in the 100- lated that the first drop of the condensate falls
ml graduated cylinder at 32 to 40°F (O to from the condenser in notless than 2 min nor
4.5"C) and transfer it directly to the distil1.a- 5 min. When the first drop falls
more than
tion flask. Both the flask and the graduated from the end of the condenser, move the re-
cylinder shall have been cooled to a tempera- ceiving cylinder so that the end of the con-
ture of from 32 to 40°F (O to 4.5"C) before denser tube shall touch the side of the cylin-
use. Do not permit any of the liquid to flow der. Then regulate the heat so that the first 10
into the vapor tube. ml of
...

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