Test Method for Distillation of Plant Spray Oils (Withdrawn 1997)

General Information

Status
Withdrawn
Withdrawal Date
09-Jun-1998
Current Stage
Ref Project

Buy Standard

Standard
ASTM D447-93 - Test Method for Distillation of Plant Spray Oils (Withdrawn 1997)
English language
3 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

ASTM DU47 93 0759530 0523879 534
AMERICAN SOCIETY FOR TESTING AND MATERIALS
(# Designation: D 447 - 93
1916 RaceSt. Philadelphia, Pa 19103
Reprinted from the Annual Book of ASTM Standards. CopyrgM ASTM
If not listed in the current combined index, will appear in the next ediiion.
Standard Test Method for
Distillation of Plant Spray Oils'
This standard is issued under the fixed designation D 447; 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. A
superscript epsilon (c) indicates an editorial change since the last revision or reapproval.
5. Apparatus
1. Scope
5.1 Ail items listed in 5.1.1 to 5.1.7 shail conform to
1.1 This test method covers the determination of the
Specification E 133. Ail of the following references are to
volatility of plant spray oils by means of distillation. Its
Specification E 133:
primary purpose is to establish the classification of a spray oil
5. I. 1 Distilling Flask, Flask B (1 25 mL).
by determining the fraction distilled at specified tempera-
5.1.2 Condenser and Cooling Bath, Section 5 and Figs. 1
tures. Both a manual method and an automatic method are
and 2 of Specification E 133.
specified.
5.1.3 Heater, Section 7 and Figs. I and 2 of Specification
1.2 In cases of dispute, the referee test method is the
manual test method. E 133.
5.1.4 Flask Support, Board C (51 mm (2.0-in.) hole]. An
1.3 The values stated in SI units are to be regarded as the
will completely cover the top of the
standard. The values in parentheses are for information only. additional board, which
shield, is split and recessed to fit the neck of the flask.
1.4 This standard does not purport to address all of the
5.1.5 Graduated Cylinder, Graduate B, 100 mL, as shown
safety problems, if any, associated with its use. It is the
in Fig. 4 of Specification E 133. The cylinder must have
responsibility of the user of this standard to establish appru
graduations at the 5 mL level and from 90 to 100 mL in
priate safety and health practices and determine the applica-
of regulatory limitations prior to use. For specific 1-mL increments. For automatic apparatus, the cylinder
bility
3. shail conform to the physical specifications described in this
hazard statements, see Note
section, with the exception of the graduations.
5.1.5.1 For automatic apparatus, the level follower/re-
2. Referenced Documents
cording mechanism of the apparatus will have a resolution of
2.1 ASTM Standards:
0.1 mL, with an accuracy of I1 mL. The calibration of the
D 850 Test Method for Distillation of Iíidustrial Aromatic
assembly should be confirmed according to the manufactur-
Hydrocarbons and Related Materials2
er's instructions at regular intervals. The, typicai calibration
D 1078 Test Method for Distillation Range of Volatile
procedure involves the verification of the output with the
Organic Liquids2
receiver containing 5 and 100 mL of material, respectively.
133 Specification for Distillation Equipment3
E
5.1.6 Temperature Sensor:
E 220 Method for Calibration of Thermocouples by Com-
5.1.6.1 ASTM Thermometer 8C (SF) as prescribed in
parison Techniques4
Section 10 of Specification E 133.
NOTE 1-Thermometers heated to high temperatures, in the range
3. Summary of Test Method
required for spray oil distillations, sometimes develop stresses that may
affect the accuracy of calibration. It is recommended that, when
3.1 A 100 mL sample is distilled in a 125-mL flask at a
thennometers vary from the standard thermometer when checked at
rate of 4 to 6 mL/min. The temperature is recorded at 5 mL
be allowed to rest at
any convenient temperature, the thermometers
distilled intervals.
room temperature for at least 24 h to relieve stresses.
5.1.6.2 Temperature measurement systems using thermo-
4. Significance and Use
couples or resistance thermometers must exhibit the same
4. I To obtain optimum persistence with minimal damage
temperature lag and accuracy as the equivalent mercury in
to fruit and foliage, a plant spray oil should possess appro-
glass thermometers. Confmation of the calibration of these
as indicated by distillation. A
priate volatility characteristics,
temperature sensors is to be made on a regular basis. This
narrow range, for example, 55'C, ensures uniform evapora-
can be accomplished as described in Method E220,
tion, while the proper level of initiai and final boiling points
potentiometrically by the use of standard precision resis-
prevents either too rapid or undesirably prolonged evapora-
tance, depending on the type of probe. Another technique is
tion of the oil.
to distill pure toluene in accordance with Test Method D 850
and compare the temperature indicated with that shown by
~
the above mentioned mercury in glass thermometers when
I This test method is under the jurisdiction of A
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.