ASTM E236-66(2006)

Standard Specification for Apparatus For Microdetermination Of Alkoxyl Groups

ABSTRACT
This specification covers the design and dimensional requirements for the apparatus used in the microdetermination of methoxyl and ethoxyl groups in organic compounds. This apparatus is composed of a reaction flask, condenser with scrubber, delivery tube, and two types of receivers—one for volumetric analysis, and the other for gravimetric analysis.
SCOPE
1.1 This specification covers apparatus for the microdetermination of methoxyl and ethoxyl groups in organic compounds.  Note 1-This specification was originally developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.

General Information

• Status: Historical
• Publication Date: 31-Oct-2006
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

Relations

• Replaces: ASTM E236-66(1996) - Standard Specification for Apparatus For Microdetermination Of Alkoxyl Groups
• Effective Date: 01-Nov-2006
• Replaced By: ASTM E236-66(2011) - Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups
• Effective Date: 01-Dec-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E236 – 66 (Reapproved 2006)
Standard Specification for
Apparatus for Microdetermination of Alkoxyl Groups
This standard is issued under the fixed designation E236; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers apparatus for the microdeter-
mination of methoxyl and ethoxyl groups in organic com-
pounds.
NOTE 1—This specification was originally developed by the Committee
on MicrochemicalApparatus, Division ofAnalytical Chemistry,American
Chemical Society.
2. Reaction Flask
2.1 The reaction flask shall be of borosilicate glass and shall
conform to the requirements of Fig. 1.
3. Condenser with Scrubber
3.1 The West-type condenser with scrubber shall be of
borosilicate glass and conform to the requirements of Fig. 2.
NOTE 2—Spent scrubbing solution may be removed from the scrubber
by inserting through the side arm of the scrubber a drawn-out medicine
dropper or small rubber tube connected to a vacuum source.
NOTE 3—The scrubber is constricted to prevent scrubbing solution
All dimensions are in millimetres.
from being sucked back into the reaction flask or carried over into the
FIG. 1 Reaction Flask
receiver.
5. Receivers
4. Delivery Tube
5.1 Two types of receivers are specified, as follows:
4.1 The delivery tube shall be of borosilicate glass and
5.1.1 Receiver for Volumetric Analysis shall be of borosili-
conform to the requirements of Fig. 3.
cate glass and conform to the requirements of Fig. 4.
5.1.2 Receiver for Gravimetric Analysis shall be of boro-
silicate glass and conform to the requirements of Fig. 5.
This specification is under the jurisdiction of ASTM Committee E41 on
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
6. Keywords
Apparatus.
Current edition approved Nov. 1, 2006. Published December 2006. Originally
6.1 alkoxyl; apparatus; groups; microdetermination
´1
approved in 1964. Last previous edition approved in 2001 as E236 – 66 (2001) .
DOI: 10.1520/E0236-66R06
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