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ASTM E236-66(2022)

(Specification)

Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups

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.2  
1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-Aug-2022
ICS
71.040.20 - Laboratory ware and related apparatus
Technical Committee
E41 - Laboratory Apparatus
Drafting Committee
E41.01 - Laboratory Ware and Supplies
Current Stage
Ref Project

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ASTM E236-66(2022) - Standard Specification for Apparatus for Microdetermination of Alkoxyl GroupsASTM E236-66(2022) - Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups
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ASTM E236-66(2022) - Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:E236 −66 (Reapproved 2022)
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 3. Condenser with Scrubber
1.1 This specification covers apparatus for the microdeter- 3.1 The West-type condenser with scrubber shall be of
mination of methoxyl and ethoxyl groups in organic com- borosilicate glass and conform to the requirements of Fig. 2.
pounds.
NOTE 2—Spent scrubbing solution may be removed from the scrubber
by inserting through the side arm of the scrubber a drawn-out medicine
NOTE 1—This specification was originally developed by the Committee
dropper or small rubber tube connected to a vacuum source.
on MicrochemicalApparatus, Division ofAnalytical Chemistry,American
NOTE3—Thescrubberisconstrictedtopreventscrubbingsolutionfrom
Chemical Society.
being sucked back into the reaction flask or carried over into the receiver.
1.2 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4. Delivery Tube
ization established in the Decision on Principles for the
4.1 The delivery tube shall be of borosilicate glass and
Development of International Standards, Guides and Recom-
conform to the requirements of Fig. 3.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Receivers
5.1 Two types of receivers are specified, as follows:
2. Reaction Flask
5.1.1 Receiver for Volumetric Analysis shall be of borosili-
2.1 The reaction flask shall be of borosilicate glass and shall
cate glass and conform to the requirements of Fig. 4.
conform to the requirements of Fig. 1.
5.1.2 Receiver for Gravimetric Analysis shall be of borosili-
cate 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
Laboratory Ware and Supplies.
6.1 alkoxyl; apparatus; groups; microdetermination
Current edition approved Sept. 1, 2022. Published September 2022. Originally
approvedin1964.Lastpreviousedi
...

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