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ASTM

ASTM E1189-00(2010)

(Specification)

Standard Specification for Micro-Burets (Koch Style)

Standard Specification for Micro-Burets (Koch Style)

ABSTRACT
This specification covers two styles of "Koch" type glass microburets for general laboratory use. Burets shall be made from Type I, Class A or B glass. Both burets shall have permanently attached stopcocks with either glass plugs, or PTFE plugs. Materials shall be tested and the individual grades shall conform to design requirements with the specified values of capacity, scale length, diameter, outflow time, and tolerance.
SCOPE
1.1 This specification covers two styles of glass micro-burets of the “Koch” type for general laboratory use.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

General Information

Status
Historical
Publication Date
31-Aug-2010
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

Relations

Replaces
ASTM E1189-00(2005) - Standard Specification for Micro-Burets (Koch Style)
Effective Date
01-Sep-2010

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ASTM E1189-00(2010) - Standard Specification for Micro-Burets (Koch Style)ASTM E1189-00(2010) - Standard Specification for Micro-Burets (Koch Style)
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ASTM E1189-00(2010) - Standard Specification for Micro-Burets (Koch Style)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1189 −00(Reapproved 2010)
Standard Specification for
Micro-Burets (Koch Style)
This standard is issued under the fixed designation E1189; 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. General Requirements
3.1 Material—Burets shall be made from Type I, ClassAor
1.1 This specification covers two styles of glass micro-
B glass as specified in Specification E438.
burets of the “Koch” type for general laboratory use.
3.2 Stopcocks—Bothburetsshallhavepermanentlyattached
1.2 The values stated in SI units are to be regarded as
stopcocks with either glass plugs conforming to Specification
standard. No other units of measurement are included in this
E675 or PTFE plugs conforming to Specification E911.
standard.
3.3 Joints and Stoppers—All joints and stoppers shall com-
2. Referenced Documents ply with the requirements of Specifications E675, E676,or
E677.
2.1 ASTM Standards:
3.4 Graduation—The graduated section shall be in compli-
E438 Specification for Glasses in Laboratory Apparatus
ance with Pattern I of Specification E694.
E675 Specification for Interchangeable Taper-Ground Stop-
cocks And Stoppers
4. Design
E676 Specification for Interchangeable Taper-Ground Joints
E677 Specification for Interchangeable Spherical Ground
4.1 Style I:
Joints
4.1.1 Style I shall be in compliance with Table 1 and Fig. 1.
E694 Specification for Laboratory Glass Volumetric Appa-
4.1.2 This style shall be equipped with a detachable tip with
ratus
either a 7/25 joint or a SJ 12/5 joint.
E911 Specification for Glass Stopcocks with Polytetrafluo-
4.1.3 Reservoir and graduated section shall be secured to
roethylene (PTFE) Plugs
each other to cushion against breakage during transit and in
E920 Specification for Commercially Packaged Laboratory
use. Typical arrangements are a cork spacer and tape or a glass
Apparatus
bridge.
E921 Specification for Export Packaged Laboratory Appa-
4.2 Style II:
ratus
4.2.1 Style II shall be in compliance with Table 2 and Fig.
E1133 Practice for Performance Testing of Packaged Labo-
2.
ratory Apparatus for United States Government Procure-
4.2.2 This style shall be equipped with a detachable tip of
ments
noble metals (platinum or platinum alloys) sealed to glass in a
E1157 Specification for Sampling and Testing of Reusable
form commonly designated as Shohl-Type.
Laboratory Glassware
4.2.3 Reservoir section shall be separate from graduated
section with connection made by a SJ 12/5 spherical ground
joint complying with Specification E677.
This specification is under the jurisdiction of Committee E41 on Laboratory
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
5. Sampling and Testing
Apparatus.
Current edition approved Sept. 1, 2010. Published September 2010. Originally
5.1 See Specification E1157.
approved in 1987. Last previous edition appro
...

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