ASTM E1189-00(2022)
(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.
1.3 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
- Technical Committee
- E41 - Laboratory Apparatus
- Drafting Committee
- E41.01 - Laboratory Ware and Supplies
Relations
- Effective Date
- 01-Feb-2024
- Effective Date
- 01-Feb-2024
- Effective Date
- 01-Jul-2019
- Effective Date
- 01-Jan-2019
- Refers
ASTM E675-02(2019) - Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers - Effective Date
- 01-Jan-2019
- Effective Date
- 01-Jan-2018
- Effective Date
- 01-Jan-2018
- Effective Date
- 01-Sep-2016
- Effective Date
- 01-Nov-2013
- Refers
ASTM E675-02(2012) - Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers - Effective Date
- 01-Nov-2012
- Effective Date
- 01-Nov-2012
- Effective Date
- 01-Dec-2011
- Effective Date
- 01-Dec-2011
- Effective Date
- 01-Dec-2011
- Effective Date
- 01-Sep-2010
Overview
ASTM E1189-00(2022) is the standard specification issued by ASTM International for micro-burets (Koch style) designed for laboratory use. This specification ensures consistency, accuracy, and durability in the production and use of Koch-type glass micro-burets, which are essential tools for precise volumetric measurements in various analytical procedures. The standard outlines material requirements, dimensional tolerances, and construction details for two specific styles of micro-burets, enhancing their reliability and performance across laboratory settings.
Key Topics
- Material Requirements: Micro-burets must be manufactured from Type I, Class A or B glass, ensuring chemical resistance and mechanical strength suitable for laboratory applications.
- Stopcocks and Joints: All burets must include permanently attached stopcocks, either with glass plugs (per ASTM E675) or PTFE plugs (per ASTM E911), for leak-proof operation. Joints and stoppers must meet additional ASTM specifications for interchangeability and integrity.
- Design Styles:
- Style I: Features a detachable tip (7/25 joint or SJ 12/5 joint) with the reservoir and graduated sections secured together to prevent breakage.
- Style II: Incorporates a detachable noble metal tip (platinum or platinum alloys) sealed to glass, with a separate reservoir and graduated section joined by a spherical ground joint.
- Graduation and Calibration: The graduated section of the burets meets the scale and tolerance requirements of ASTM E694, providing precise measurement capabilities.
- Performance Parameters: Specifications include strict values for capacity, scale length, diameter, outflow time, and tolerance, supporting high accuracy in laboratory titrations and measurements.
- Compliance and Testing: Sampling and testing protocols refer to ASTM E1157, ensuring product conformity to specified standards.
Applications
ASTM E1189-00(2022) compliant micro-burets play a critical role in settings where accuracy and repeatability are paramount:
- Chemical and Clinical Laboratories: For performing titrations, sample preparation, and reagent delivery.
- Educational Institutions: In chemistry and biology teaching labs requiring reliable volumetric apparatus.
- Pharmaceutical and Environmental Testing: Where precise quantification of analytes is essential.
- Research and Development: Supporting advanced experimental procedures that demand consistent, traceable measurements.
By adhering to this standard, laboratories can ensure the use of quality-assured glassware, increasing confidence in analytical results and supporting regulatory compliance.
Related Standards
The specification references several important ASTM standards that together create a robust quality framework for laboratory glassware:
- ASTM E438 - Specification for Glasses in Laboratory Apparatus
- ASTM E675, E676, E677 - Specifications for Interchangeable Taper-Ground and Spherical Joints/Stopcocks
- ASTM E694 - Specification for Laboratory Glass Volumetric Apparatus
- ASTM E911 - Specification for Glass Stopcocks with Polytetrafluoroethylene (PTFE) Plugs
- ASTM E920, E921 - Specifications relating to packaging of laboratory apparatus
- ASTM E1133 - Practice for performance testing of packaged laboratory apparatus
- ASTM E1157 - Specification for sampling and testing of reusable laboratory glassware
Practical Value
Utilizing micro-burets conforming to ASTM E1189-00(2022) assures laboratories of:
- Consistency in volumetric measurements
- Interchangeability and compatibility with other laboratory equipment
- Reduced risk of contamination and breakage
- Compliance with international standardization principles, supporting quality assurance and traceability
Keywords: micro-buret, Koch style, ASTM E1189, laboratory glassware, volumetric apparatus, chemical analysis, standard specification
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Frequently Asked Questions
ASTM E1189-00(2022) is a technical specification published by ASTM International. Its full title is "Standard Specification for Micro-Burets (Koch Style)". This standard covers: 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. 1.3 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.
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. 1.3 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.
ASTM E1189-00(2022) is classified under the following ICS (International Classification for Standards) categories: 71.040.20 - Laboratory ware and related apparatus. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM E1189-00(2022) has the following relationships with other standards: It is inter standard links to ASTM E438-92(2024), ASTM E694-18(2024), ASTM E920-97(2019), ASTM E676-02(2019), ASTM E675-02(2019), ASTM E438-92(2018), ASTM E694-18, ASTM E677-94(2016), ASTM E920-97(2013), ASTM E675-02(2012), ASTM E676-02(2012), ASTM E1157-87(2018)e1, ASTM E438-92(2011), ASTM E1157-87(2011), ASTM E1133-86(2010). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM E1189-00(2022) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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: E1189 −00 (Reapproved 2022)
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 Laboratory Glassware
1.1 This specification covers two styles of glass micro-
3. General Requirements
burets of the “Koch” type for general laboratory use.
3.1 Material—Burets shall be made from Type I, ClassAor
1.2 The values stated in SI units are to be regarded as
B glass as specified in Specification E438.
standard. No other units of measurement are included in this
3.2 Stopcocks—Bothburetsshallhavepermanentlyattached
standard.
stopcocks with either glass plugs conforming to Specification
1.3 This international standard was developed in accor-
E675 or PTFE plugs conforming to Specification E911.
dance with internationally recognized principles on standard-
3.3 Joints and Stoppers—All joints and stoppers shall com-
ization established in the Decision on Principles for the
ply with the requirements of Specifications E675, E676,or
Development of International Standards, Guides and Recom-
E677.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3.4 Graduation—The graduated section shall be in compli-
ance with Pattern I of Specification E694.
2. Referenced Documents
4. Design
2.1 ASTM Standards:
E438 Specification for Glasses in Laboratory Apparatus
4.1 Style I:
E675 Specification for Interchangeable Taper-Ground Stop-
4.1.1 Style I shall be in compliance with Table 1 and Fig. 1.
cocks And Stoppers
4.1.2 This style shall be equipped with a detachable tip with
E676 Specification for Interchangeable Taper-Ground Joints
either a 7/25 joint or a SJ 12/5 joint.
E677 Specification for Interchangeable Spherical Ground
4.1.3 Reservoir and graduated section shall be secured to
Joints
each other to cushion against breakage during transit and in
E694 Specification for Laboratory Glass Volumetric Appa-
use. Typical arrangements are a cork spacer and tape or a glass
ratus
bridge.
E911 Specification for Glass Stopcocks with Polytetrafluo-
4.2 Style II:
roethylene (PTFE) Plugs
4.2.1 Style II shall be in compliance with Table 2 and Fig.
E920 Specification for Commercially Packaged Laboratory
2.
Apparatus
4.2.2 This style shall be equipped with a detachable tip of
E921 Specification for Export Packaged Laboratory Appa-
noble metals (platinum or platinum alloys) sealed to glass in a
ratus
form commonly designated as Shohl-Type.
E1133 Practice for Performance Testing of Packaged Labo-
4.2.3 Reservoir section shall be separate from graduated
ratory Apparatus for United States Government Procure-
section with connection made by a SJ 12/5 spherical ground
ments
joint complying with Specification E677.
E1157 Specification for Sampling and Testing of Reusable
5. Sampling and Testing
5.1 See Specification E1157.
This sp
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