ASTM E732-80(2006)

Standard Specification for Disposable Pasteur-Type Pipet

ABSTRACT
This specification covers the design and dimensional requirements for four types (Types I, II, III, and IV) of disposable bacteriological (Pasteur-type) nonvolumetric glass pipets suitable for replicate dispensing of drops of solutions and suspensions for laboratory purposes. The pipets shall be made of good quality, clear glass of either Type I, Class A or B (borosilicate), or Type II (soda lime). They shall be of a one-piece glass construction and each type shall correspondingly meet the requirements for overall length, body length, body outside diameter, body wall thickness, top-to-constriction distance, and tip inside diameter.
SCOPE
1.1 This specification covers requirements for four types of glass disposable bacteriological (Pasteur type) nonvolumetric pipets suitable for replicate dispensing of drops of solutions and suspensions for laboratory purposes.

General Information

• Status: Historical
• Publication Date: 31-Oct-2006
• ICS: 11.100 - Laboratory medicine
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

Relations

• Replaces: ASTM E732-80(2001)e1 - Standard Specification for Disposable Pasteur-Type Pipet
• Effective Date: 01-Nov-2006
• Replaced By: ASTM E732-80(2011) - Standard Specification for Disposable Pasteur-Type Pipet
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E732 – 80 (Reapproved 2006)
Standard Specification for
Disposable Pasteur-Type Pipet
This standard is issued under the fixed designation E732; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 5. Workmanship, Finish, and Appearance
1.1 This specification covers requirements for four types of 5.1 The pipets shall be free of obstructions, visible defects,
glass disposable bacteriological (Pasteur type) nonvolumetric irregularities, striae, bubbles, and other defects that detract
pipets suitable for replicate dispensing of drops of solutions from appearance and impair their serviceability.
and suspensions for laboratory purposes. 5.2 The pipets shall be visibly clean and ready for use; free
of grease, dirt, grit, oil, or oily type substances readibly
2. Referenced Documents
detectable to the naked eye under normal room lighting.
2.1 ASTM Standards: 5.3 Pipets shall be straight and concentric to the extent that
E438 Specification for Glasses in Laboratory Apparatus
when rolled on a plane surface the tip of the pipet shall not
touch the surface.
3. Terminology
5.4 Pipets shall be of sufficient strength and uniformity of
3.1 Definition of Term Specific to This Standard:
wall thickness to withstand normal usage and transporation.
3.1.1 disposable pipets—in accordance with this specifica-
6. Requirements
tion and the expected product performance expressed in this
standard, those pipets which are to be used one time only. Any 6.1 Material—The pipets shall be made of good quality,
institution or individual who reuses a disposable pipet must
clear glass conforming to the requirements of Type I, Class A
bear full responsibility for its safety and effectiveness. or B (borosilicate), or Type II (soda lime), of Specification
E438.
4. Classification
6.2 Design and Dimensions—The pipets shall be of a
4.1 Pipets covered by this specification shall be of the one-piece glass construction and meet the dimensions and
following types according to size:
tolerance outlined in Table 1. The pipets may be fabricated
Type I—5 ⁄4 in. (approximately 150 mm) long
with a constriction to allow for cotton-plugging, which shall be
Type II—9 in. (approximately 230 mm) long
considered an optional feature at the discretion of the manu-
Type III—Large-tip pipet 5 ⁄4 in. (approximately 150 mm)
facturer. The top of the pipet shall be fire-polished, free of
long
sharp edges, and be finished approximately 90 deg to the axis
Type IV—Jumbo pipet 5
...