ASTM E1043-00(2010)

Standard Specification for Pipets, Milk and Cream Examination

ABSTRACT
This specification covers miscellaneous pipets suitable for use in milk and cream testing procedures. Pipets shall be made of high quality apparatus glass. Pipets shall be of the following types: Type 1—breed and brew pipet; Type II—milk pipet, Babcock; Type II A—milk pipet, Babcock variation; Type II B—milk pipet, Babcock variation; Type III—cream pipet; Type III A—cream pipet, additional size; Type IV—milk diluting pipet; Type IV A—milk diluting pipet, additional sizes; Type V—milk diluting pipet; Type VI—milk pipet, Gerber. Materials shall be tested and the individual grades shall conform to specified values of style and design, markings, and maximum residual thermal stress.
SCOPE
1.1 This specification covers miscellaneous pipets suitable for use in milk and cream testing procedures.
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: 30-Jun-2010
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

Relations

• Replaces: ASTM E1043-00(2005) - Standard Specification for Pipets, Milk and Cream Examination
• Effective Date: 01-Jul-2010

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1043 −00(Reapproved 2010)
Standard Specification for
Pipets, Milk and Cream Examination
This standard is issued under the fixed designation E1043; 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 3.1.5 Type V—Milk diluting pipet.
3.1.6 Type VI—Milk pipet, Gerber.
1.1 This specification covers miscellaneous pipets suitable
for use in milk and cream testing procedures.
4. Material and Annealing
1.2 The values stated in SI units are to be regarded as
4.1 Pipets shall be made of high quality apparatus glass,
standard. No other units of measurement are included in this
suitable in all respects for the purpose intended.
standard.
4.2 Maximum residual thermal stress shall conform to
2. Referenced Documents
Specification E671.
2.1 ASTM Standards:
5. Style and Design
E542 Practice for Calibration of Laboratory Volumetric
5.1 Type I, Breed and Brew Pipet (see Note 1)—Style and
Apparatus
design of capillary pipets shall be in strict conformance with
E671 Specification for Maximum Permissible Thermal Re-
Fig. 1, Type I. Pipets shall be without bulb, and shall be
sidual Stress in Annealed Glass Laboratory Apparatus
suitable for use in the direct count method of milk examination
E920 Specification for Commercially Packaged Laboratory
in conformance with the test procedures described in the 14th
Apparatus
edition of Standard Methods for the Examination of Dairy
E921 Specification for Export Packaged Laboratory Appa-
Products for pipet and slide method. The pipet shall be
ratus
calibrated to deliver, when blown out, 0.01 6 0.001 cm of
E1133 Practice for Performance Testing of Packaged Labo-
milk having a specific gravity of 1.032 at 20°C. Tips shall be
ratory Apparatus for United States Government Procure-
blunt, ground, or polished to discharge milk cleanly.
ments
E1157 Specification for Sampling and Testing of Reusable
NOTE 1—Type I pipets (5.1), before being used in New York, must be
Laboratory Glassware
submitted to the Director of the State Ford Laboratory, Albany, NY, for
examination.
3. Classification
5.2 TypeII,MilkPipet—MilkpipetsshallbeBabcockpipets
3.1 Pipets covered by this specification shall be of the
suitablefortestingthebutterfatcontentofmilk.Theendsshall
following types:
be at right angles to the axis. The bulb shall be symmetrical.
3.1.1 Type 1—Breed and brew pipet.
The tip shall taper slightly over the terminal 5 to 20 cm , but
3.1.2 Type II—Milk pipet, Babcock.
the inside diameter at the end must be able to deliver within 5
3.1.2.1 Type II A—Milk pipet, Babcock variation.
to 8 s when filled with water. The end shall be fire-polished.
3.1.2.2 Type II B—Milk pipet, Babcock variation.
The pipet shall be calibrated to contain 17.6 6 0.05 cm of
3.1.3 Type III—Cream pipet.
water at 20°C, when tested in accordance with Practice E542.
3.1.3.1 Type III A—Cream pipet, additional size.
The pipet shall be marked to indicate that it contains 17.6 cm
3.1.4 Type IV—Milk diluting pipet.
at 20°C. The pipet shall be in strict conformance with Fig. 1,
3.1.4.1 Type IV A—Milk diluting pipet, additional sizes.
Type II.
5.2.1 Type II A, Milk Pipet—Same as Type II (5.2) except
marked “Sealed” for use in states requiring this special
This specification is under the jurisdiction of ASTM Committee E41 on
marking. (Alabama, Georgia, Mississippi, New Mexico, North
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
Apparatus.
Dakota, Oregon, Tennessee, Washington, and Wisconsin.)
Current edition approved July 1, 2010. Published July 2010. Originally approved
5.2.2 TypeIIB,MilkPipet—SimilartoTypeII,however,the
in 1985. Last previous edition approved in 2005 as E1043 – 00 (2005). DOI:
pipet shall be calibrated to deliver 17.6 6 0.05 cm of water at
10.1520/E1043-00R10.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on American Public Health Assoc., Standard Methods for the Examination of
the ASTM website. Dairy Products, 14th edition.
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E1043−00 (2010)
FIG. 1 Pipets, Milk and Cream Examination
20°C, when tested in accordance with Practice E542.The pipet 0.5, 1.0, and 1.1 cm . They shall be calibrated to contain 0.54,
shall be marked to indicate that it delivers 17.6 cm at 20°C.
1.075, and 1.180 cm of distilled water at 20°C at the 0.5, 1.0,
The pipet shall be in strict conformance with Fig. 1, Type II.
and 1.1 cm graduations, respectively. Tolerance shall be
(For use in the state of Nebraska.)
60.025 cm at any point on the pipet. When used with whole
milk, the s
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