ASTM E1154-89(2003)
(Specification)Standard Specification for Piston or Plunger Operated Volumetric Apparatus
Standard Specification for Piston or Plunger Operated Volumetric Apparatus
ABSTRACT
This specification covers piston or plunger operated volumetric apparatus (POVA), in particular, the requirements, operating conditions, and test methods. POVA covered by this specification are pipettes, dispensers (with and without valve), dilutors, and displacement burets (with and without valve). Single measurement, replicate delivery, durability, functional (such as tests for leakage, broken parts, existence of air bubbles, and contamination), volumetric, and gravimetric tests shall be performed and shall conform to the requirements specified.
SCOPE
1.1 This specification covers requirements, operating conditions, and test methods for piston or plunger operated volumetric apparatus (POVA).
1.2 This specification includes specifications applicable for all types of POVA or those given by the manufacturer. The following precautionary caveat pertains only to the test method portion, Section , of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: E 1154 – 89 (Reapproved 2003)
Standard Specification for
1
Piston or Plunger Operated Volumetric Apparatus
This standard is issued under the fixed designation E1154; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.3 disposable—those parts of an instrument that are
intended to be used once only and then discarded. Disposable
1.1 This specification covers requirements, operating con-
parts are generally intended for use in applications where
ditions, and test methods for piston or plunger operated
sample carryover is intolerable.
volumetric apparatus (POVA).
3.1.4 maximum error—the maximum difference between
1.2 This specification includes specifications applicable for
thenominalvolumeandanysingleindividualvolumeobtained
all types of POVA or those given by the manufacturer. The
by applying the test procedure specified in Section 13 of this
followingprecautionarycaveatpertainsonlytothetestmethod
ISO Standard.
portion, Section 13, of this specification: This standard does
3.1.5 maximum expectable error—with more than 95%
not purport to address all of the safety concerns, if any,
probability, the maximum expectable error is calculated as
associated with its use. It is the responsibility of the user of this
follows:
standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior
6~1E 1 12s! (1)
T
to use.
where:
2. Referenced Documents
E = inaccuracy of the mean, and
2 T
2.1 ISO Documents:
s = standard deviation from the repeatability test in
ISO3534 Statistics—Vocabulary and Symbols
Section 13.
ISO653 Long Solid-Stem Thermometers for Precision Use
3.1.6 nominal volume(s)—the stated volume(s) for which
ISO655 Long Enclosed-Scale Thermometers for Precision
performance is specified.
Use
3.1.7 unit of volume—themillilitreorthemicrolitre,thatare
ISO4787 Laboratory Glassware—Volumetric Glassware—
accepted substitutes for the cubic centimetre or cubic millime-
Methods for Testing and Use
tre.
3.1.7.1 Discussion—Itisrecommendedthatvolumesshould
3. Terminology
be specified in microlitres up to 999 µL, and in millilitres from
3.1 Definitions of Terms Specific to This Standard:
1 mL.
3
3.1.1 accuracy —the accuracy of an instrument is the
3.1.8 piston or plunger operated volumetric apparatus
closeness of agreement between the nominal volume and the
(POVA)—the volume of liquid to be measured with POVA is
mean volume, obtained by applying the test procedure speci-
defined by one or more strokes of one or more pistons or
fied in Section 13 of this specification. It is quantified by the
plungers. POVA may be operated manually or mechanically
inaccuracy of the mean.
(for example, electrically, pneumatically or by hydrostatic
3.1.2 dead volume—thedeadvolumeisthatpartofthetotal
pressure).
liquidvolume,heldintheoperationalpartofthedevice,which
3.1.8.1 Discussion—In the following text the word8 piston’
is not delivered.
means8 piston or plunger.’
3.1.2.1 Discussion—The dead volume should not be con-
3
3.1.9 precision —the closeness of agreement between the
fused with the dead space of an air displacement instrument.
individual volumes obtained by applying the test procedure
specified in this specification. It is quantified by the impreci-
sion.
1
This specification is under the jurisdiction of ASTM Committee E41 on
3.1.9.1 Discussion—Thetestprocedurespecifiedgivesonly
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.06 on
a measure of the repeatability (see ISO 3534) under controlled
Weighing Devices.
Current edition approved April 4, 1989. Published May 1989. Originally
conditions.
published as E1154-87. Last previous edition E1154-87.
3.1.10 reusable—thosepartsofaninstrumentthataremeant
2
Available from American National Standards Institute, 1430 Broadway, New
tobeusedmorethanonce.Asthereusabilityofsomepartscan
York, NY 10018.
3
These definitions apply only in the cases where the distributions are Gaussian. rarely be quantified, any institution or individual who reuses a
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E 1154 – 89 (2003)
reusable part must see to its safety and effectiveness. Reusable liquid interface (indirect action) or by actual contact with the
parts are generally intended for use in applications where piston (direct action), (see Fig. 3 and Fig. 4).
sample carryover is tolerable, or can be adequately prevented.
5. Performance Requirements
3.1.11 sample carryover—that portion of the sample
...
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