ASTM C1005-05

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Designation: C1005 – 05
Standard Specification for
Reference Masses and Devices for Determining Mass and
Volume for Use in the Physical Testing of Hydraulic
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Cements
This standard is issued under the fixed designation C1005; 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 3.1.1 accuracy, n—degree of conformity of the indication
of a device for determining mass to the true value of an applied
1.1 This specification covers the minimum requirements for
mass.
scales, balances, reference masses, and glass graduates used in
3.1.2 balance, n—a device for determining mass that com-
the physical testing of hydraulic cements.
pares a mass with standard masses.
1.2 Requirements for analytical reference masses and bal-
3.1.3 precision, n—reproducibility of the readings of a
ances are not included in this specification, but are to be found
device for determining mass when a given test mass is applied.
in Test Methods C114. The use of restrictive terminology,
3.1.4 range of mass determination, n—the range of indica-
classes, ranges, etc. has been intentionally avoided to allow the
tions of a device from the minimum test load plus any aids or
use of this specification by other standards-writing bodies with
containers on the load-receiving elements to the maximum test
similar requirements for reference masses and devices for
load with the same aids or containers, as specified by the
determining mass, if desired.
particular method of test being used.
1.3 These requirements are not sufficiently descriptive to be
3.1.5 readability, n—the smallest fraction of a division to
used as the sole specifications for the purchase of reference
which the index scale of a device for determining mass can be
masses or devices for determining mass without amplification.
read with ease either by estimation or by use of a vernier.
1.4 Values in SI units shall be obtained by measurement in
3.1.6 reference mass, n—a piece of material of known
SI units or by appropriate conversion, using the Rules for
specified mass for use in comparing or measuring the mass of
Conversion and Rounding given in IEEE/ASTM SI 10,of
other masses (See Note 1).
measurement made in other units.
3.1.6.1 Discussion—The definition of “reference mass” was
2. Referenced Documents
formerly incorrectly designated “weight;” weight is a force
2
(See IEEE/ASTM SI 10).
2.1 ASTM Standards:
3.1.7 scale, n—a device for determining mass having a
C114 Test Methods for Chemical Analysis of Hydraulic
load-receiving element and an index scale (possibly in combi-
Cement
nation with the use of internal masses or proportional masses),
E617 Specification for Laboratory Weights and Precision
almost always calibrated to indicate mass; generally of lesser
Mass Standards
accuracy than a balance.
IEEE/ASTM SI 10 Standard for Use of the International
3.1.8 sensitivity, n—the minimum change of applied mass
System of Units (SI): The Modern Metric System
requiredtoperceptiblymovetheindicatingelementofadevice
3. Terminology
for determining mass.
3.1.9 sensitivity requirement, n—the minimum change in
3.1 Definitions:
position of rest of the indicating element of a device for
determining mass in response to a specified change of mass
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This specification is under the jurisdiction of ASTM Committee C01 on load on the load-receiving element.
Cement and is the direct responsibility of Subcommittee C01.95 on Coordination of
3.1.10 test load, n—the mass to be determined in a single
Standards.
determination, exclusive of aids or containers, as specified in
Current edition approved July 1, 2005. Published August 2005. Originally
the test method being followed.
approved in 1983. Last previous edition approved in 2000 as C1005 – 00. DOI:
10.1520/C1005-05.
3.1.11 tolerance, n—precision and accuracy criteria for
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
reference masses or devices for determining mass.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
acceptance tolerance—the maximum permissible deviation
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. from correct indication for new or newly reconditioned or
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C1005 – 05
adjusted reference masses or devices for determining mass; 5. Requirements for Scales and Balances Requirements for
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equal to ⁄2 the maintenance tolerance. Scales and Balances
adjustment tolerance—acceptance toleran
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