ASTM C1005-00

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Designation: C 1005 – 00
Standard Specification for
Reference Masses and Devices for Determining Mass and
Volume for Use in the Physical Testing of Hydraulic
Cements
This standard is issued under the fixed designation C 1005; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 balance, n—a device for determining mass that com-
pares a mass with standard masses.
1.1 This specification covers the minimum requirements for
3.1.3 precision, n—reproducibility of the readings of a
scales, balances, reference masses, and glass graduates used in
device for determining mass when a given test mass is applied.
the physical testing of hydraulic cements.
3.1.4 range of mass determination, n—the range of indica-
1.2 Requirements for analytical reference masses and bal-
tions of a device from the minimum test load plus any aids or
ances are not included in this specification, but are to be found
containers on the load-receiving elements to the maximum test
in Test Methods C 114. The use of restrictive terminology,
load with the same aids or containers, as specified by the
classes, ranges, etc. has been intentionally avoided to allow the
particular method of test being used.
use of this specification by other standards-writing bodies with
3.1.5 readability, n—the smallest fraction of a division to
similar requirements for reference masses and devices for
which the index scale of a device for determining mass can be
determining mass, if desired.
read with ease either by estimation or by use of a vernier.
1.3 These requirements are not sufficiently descriptive to be
3.1.6 reference mass, n—a piece of material of known
used as the sole specifications for the purchase of reference
specified mass for use in comparing or measuring the mass of
masses or devices for determining mass without amplification.
other masses (see Note 1).
1.4 Values in SI units shall be obtained by measurement in
3.1.6.1 Discussion—The definition of “reference mass” was
SI units or by appropriate conversion, using the Rules for
formerly incorrectly designated “weight;” weight is a force
Conversion and Rounding given in Standard IEEE/ASTM
(see IEEE/ASTM SI–10).
SI–10, of measurement made in other units.
3.1.7 scale, n—a device for determining mass having a
2. Referenced Documents
load-receiving element and an index scale (possibly in combi-
nation with the use of internal masses or proportional masses),
2.1 ASTM Standards:
almost always calibrated to indicate mass; generally of lesser
C 114 Test Methods for Chemical Analysis of Hydraulic
accuracy than a balance.
Cement
3.1.8 sensitivity, n—the minimum change of applied mass
E 617 Specification for Laboratory Weights and Precision
required to perceptibly move the indicating element of a device
Mass Standards
for determining mass.
IEEE/ASTM SI–10 Standard for Use of the International
3.1.9 sensitivity requirement, n—the minimum change in
System of Units (SI): The Modern Metric System
position of rest of the indicating element of a device for
3. Terminology
determining mass in response to a specified change of mass
load on the load-receiving element.
3.1 Definitions:
3.1.10 test load, n—the mass to be determined in a single
3.1.1 accuracy, n—degree of conformity of the indication
determination, exclusive of aids or containers, as specified in
of a device for determining mass to the true value of an applied
the test method being followed.
mass.
3.1.11 tolerance, n—precision and accuracy criteria for
reference masses or devices for determining mass.
1 acceptance tolerance—the maximum permissible deviation
This specification is under the jurisdiction ofASTM Committee C-1 on Cement
from correct indication for new or newly reconditioned or
and is the direct responsibility of Subcommittee C01.95 on Coordination of
Standards.
adjusted reference masses or devices for determining mass;
Current edition approved July 10, 2000. Published September 2000. Originally
equal to ⁄2 the maintenance tolerance.
published as C 1005 – 83. Last previous edition C 1005 – 99.
2 adjustment tolerance—acceptance tolerance.
Annual Book of ASTM Standards, Vol 04.01.
Annual Book of ASTM Standards, Vol 14.04. maintenance tolerance—maximum permissible deviation
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C 1005
with higher capacity weighing devices. There are exceptions to this
from correct indication for reference masses and devices for
generality as, for example, the high quality substitution balances.
determining mass in service.
3.1.12 total load, n—the sum of the masses of materials and
5.2 Precision and Accuracy—The maintenance tolerance
aids or containers applied to the load-receiving element at any
for a device for mass determination shall be no greater than
one time.
0.05 % of the test load throughout the range. The device for
mass determination shall be capable of reproducing readings
4. Reference Masses
with the same test mass at least to within the acceptance
4.1 Reference masses for use in the methods of physical
tolerance.
testing of hydraulic cement and related and similar materials
...