ASTM C899-79(2002)

Standard Practice for Use of Metric Units of Measure for Reporting Properties of Refractory Materials (COMMITTEE C-8 SUPPLEMENT TO E 380)

SCOPE
1.1 This practice presents the units to be employed for reporting the properties of refractories, such as density, crushing stress, modulus of rupture, tensile stress, thermal conductivity, and permeability.
1.2 For convenience, a table of conversion factors between inch-pound units and SI units is included.

General Information

• Status: Historical
• Publication Date: 21-Jun-1979
• ICS: 01.060 - Quantities and units
• ICS: 81.080 - Refractories
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.92 - The Joseph E. Kopanda Subcommittee for Editorial, Terminology and Classification

Relations

• Replaces: ASTM C899-79(1997) - Standard Practice for Use of Metric Units of Measure for Reporting Properties of Refractory Materials
• Effective Date: 22-Jun-1979
• Replaced By: ASTM C899-79(2007) - Standard Practice for Use of Metric Units of Measure for Reporting Properties of Refractory Materials (COMMITTEE C-8 SUPPLEMENT TO E 380)
• Effective Date: 01-Oct-2007

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C 899–79 (Reapproved 2002)
Standard Practice for
Use of Metric Units of Measure for Reporting Properties of
Refractory Materials
(COMMITTEE C-8 SUPPLEMENT TO E380)
This standard is issued under the fixed designation C 899; 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
Multiplication
Factor Prefix Symbol
1.1 This practice presents the units to be employed for
reporting the properties of refractories, such as density, crush-
10 giga G
10 mega M
ing stress, modulus of rupture, tensile stress, thermal conduc-
10 kilo k
tivity, and permeability. 2 A
10 hecto h
1 A
1.2 For convenience, a table of conversion factors between
10 deka da
−1 A
10 deci d
inch-pound units and SI units is included.
−2 A
10 centi c
−3
10 milli m
2. Referenced Documents
−6
10 micro µ
−9
10 nano n
2.1 ASTM Standards:
A
To be avoided where practical.
E 380 Practice for Use of the International System of Units
3.3 The conversion factors, which have been selected for
(SI) (the Modernized Metric System)
their general utility in the refractories industry, have been taken
2.2 ISO Standard:
from Standard E 380, where possible. For uniformity, they
ISO 1000 SI Units and Recommendations for the Use of
3 have been presented to four decimal places. In use, the
Their Multiples and of Certain Other Units
converted values should be rounded to the same number of
significant figures as in the original value.
3. Significance and Use
3.1 This practice is provided to facilitate comparison of
4. Standard Units
physical and mechanical properties of refractory materials by
4.1 Density—grams per cubic centimetre (g/cm ).
establishing uniform presentation of data.
4.2 Energy or work— joules (J) or megajoules (MJ).
3.2 Units have been chosen, where possible, to result in
4.3 Mass—grams (g), kilograms (kg), or megagrams (Mg).
numbers of magnitude familiar in the refractories industry, that
3 3 4.4 Permeabilityiscurrentlyexpressedindarcys.Onedarcy
is, g/cm rather than the SI preferred unit kg/m.Itis
is a flow of 1.00 cm /s of a fluid of 1 centipoise (cP) viscosity
recommended that SI prefixes be selected for use with the units
through a 1-cm cube of the material being measured under a
such that the resulting numerical values lie between 0.1 and
pressure differential of 1 atmosphere.Thus, a darcy is not an SI
1000. For most properties, the
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