ASTM D1864-89(2002)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D1864–89 (Reapproved 2002)
Standard Test Method for
Moisture in Mineral Aggregate Used on Built-Up Roofs
This standard is issued under the fixed designation D1864; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 6. Sampling
1.1 This test method covers the determination of moisture 6.1 Sample aggregates received in bulk in accordance with
in mineral aggregate for use on built-up roofs. Practice D75.
1.2 The values stated in SI units are to be regarded as the 6.2 For aggregates received in bags or small containers,
standard. The values given in parentheses are for information select a number of bags or small containers at random,
only. equivalenttothecuberootofthetotalnumberintheshipment.
1.3 This standard does not purport to address all of the
7. Procedure
safety concerns, if any, associated with its use. It is the
7.1 Transfer to a tared dish 500 g (1 lb) 6 1% of the
responsibility of the user of this standard to establish appro-
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priate safety and health practices and determine the applica- aggregate,weighedtothenearest2 30.1g(10 -lb).Placein
an oven at 110°C (230°F) for 4 h. Cool in a desiccator. Weigh
bility of regulatory limitations prior to use.
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to the nearest 2 30.1 g (10 -lb). Repeat the drying for 1-h
2. Referenced Documents
periods until constant mass is obtained.
2.1 ASTM Standards:
8. Calculation
D75 Practice for Sampling Aggregates
8.1 Calculate the percentage of moisture as follows:
D1863 Specification for Mineral Aggregate Used on
Built-Up Roofs
Moisture,% 5[~B 2 C!/~C 2 A!# 3100 (1)
3. Summary of Test Method
where:
A = mass of container,
3.1 The aggregate is dried to constant mass in a 110°C
B = original mass of sample and container, and
(230°F) oven. The mass percent moisture is calculated as the
C = mass of sample and container after drying.
loss in mass based on the mass of the oven dry aggregate.
9. Precision and Bias
4. Significance and Use
9.1 The following data should be used for judging the
4.1 This test method measures the moisture in mineral
acceptability of results (95% probability) on samples from the
aggregate required by Specification D1863.
same lot from the same supplier:
5. Apparatus
9.1.1 Repeatability—Duplicate results by the same operator
should not be considered
...