ASTM D1864-89(1999)e1

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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e1
Designation: D 1864 – 89 (Reapproved 1999)
Standard Test Method for
Moisture in Mineral Aggregate Used on Built-Up Roofs
This standard is issued under the fixed designation D 1864; 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.
This standard has been approved for use by agencies of the Department of Defense.
e NOTE—Editorially switched from English dominant to SI dominant.
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 D 75.
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. equivalent to the cube root of the total number in the shipment.
1.3 This standard does not purport to address all of the
7. Procedure
safety problems, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 7.1 Transfer to a tared dish 500 g (1 lb) 6 1 % of the
−4
aggregate, weighed to the nearest 2 3 0.1 g (10 -lb). Place in
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. an oven at 110°C (230°F) for 4 h. Cool in a desiccator. Weigh
−4
to the nearest 2 3 0.1 g (10 -lb). Repeat the drying for 1-h
2. Referenced Documents
periods until constant mass is obtained.
2.1 ASTM Standards:
2 8. Calculation
D 75 Practice for Sampling Aggregates
D 1863 Specification for Mineral Aggregate Used on 8.1 Calculate the percentage of moisture as follows:
Built-up Roofs
Moisture, % 5 @~B 2 C!/~C 2 A!# 3 100 (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 D 1863.
same lot from the same supplier:
5. Apparatus
9.1.1 Repeatability—Duplicate results by the same operator
should not be considered suspect unless they differ by more
5.1 Balanc
...