ASTM D1102-84(2013)

Standard Test Method for Ash in Wood

SIGNIFICANCE AND USE
2.1 The ash content is an approximate measure of the mineral content and other inorganic matter in wood.
SCOPE
1.1 This test method covers the determination of ash, expressed as the percentage of residue remaining after dry oxidation (oxidation at 580 to 600°C), of wood or wood products.  
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Jul-2013
• ICS: 79.040 - Wood, sawlogs and sawn timber
• Technical Committee: D07 - Wood
• Drafting Committee: D07.01 - Fundamental Test Methods and Properties

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1102 − 84 (Reapproved 2013) Modification of
Technical Association of Pulp and Paper Industry
Standard Method T 211 OM-80
Standard Test Method for
1
Ash in Wood
This standard is issued under the fixed designation D1102; 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 5. Procedure
5.1 Ignite the empty crucible and cover over a burner or in
1.1 This test method covers the determination of ash,
the muffle at 600°C, cool in a desiccator, and weigh to the
expressed as the percentage of residue remaining after dry
nearest 0.1 mg. Place the 2-g test specimen in the crucible,
oxidation (oxidation at 580 to 600°C), of wood or wood
determine the weight of crucible plus specimen, and place in
products.
the drying oven at 100 to 105°C with the crucible cover
1.2 This standard does not purport to address all of the
removed. After 1 h, replace the cover on the crucible, cool in
safety concerns, if any, associated with its use. It is the
a desiccator, and weigh. Repeat the drying and weighing until
responsibility of the user of this standard to establish appro-
the weight is constant to within 0.1 mg. During the cooling and
priate safety and health practices and determine the applica-
weighing periods, keep the crucible covered to prevent absorp-
bility of regulatory limitations prior to use.
tion of moisture from the air. Record the weight (crucible plus
specimen minus weight of crucible) as the weight of the
2. Significance and Use
oven-dry test specimen.
2.1 The ash content is an approximate measure of the
5.2 Place the crucible and contents, with the cover removed,
mineral content and other inorganic matter in wood.
in the muffle furnace and ignite until all the carbon is
eliminated.Heatslowlyatthestarttoavoidflamingandprotect
3. Apparatus
the crucible from strong drafts at all times to avoid mechanical
loss of test specimen. The recommended temperature of final
3.1 Crucibles, with tightly fitting lids, having a capacity of
ignition is 580 to 600°C. Avoid heating above this maximum.
30 mLor more, shall be used. Platinum crucibles are preferred,
but silica or porcelain crucibles may be used.
5.3 Remove the crucible with its contents to a desiccator,
replace the cover loosely, cool, and weigh accurately. Repeat
3.2 Muffle Furnace—An electric furnace is recommended
the heating for 30-min periods until the weight after cooling is
for igniting the wood sample. A furnace fitted with an indicat-
constant to within 0.2 mg.
ing pyrometer, so that the desired temperature can be
maintained, is preferable.
6. Calculations and Report
3.3 Analytical Balance, sensitive to 0.1 mg.
6.1 Cal
...