ASTM A610-79(2000)
(Test Method)Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
SCOPE
1.1 These test methods include procedures for the sampling and testing of the various ferroalloys for sizing, either before or after shipment from the plants of the manufacturers.
1.2 They are designed to give results representative of each lot that will be comparable with the manufacturer's certified analysis for the same lot.
1.3 The purchaser may use any sampling procedure he desires, but the results obtained on such samples shall not be a basis for complaint or rejection, unless the procedure followed is of an accuracy equivalent to that prescribed in these test methods.
1.4 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents of inch-pound units may be approximate.
1.5 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.
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Designation: A 610 – 79 (Reapproved 2000)
Standard Test Methods for
Sampling and Testing Ferroalloys for Determination of Size
This standard is issued under the fixed designation A 610; 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 ladleful or each binful. The division of samples should be in
accordance with Practices E 32.
1.1 These test methods include procedures for the sampling
and testing of the various ferroalloys for sizing, either before or
4. Sampling for Size Analysis
after shipment from the plants of the manufacturers.
4.1 Lumps—Conformance of lump material to sizing stan-
1.2 They are designed to give results representative of each
dards normally shall be judged by visual examination. The
lot that will be comparable with the manufacturer’s certified
inspection judgment shall be made on an increment selected at
analysis for the same lot.
random. Unless otherwise required, the increment shall be the
1.3 The purchaser may use any sampling procedure he
contents of a unit container of 2000 lb (910 kg) minimum
desires, but the results obtained on such samples shall not be a
quantity. When more precise data are required for checking on
basis for complaint or rejection, unless the procedure followed
the visual examination, a sizing test shall be made on material
is of an accuracy equivalent to that prescribed in these test
from a unit container (usually 2000 to 3000 lb (910 to 1360 kg)
methods.
of alloy) selected at random.
1.4 The values stated in inch-pound units are to be regarded
4.2 Crushed or Plates—Sampling for conformance of
as the standard. The SI equivalents of inch-pound units may be
crushed or plates material to size requirements shall be in
approximate.
accordance with Practices E 32 or by alternative methods
1.5 This standard does not purport to address all of the
which are demonstrated to yield equivalent results. A represen-
safety concerns, if any, associated with its use. It is the
tative portion of the lot sample (before any reduction in particle
responsibility of the user of this standard to establish appro-
size) shall be obtained for screen testing. If necessary, the
priate safety and health practices and determine the applica-
percentage of sample taken shall be increased to provide
bility of regulatory limitations prior to use.
sufficient sample in the half reserved for screen testing.
2. Referenced Documents 4.2.1 Table 1 lists the amount of material that is to be used
for size analysis.
2.1 ASTM Standards:
4.2.2 If the top size of the material is 2 in. (50.8 mm) or
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
smaller, the portion for screen test shall be taken from the lot
poses
sample by riffling; in larger sizes, by mixing and quartering.
E 32 Practices for Sampling Ferroalloys and Steel Additives
Prior to riffling, the starting amount each time must be mixed
for Determination of Chemical Composition
by coning at least twice.
3. Unit Quantities for Sampling and Testing
5. Testing for Size Analysis
3.1 Each shipment, except as otherwise agreed upon by the
5.1 Samples used for screen testing must be dry. If there is
purchaser and the manufacturer, shall constitute a unit for
a question as to whether the material is suitably dry, a criterion
sampling and testing. It is recommended that shipments of any
of 0.25 % loss in weight at 230°F (110°C) applies.
alloy exceeding 100 tons (91 000 kg) be divided into smaller
5.2 With respect to size characteristics, ferroalloys are
lots for sampling according to some plan best adapted to the
usually classified as either “lump” or “crushed” sizes. Although
material and conditions, such as each cast, each carload, each
the line of demarcation may vary somewhat, the crushed
category refers usually to those sizes which have an upper limit
1 of 4 in. (102 mm) or less. The lump sizes involve all of the
These test methods are under the jurisdiction of ASTM Committee A-1 on
other categories that are coarser than 4 in. in top size.
Steel, Stainless Steel, and Related Alloys and are the direct responsibility of
Subcommittee A01.18 on Castings.
5.3 Lumps—Using either weight or linea
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