Standard Specification for Nickel Oxide Sinter

ABSTRACT
This specifications covers standards for Grade 75 nickel oxide sinter to be used for alloying in iron and steel melting. The material shall adhere to specified nickel, cobalt, copper, iron, and sulfur contents. Guidelines for sampling and treatment of materials for chemical analysis are given.
SCOPE
1.1 This specification covers one grade of nickel oxide sinter, designated as 75 used for alloying in iron and steel melting.

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Publication Date
31-Mar-2013
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ASTM A636-08(2013) - Standard Specification for Nickel Oxide Sinter
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:A636 −08 (Reapproved 2013)
Standard Specification for
1
Nickel Oxide Sinter
This standard is issued under the fixed designation A636; 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. Sampling for Chemical Analysis
1.1 This specification covers one grade of nickel oxide 5.1 The material shall be sampled in accordance with
sinter, designated as 75 used for alloying in iron and steel procedures outlined below:
melting. 5.1.1 The sample shall be taken by cutting across the entire
stream at regular intervals during the time of movement of the
2. Referenced Documents
mass being sampled. The quantity to be taken at each interval
2
2.1 ASTM Standards: and the number of such intervals shall be so proportioned that
the total quantity taken shall amount to not less than 0.40 % of
A1025 Specification for Ferroalloys and Other Alloying
Materials, General Requirements the total material being sampled.
5.2 Treatment of Sample:
3. General Conditions for Delivery
5.2.1 In the case of nickel oxide sinter 75, the sample
3.1 Materials furnished to this specification shall conform to
representing each shipment or lot shall be reduced in amount
the requirements of Specification A1025, including any supple-
using a riffle splitter or other suitable mechanical splitter to
mentary requirements that are indicated in the purchase order.
1000 g.This 1000-g sample shall be placed in an oven at 250°F
Failure to comply with the general requirements of Specifica- 1
(121°C) for ⁄2 h to remove any traces of moisture, and then
tion A1025 constitutes nonconformance with this specification.
pulverized to pass an 80-mesh screen using appropriate equip-
In case of conflict between the requirements of this specifica-
ment to avoid sample contamination. Approximately 250 g of
tion and Specification A1025, this specification shall prevail.
this pulverized material shall be split out for copper and sulfur
assays, using a riffle splitter or other suitable mechanical
4. Chemical Requirements
splitter. The unused portion of individual shipment (or lot)
4.1 The chemical requirements are shown in Table 1.
samples whose copper and sulphur assays are within specifi-
cation shall be combined by weight into two, three, or four lot
1
composites. Approximately 250 g
...

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