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ASTM C1494-01(2007)

(Test Method)

Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder

Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder

SCOPE
1.1 These test methods cover the determination of mass fraction % of carbon, nitrogen and oxygen in silicon nitride powder having chemical compositions within the following limits:ElementMass Fraction % RangeCarbon0.05 to 5.0Nitrogen30 to 45Oxygen0.1 to 1.5
1.2 Two test methods appear in this standard.
1.2.1 Total Carbon by the Direct Combustion-Infrared Measurement Method.
1.2.2 Nitrogen and oxygen by the Inert Gas Fusion-Thermal Conductivity Measurement Method.
1.3 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. Specific hazard statements are given in Section 6 .

General Information

Status
Historical
Publication Date
31-Oct-2007
ICS
71.100.10 - Materials for aluminium production
Technical Committee
C28 - Advanced Ceramics
Drafting Committee
C28.03 - Physical Properties and Non-Destructive Evaluation
Current Stage
Ref Project

Relations

Replaces
ASTM C1494-01 - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
Effective Date
01-Nov-2007
Replaced By
ASTM C1494-13 - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
Effective Date
01-Aug-2013

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ASTM C1494-01(2007) - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride PowderASTM C1494-01(2007) - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
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ASTM C1494-01(2007) - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C1494 − 01(Reapproved 2007)
Standard Test Methods for
Determination of Mass Fraction of Carbon, Nitrogen, and
1
Oxygen in Silicon Nitride Powder
This standard is issued under the fixed designation C1494; 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 gen in Titanium and Titanium Alloys by the Inert Gas
Fusion Technique
1.1 These test methods cover the determination of mass
E1569 Test Method for Determination of Oxygen in Tanta-
fraction % of carbon, nitrogen and oxygen in silicon nitride
lum Powder by Inert Gas Fusion Technique
powder having chemical compositions within the following
E1806 Practice for Sampling Steel and Iron for Determina-
limits:
tion of Chemical Composition
Element Mass Fraction % Range
E1941 Test Method for Determination of Carbon in Refrac-
Carbon 0.05 to 5.0 tory and Reactive Metals andTheirAlloys by Combustion
Nitrogen 30 to 45
Analysis
Oxygen 0.1 to 1.5
3. Significance and Use
1.2 Two test methods appear in this standard.
1.2.1 Total Carbon by the Direct Combustion-Infrared Mea-
3.1 Thesetestmethodsareforthechemicalanalysisofmass
surement Method.
fraction of carbon, nitrogen and oxygen in silicon nitride
1.2.2 Nitrogen and oxygen by the Inert Gas Fusion-Thermal
powder. It is assumed that all who use these test methods will
Conductivity Measurement Method.
be trained analysts, capable of performing common laboratory
proceduresskillfullyandsafely.Itisexpectedthatworkwillbe
1.3 This standard does not purport to address all of the
performed in a properly equipped laboratory.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Apparatus and Reagents
priate safety and health practices and determine the applica-
4.1 The procedure was written with commercial carbon and
bility of regulatory limitations prior to use. Specific hazard
nitrogen/oxygen analyzers in mind. For any other analyzer, the
statements are given in Section 6.
instrument manual specific to that analyzer shall be consulted
for instrument set-up.
2. Referenced Documents
2
4.2 Specific apparatus and reagents required for each deter-
2.1 ASTM Standards:
minationarelistedinseparatesectionsprecedingtheprocedure
E29 Practice for Using Significant Digits in Test Data to
.
Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Consid-
5. Sampling
erations for Chemical Analysis of Metals, Ores, and
5.1 Procedures for sampling the materials refer to those
Related Materials
parts of Practice E1806 pertaining to solid form samples of the
E1019 Test Methods for Determination of Carbon, Sulfur,
type used for instrumental analysis.
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
Alloys by Various Combustion and Fusion Techniques
6. Hazards
E1409 Test Method for Determination of Oxygen and Nitro-
6.1 For hazards to be observed in the use of certain reagents
in this test method, refer to Practice E50.
1
These test methods are under the jurisdiction of ASTM Committee C28 on
6.2 Use care when handling hot crucibles and operating
Advanced Ceramics and are the direct responsibility of Subcommittee C28.03 on
furnaces to avoid personal injury by either burn or electrical
Physical Properties and Non-Destructive Evaluation.
shock.
Current edition approved Nov. 1, 2007. Published December 2007. Originally
approved in 2001. Last previous edition approved in 2001 as C1494 – 01. DOI:
7. Total Carbon in Silicon Nitride Powder by Direct
10.1520/C1494-01R07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Combustion—Infrared Detection Method
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 Scope—This test method covers the determination of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. carbon in concentrations from 0.05 to 5.0 % mass fraction.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1494 − 01 (2007)
3
7.2 Summary of Test Method —The carbon is converted to (e) Enter blank value following routine outlined in opera-
carbon dioxide by combustion in a stream of oxygen. The tor’s instruction manual.
amount of carbon dioxide is measured by infrared (IR)
7.7 Instrument Calibration Procedure :
absorption.
7.7.1 This procedure was written specially for a carbon
7.3 Apparatus—This test method is written for use with analyzer.Thetypeandamountsofacceleratortobeaddedshall
commercial carbo
...

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