ASTM C1494-13

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

SIGNIFICANCE AND USE
3.1 These test methods are for the chemical analysis of mass fraction of carbon, nitrogen and oxygen in silicon nitride powder. They are used in research, development, production, acceptance, and quality control of silicon nitride powders used to produce ceramic components with silicon nitride content.  
3.2 It is assumed that all who use these test methods will be trained analysts, capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.
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:    
Element  
Mass Fraction % Range  
Carbon  
0.05 to 5.0  
Nitrogen  
30 to 45  
Oxygen  
0.1 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 by the Inert Gas Fusion-Thermal Conductivity Measurement Method and Oxygen by the Inert Gas Fusion-Infrared 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-Jul-2013
• ICS: 71.100.10 - Materials for aluminium production
• Technical Committee: C28 - Advanced Ceramics
• Drafting Committee: C28.03 - Physical Properties and Non-Destructive Evaluation

Relations

• Replaces: ASTM C1494-01(2007) - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
• Effective Date: 01-Aug-2013
• Replaced By: ASTM C1494-13(2018) - Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
• Effective Date: 01-Oct-2018

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C1494 − 13
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 E1806 Practice for Sampling Steel and Iron for Determina-
tion of Chemical Composition
1.1 These test methods cover the determination of mass
fraction % of carbon, nitrogen and oxygen in silicon nitride
3. Significance and Use
powder having chemical compositions within the following
limits:
3.1 Thesetestmethodsareforthechemicalanalysisofmass
Element Mass Fraction % Range fraction of carbon, nitrogen and oxygen in silicon nitride
powder. They are used in research, development, production,
Carbon 0.05 to 5.0
acceptance, and quality control of silicon nitride powders used
Nitrogen 30 to 45
Oxygen 0.1 to 1.5 to produce ceramic components with silicon nitride content.
1.2 Two test methods appear in this standard.
3.2 It is assumed that all who use these test methods will be
1.2.1 Total Carbon by the Direct Combustion-Infrared Mea-
trained analysts, capable of performing common laboratory
surement Method.
proceduresskillfullyandsafely.Itisexpectedthatworkwillbe
1.2.2 Nitrogen by the Inert Gas Fusion-Thermal Conductiv-
performed in a properly equipped laboratory.
ity Measurement Method and Oxygen by the Inert Gas
Fusion-Infrared Measurement Method.
4. Apparatus and Reagents
1.3 This standard does not purport to address all of the
4.1 The procedure was written with commercial carbon and
safety concerns, if any, associated with its use. It is the
nitrogen/oxygen analyzers in mind. For any other analyzer, the
responsibility of the user of this standard to establish appro-
instrument manual specific to that analyzer shall be consulted
priate safety and health practices and determine the applica-
for instrument set-up.
bility of regulatory limitations prior to use. Specific hazard
4.2 Specific apparatus and reagents required for each deter-
statements are given in Section 6.
minationarelistedinseparatesectionsprecedingtheprocedure
2. Referenced Documents
.
2
2.1 ASTM Standards:
5. Sampling
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5.1 Procedures for sampling the materials refer to those
E50 Practices for Apparatus, Reagents, and Safety Consid-
parts of Practice E1806 pertaining to solid form samples of the
erations for Chemical Analysis of Metals, Ores, and
type used for instrumental analysis.
Related Materials
E1019 Test Methods for Determination of Carbon, Sulfur,
6. Hazards
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
6.1 For hazards to be observed in the use of certain reagents
Alloys by Various Combustion and Fusion Techniques
in this test method, refer to Practice E50.
6.2 Use care when handling hot crucibles and operating
1
These test methods are under the jurisdiction of ASTM Committee C28 on
furnaces to avoid personal injury by either burn or electrical
Advanced Ceramics and are the direct responsibility of Subcommittee C28.03 on
Physical Properties and Non-Destructive Evaluation. shock.
Current edition approved Aug. 1, 2013. Published January 2014. Originally
approved in 2001. Last previous edition approved in 2007 as C1494 – 01 (2007).
7. Total Carbon in Silicon Nitride Powder by Direct
DOI: 10.1520/C1494-13.
2
Combustion—Infrared Detection Method
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. 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

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C1494 − 13
3
7.2 Summary of Test Method —The carbon is converted to (c) Place crucible on furnace pedestal and analyze.
carbon dioxide by combustion in a stream of oxygen. The (d) Repeat steps 7.6.3a through 7.6.3c a minimum of three
amount of carbon dioxide is measured by infrared (IR) times.
absorption. (e) Enter blank value following routine outlined in opera-
tor’s instruction manual.
7.3 Apparatus—This test method is written for use with
commercial carbon analyzers, equipped to carry out the analy- 7.7 Instrument Calibration Procedure :
ses operations automatically and calibrated using steel stan-
7.7.1 This proce
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C1494 − 01 (Reapproved 2007) C1494 − 13
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
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:
Element Mass Fraction % Range
Carbon 0.05 to 5.0
Nitrogen 30 to 45
Oxygen 0.1 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 and Oxygen by the Inert Gas
Fusion-Infrared 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by
Various Combustion and Fusion Techniques
E1409 Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion
E1569 Test Method for Determination of Oxygen in Tantalum Powder by Inert Gas Fusion Technique
E1806 Practice for Sampling Steel and Iron for Determination of Chemical Composition
E1941 Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis
3. Significance and Use
3.1 These test methods are for the chemical analysis of mass fraction of carbon, nitrogen and oxygen in silicon nitride powder.
They are used in research, development, production, acceptance, and quality control of silicon nitride powders used to produce
ceramic components with silicon nitride content.
3.2 These test methods are for the chemical analysis of mass fraction of carbon, nitrogen and oxygen in silicon nitride powder.
It is assumed that all who use these test methods will be trained analysts, capable of performing common laboratory procedures
skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.
4. Apparatus and Reagents
4.1 The procedure was written with commercial carbon and nitrogen/oxygen analyzers in mind. For any other analyzer, the
instrument manual specific to that analyzer shall be consulted for instrument set-up.
1
These test methods are under the jurisdiction of ASTM Committee C28 on Advanced Ceramics and are the direct responsibility of Subcommittee C28.03 on Physical
Properties and Non-Destructive Evaluation.
Current edition approved Nov. 1, 2007Aug. 1, 2013. Published December 2007January 2014. Originally approved in 2001. Last previous edition approved in 20012007
as C1494 – 01.C1494 – 01 (2007). DOI: 10.1520/C1494-01R07.10.1520/C1494-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1494 − 13
4.2 Specific apparatus and reagents required for each determination are listed in separate sections preceding the procedure .
5. Sampling
5.1 Procedures for sampling the materials refer to those parts of Practice E1806 pertaining to solid form samples of the type
used for instrumental analysis.
6. Hazards
6.1 For hazards to be observed in the use of certain reagents in this test method, refer to Practice E50.
6.2 Use care when handling hot crucibles and operating furnaces to avoid personal injury by either bu
...