iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM E2403-06

(Test Method)

Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry

Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry

SIGNIFICANCE AND USE
The sulfated ash may be used to indicate the level of known metal-containing additives or impurities in an organic material. When phosphorus is absent, barium, calcium, magnesium, sodium and potassium are converted to their sulfates. Tin and zinc are converted to their oxides.
This standard may be used for research and development, specification acceptance and quality assurance purposes.
SCOPE
1.1 This standard describes the determination of sulfated ash content (sometimes called residue-on-ignition) of organic materials by thermogravimetry. The method converts common metals found in organic materials (such as sodium, potassium, lithium, calcium, magnesium, zinc, and tin0 into their sulfate salts permitting estimation of their total content as sulfates or oxides. The range of the test method is from 0.1 to 100 % metal content.
1.2 SI values are the standards.
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 to determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
28-Feb-2006
ICS
71.040.40 - Chemical analysis
Technical Committee
E37 - Thermal Measurements
Drafting Committee
E37.01 - Calorimetry and Mass Loss
Current Stage
Ref Project

Relations

Replaces
ASTM E2403-04 - Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry
Effective Date
01-Mar-2006
Replaced By
ASTM E2403-06(2012) - Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry
Effective Date
01-Sep-2012

Buy Standard

ASTM E2403-06 - Standard Test Method for Sulfated Ash of Organic Materials by ThermogravimetryASTM E2403-06 - Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry
PreviousNext
Standard
ASTM E2403-06 - Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry
English language
3 pages
sale 15% off
Preview
sale 15% off
Preview

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E2403 − 06
StandardTest Method for
1
Sulfated Ash of Organic Materials by Thermogravimetry
This standard is issued under the fixed designation E2403; 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 2.2 Other Standards:
The United States Pharmacopeia XXII and The National
1.1 This standard describes the determination of sulfated
Formulary XVII, United States Pharmacopeial
ash content (sometimes called residue-on-ignition) of organic
Convention, Rockville, MD, 1990, Section 281, p. 1527
materials by thermogravimetry. The method converts common
metals found in organic materials (such as sodium, potassium,
3. Terminology
lithium, calcium, magnesium, zinc, and tin) into their sulfate
3.1 Definitions:
salts permitting estimation of their total content as sulfates or
3.1.1 Technical terms used in this standard are defined in
oxides. The range of the test method is from 0.1 to 100 %
Terminologies E473 and E1142
metal content.
3.1.2 sulfated ash, n—the residue remaining after a speci-
1.2 The values stated in SI units are to be regarded as
men has been oxidized, and the residue subsequently treated
standard. No other units of measurement are included in this
with sulfuric acid and heated to constant weight.
standard.
3.1.3 residue-on-ignition, ROI, n—a commonly used alias
1.3 This standard does not purport to address all of the
for sulfated ash.
safety concerns, if any, associated with its use. It is the
3.1.4 volatiles, n—for the purpose of this test, those mate-
responsibility of the user of this standard to establish appro-
rials evolving as gas at temperatures below 160 °C in an air
priate safety and health practices and to determine the
atmosphere.
applicability of regulatory limitations prior to use.
4. Summary of Test Method
2. Referenced Documents
4.1 A test specimen is ignited and burned in an air atmo-
2
2.1 ASTM Standards:
sphere at temperatures up to 600 °C until only ash remains.
D874 Test Method for Sulfated Ash from Lubricating Oils
After cooling, the residue is treated with sulfuric acid and
and Additives
heated to 800 °C to constant weight. The residue remaining is
D914 Test Methods for Ethylcellulose
identified as sulfated ash.
D3516 Test Methods for Ashing Cellulose
4.2 This test method is similar to Test Method D874 for
E473 Terminology Relating to Thermal Analysis and Rhe-
lubricating oils and additives, Test Methods D914 for ethyl
ology
cellulose, Test Methods D3516 cellulose, and that of The
E1131 Test Method for CompositionalAnalysis by Thermo-
United States Pharmacopeia XXII and makes use of thermo-
gravimetry
gravimetric apparatus to perform the determination.
E1142 Terminology Relating to Thermophysical Properties
E1582 Practice for Calibration of Temperature Scale for
5. Significance and Use
Thermogravimetry
5.1 The sulfated ash may be used to indicate the level of
E2040 Test Method for Mass Scale Calibration of Thermo-
known metal-containing additives or impurities in an organic
gravimetric Analyzers
material. When phosphorus is absent, barium, calcium,
magnesium, sodium and potassium are converted to their
sulfates. Tin and zinc are converted to their oxides.
1
ThistestmethodisunderthejurisdictionofASTMCommitteeE37onThermal
Measurements and is the direct responsibility of Subcommittee E37.01 on Calo-
5.2 This standard may be used for research and
rimetry and Mass Loss.
development, specification acceptance and quality assurance
Current edition approved March 1, 2006. Published April 2006. Originally
purposes.
approved in 2004. Last previous edition approved in 2004 as E2403 – 04. DOI:
10.1520/E2403-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Interferences
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 If phosphorus is present with metals, it partially or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. wholly remains in the sulfated ash as metal phosphates.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2403 − 06
6.2 Sulfur and chlorides do not interfere. materials suitable for the temperature range of this method,
namely 25 to 800 °C.
7. Apparatus
11.2 Perform mass calibration of the thermogravimetric
7.1 Thermogravimetric Analyzer (TGA)—The essential in-
analyzer according to Test Method E2040.
strumentation required to provide the minimum thermogravi-
metric analytical capability for this standard includes:
12. Proc
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

ASTM
ASTM E2160-23(Test Method)
Standard Test Method for Heat of Reaction of Thermally Reactive Materials by Differential Scanning Calorimetry

SIGNIFICANCE AND USE
5.1 This test method is useful in determining the extrapolated onset temperature, the peak heat flow temperature and the heat of reaction of a material. Any onset temperature determined by this test method is not valid for use as the sole information used for determination of storage or processing conditions.  
5.2 This test method is useful in determining the fraction of a reaction that has been completed in a sample prior to testing. This fraction of reaction that has been completed can be a measure of the degree of cure of a thermally reactive polymer or can be a measure of decomposition of a thermally reactive material upon aging.  
5.3 The heat of reaction values may be used in Practice E1231 to determine hazard potential figures-of-merit Explosion Potential and Shock Sensitivity.  
5.4 This test method may be used in research, process control, quality assurance, and specification acceptance.
SCOPE
1.1 This test method determines the exothermic heat of reaction of thermally reactive chemicals or chemical mixtures, using milligram specimen sizes, by differential scanning calorimetry. Such reactive materials may include thermally unstable or thermoset materials.  
1.2 This test method also determines the extrapolated onset temperature and peak heat flow temperature for the exothermic reaction.  
1.3 This test method may be performed on solids, liquids or slurries.  
1.4 The applicable temperature range of this test method is 25 °C to 600 °C.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 This standard is related to Test Method E537, but provides additional information.  
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    6 pages
    English language
    sale 15% off
  • Standard
    6 pages
    English language
    sale 15% off
ASTM
ASTM E2403-23(Test Method)
Standard Test Method for Sulfated Ash of Organic Materials by Thermogravimetry

SIGNIFICANCE AND USE
5.1 The sulfated ash value indicates the level of known metal-containing additives or impurities in an organic material. When phosphorus is absent, barium, calcium, magnesium, sodium and potassium are converted to their sulfates. Tin and zinc are converted to their oxides.  
5.2 This test method may be used for research and development, specification acceptance, and quality assurance purposes.
SCOPE
1.1 This test method describes the determination of sulfated ash content (sometimes called residue-on-ignition) of organic materials by thermogravimetry. This test method converts common metals found in organic materials (such as sodium, potassium, lithium, calcium, magnesium, zinc, and tin) into their sulfate salts permitting estimation of their total content as sulfates or oxides. The range of this test method is from 0.1 % to 100 % metal content.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM E1641-23(Test Method)
Standard Test Method for Decomposition Kinetics by Thermogravimetry Using the Ozawa/Flynn/Wall Method

SIGNIFICANCE AND USE
5.1 Thermogravimetry provides a rapid method for determining the temperature-decomposition profile of a material.  
5.2 This test method can be used for estimating lifetimes of materials, using Practice E1877 provided that a relationship has been established between the thermal endurance test results and actual lifetime tests.
SCOPE
1.1 This test method describes the determination of the kinetic parameters, Arrhenius activation energy, and pre-exponential factor by thermogravimetry, based on the assumption that the decomposition obeys first-order kinetics using the Ozawa/Flynn/Wall isoconversional method (1, 2).2  
1.2 This test method is generally applicable to materials with well-defined decomposition profiles, namely, a smooth, continuous mass change with a single maximum rate.  
1.3 This test method is normally applicable to decomposition occurring in the range from 400 K to 1300 K (nominally 100 °C to 1000 °C). The temperature range may be extended depending on the instrumentation used.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    7 pages
    English language
    sale 15% off
  • Standard
    7 pages
    English language
    sale 15% off
ASTM
ASTM E2958-21(Test Method)
Standard Test Methods for Kinetic Parameters by Factor Jump/Modulated Thermogravimetry

SIGNIFICANCE AND USE
5.1 The activation energy may be used to calculate thermal endurance and an estimate of the lifetime of the material at specified temperatures using Test Method E1877.  
5.2 The kinetic parameters determined by these test methods may be used in quality assurance, specification acceptance, research, and development.  
5.3 The kinetic parameters of activation energy and logarithm of the pre-exponential factor determined by these test methods have little intrinsic value in themselves. Most practical applications of this information, such as lifetime estimation (see Test Method E1877), also require an estimation of the precision of the respective values. Determination of that precision by replicated determination is a non-manditory part of these test methods.
SCOPE
1.1 These test methods describe the model-free determination of Arrhenius activation energy by thermogravimetry using the factor jump (1)2 (Test Method A) or modulated thermogravimetry (2) (Test Methods B and C) techniques. With the assumption of a first-order kinetic model, the pre-exponential factor is additionally determined.  
1.2 These test methods are applicable to materials with well-defined decomposition profiles, namely, a smooth, continuous mass change.  
1.3 These test methods are applicable to decomposition occurring in the range from 400 K to 1200 K (nominally 100 °C to 900 °C). The temperature range may be extended depending on the instrumentation and material used.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    7 pages
    English language
    sale 15% off
  • Standard
    7 pages
    English language
    sale 15% off
ASTM
ASTM E3007-21(Practice)
Standard Practice for Selection and Use of Kinetic Reference Values in the Study of Decomposition Reactions by Thermogravimetry

SIGNIFICANCE AND USE
5.1 The kinetic parameters provided in this practice may be used to evaluate the performance of a standard, apparatus, technique or software for the determined mean parameters (such as Test Methods E1641 and E2958). The results obtained by these approaches may be compared to the values provided by this practice.
SCOPE
1.1 It is the purpose of this practice to provide kinetic parameters for reference material(s) to be used for evaluation of thermogravimetry methods, apparatus, and software where decomposition mass loss and associated temperature are measured. This practice addresses nth order reactions.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM E1877-21(Practice)
Standard Practice for Calculating Thermal Endurance of Materials from Thermogravimetric Decomposition Data

SIGNIFICANCE AND USE
5.1 Thermogravimetry provides a rapid method for the determination of the temperature-decomposition profile of a material.  
5.2 This practice is useful for quality control, specification acceptance, and research.  
5.3 This practice is intended to provide an accelerated thermal endurance estimation in a fraction of the time require for oven-aging tests. The primary product of this practice is the thermal index (temperature) for a selected estimated thermal endurance (time) as derived from material decomposition.  
5.4 Alternatively, the estimated thermal endurance (time) of a material may be estimated from a selected thermal index (temperature).  
5.5 Additionally, the thermal endurance of a material at selected failure time and temperature may be estimated when compared to a reference value for thermal endurance and thermal index obtained from electrical or mechanical oven aging tests.  
5.6 This practice shall not be used for product lifetime predications unless a correlation between test results and actual lifetime has been demonstrated. In many cases, multiple mechanisms occur during the decomposition of a material, with one mechanism dominating over one temperature range, and a different mechanism dominating in a different temperature range. Users of this practice are cautioned to demonstrate for their system that any temperature extrapolations are technically sound.
SCOPE
1.1 This practice describes the determination of thermal endurance, thermal index, and relative thermal index for organic materials using the Arrhenius activation energy generated for thermal decomposition measured by thermogravimetry.  
1.2 This practice is generally applicable to materials with a well-defined thermal decomposition profile upon heating, namely a smooth, continuous mass change.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    7 pages
    English language
    sale 15% off
  • Standard
    7 pages
    English language
    sale 15% off
ASTM
ASTM E1868-10(2021)(Test Method)
Standard Test Methods for Loss-On-Drying by Thermogravimetry

SIGNIFICANCE AND USE
5.1 These test methods are used to estimate the amount of volatile materials present in a material.  
5.2 These test methods are useful for design purposes, service evaluation, regulatory statutes, manufacturing control, quality control, specification acceptance, development, and research.  
5.3 The results obtained by these test methods may be equivalent to those obtained by other test methods and may be known by other terms in their respective fields. Other tests and terms encountered include loss-on-heating (see Footnote 5 and Test Methods D6, D2288, and E359); heating loss (see Test Methods D1509); evaporative loss (see Test Method D2595); volatile organic carbon, moisture, or water (see Test Methods D2216 and D3175); volatility (see Test Method D4893); highly volatile matter (see Test Method E897); and volatile content (see Guide D2832).
SCOPE
1.1 These test methods describe a procedure for determining the amount of volatile matter of any kind that is driven off from a test specimen under a specific set of temperature and time conditions. These test methods determine only the mass of material lost, not its identity.  
1.2 These test methods are applicable to a wide variety of solid or liquid materials, mixtures, or blends where the major component is stable at the test temperature.
Note 1: These test methods can be applied to the analysis of volatile organic compounds (VOC) content in metalworking fluids and direct contact lubricants subject to South Coast Air Quality Management District (SCAQMD) Rule 1144.  
1.3 The applicable temperature range for these test methods are generally between ambient temperature and 1000°C.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 There is no ISO method equivalent to this test standard.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    6 pages
    English language
    sale 15% off
ASTM
ASTM E2551-20(Test Method)
Standard Test Methods for Humidity Calibration (or Conformation) of Humidity Generators for Use with Thermogravimetric Analyzers

SIGNIFICANCE AND USE
5.1 These test methods calibrate or demonstrate conformity of the humidity level in a purge gas generated by a humidity generator at a fixed temperature. Such calibration or demonstration of conformity may be required by quality initiatives.  
5.2 Conformance demonstrates that the humidified purge gas is within some established limits.  
5.3 Calibration provides an offset and or slope value that may be used for establishing the relative humidity scale of the apparatus.
SCOPE
1.1 These test methods describe the humidity calibration (or conformance) of humidity generators for use with thermogravimetric analyzers and other thermal analysis apparatus. The humidity range covered is 5 % relative humidity (% RH) to 95 % RH and the temperature range is 0 °C to 80 °C.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    6 pages
    English language
    sale 15% off
  • Standard
    6 pages
    English language
    sale 15% off
ASTM
ASTM E1131-20(Test Method)
Standard Test Method for Compositional Analysis by Thermogravimetry

SIGNIFICANCE AND USE
5.1 This test method is intended for use in quality control, material screening, and related problem solving where a compositional analysis is desired or a comparison can be made with a known material of the same type.  
5.2 The parameters described should be considered as guidelines. They may be altered to suit a particular analysis, provided the changes are noted in the report.  
5.3 The proportion of the determined components in a given mixture or blend may indicate specific quality or end use performance characteristics. Particular examples include the following:  
5.3.1 Increasing soot (carbon) content of used diesel lubricating oils indicates decreasing effectiveness.  
5.3.2 Specific carbon-to-polymer ratio ranges are required in some elastomeric and plastic parts in order to achieve desired mechanical strength and stability.  
5.3.3 Some filled elastomeric and plastic products require specific inert content (for example, ash, filler, reinforcing agent, etc.) to meet performance specifications.  
5.3.4 The volatile matter, fixed carbon, and ash content of coal and coke are important parameters. The “ranking” of coal increases with increasing carbon content and decreasing volatile and hydrocarbon, (medium volatility) content.
SCOPE
1.1 This test method provides a general technique incorporating thermogravimetry to determine the amount of highly volatile matter, medium volatile matter, combustible material, and ash content of compounds. This test method will be useful in performing a compositional analysis in cases where agreed upon by interested parties.  
1.2 This test method is applicable to solids and liquids.  
1.3 The temperature range of test is typically room temperature to 1000 °C. Composition between 1 weight % and 100 weight % of individual components may be determined.  
1.4 This test method utilizes an inert and reactive gas environment.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    6 pages
    English language
    sale 15% off
  • Standard
    6 pages
    English language
    sale 15% off
ASTM
ASTM D5544-16(2023)(Test Method)
Standard Test Method for On-Line Measurement of Residue After Evaporation of High-Purity Water

SIGNIFICANCE AND USE
5.1 Even so-called high-purity water will contain contaminants. While not always present, these contaminants may contribute one or more of the following: dissolved active ionic substances such as calcium, magnesium, sodium, potassium, manganese, ammonium, bicarbonates, sulfates, nitrates, chloride and fluoride ions, ferric and ferrous ions, and silicates; dissolved organic substances such as pesticides, herbicides, plasticizers, styrene monomers, deionization resin material; and colloidal suspensions such as silica. While this test method facilitates the monitoring of these contaminants in high-purity water, in real time, with one instrument, this test method is not capable of identifying the various sources of residue contamination or detecting dissolved gases or suspended particles.  
5.2 This test method is calibrated using weighed amounts of an artificial contaminant (potassium chloride). The density of potassium chloride is reasonably typical of contaminants found in high-purity water; however, the response of this test method is clearly based on a response to potassium chloride. The response to actual contaminants found in high-purity water may differ from the test method's calibration. This test method is not different from many other analytical test methods in this respect.  
5.3 Together with other monitoring methods, this test method is useful for diagnosing sources of RAE in ultra-pure water systems. In particular, this test method can be used to detect leakages such as colloidal silica breakthrough from the effluent of a primary anion or mixed-bed deionizer. In addition, this test method has been used to measure the rinse-up time for new liquid filters and has been adapted for batch-type sampling (this adaptation is not described in this test method).  
5.4 Obtaining an immediate indication of contamination in high-purity water has significance to those industries using high-purity water for manufacturing components; production can be halted immediate...
SCOPE
1.1 This test method covers the determination of dissolved organic and inorganic matter and colloidal material found in high-purity water used in the semiconductor, and related industries. This material is referred to as residue after evaporation (RAE). The range of the test method is from 0.001 μg/L (ppb) to 60 μg/L (ppb).  
1.2 This test method uses a continuous, real time monitoring technique to measure the concentration of RAE. A pressurized sample of high-purity water is supplied to the test method's apparatus continuously through ultra-clean fittings and tubing. Contaminants from the atmosphere are therefore prevented from entering the sample. General information on the test method and a literature review on the continuous measurement of RAE has been published.2  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazards statements, see Section 8.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
    9 pages
    English language
    sale 15% off