iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM E945-02

(Test Method)

Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry

Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry

SCOPE
1.1 This test method covers the determination of zinc in ores, concentrates, and related materials having chemical composition within the following limits: Element Concentration Range, %Zinc 5.0 to 70.0Lead 0.5 to 50.0Copper 0.1 to 3.0Iron 0.5 to 16.0Sulfur 4.0 to 30.0Calcium 0.1 to 20.0Magnesium0.1 to 10.0Cadmium 0.1 to 8.0Arsenic 0.01 to 1.0Antimony0.01 to 0.005Bismuth 0.001 to 0.1Cobalt 0.1 to 0.5Nickel 0.3 to 3.0Silver 0.00 to 150 oz/tonGold 0.00 to 1.0 oz/ton
1.2 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.

General Information

Status
Historical
Publication Date
09-Mar-2002
ICS
73.060.99 - Other metalliferous minerals
Technical Committee
E01 - Analytical Chemistry for Metals, Ores, and Related Materials
Drafting Committee
E01.02 - Ores, Concentrates, and Related Metallurgical Materials
Current Stage
Ref Project

Relations

Replaces
ASTM E945-96 - Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
Effective Date
10-Mar-2002
Replaced By
ASTM E945-02a - Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
Effective Date
10-Jun-2002

Buy Standard

ASTM E945-02 - Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric TritrimetryASTM E945-02 - Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
PreviousNext
Standard
ASTM E945-02 - Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
English language
4 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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 945 – 02
Standard Test Method for
Determination of Zinc in Zinc Ores and Concentrates by
1
Complexometric Titrimetry
This standard is issued under the fixed designation E 945; 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.
5
1. Scope Methods for Chemical Analysis of Metals
6
E 663 Practice for Flame Atomic Absorption Analysis
1.1 This test method covers the determination of zinc in
E 882 Guide for Accountability and Quality Control in the
ores, concentrates, and related materials having chemical
6
Chemical Analysis Laboratory
composition within the following limits:
E 1024 Guide for Chemical Analysis of Metals and Metal
Element Concentration Range, %
Bearing Ores by Flame Atomic Absorption Spectropho-
6
Zinc 5.0 to 70.0
tometry
Lead 0.5 to 50.0
E 1601 Practice for Conducting an Interlaboratory Study to
Copper 0.1 to 3.0
4
Evaluate the Performance of an Analytical Method
Iron 0.5 to 16.0
Sulfur 4.0 to 30.0
Calcium 0.1 to 20.0
3. Terminology
Magnesium 0.1 to 10.0
3.1 Definitions—For definitions of terms used in this test
Cadmium 0.1 to 8.0
Arsenic 0.01 to 1.0
method, refer to Terminology E 135.
Antimony 0.01 to 0.005
Bismuth 0.001 to 0.1
4. Summary of Test Method
Cobalt 0.1 to 0.5
Nickel 0.3 to 3.0
4.1 The sample, after appropriate acid decomposition, is
Silver 0.00 to 150 oz/ton
evaporated to near dryness. The salts are dissolved in acid,
Gold 0.00 to 1.0 oz/ton
interfering elements are removed, and the zinc is extracted as
1.2 This standard does not purport to address all of the
thiocyanate complex into MIBK. Zinc is determined in the
safety concerns, if any, associated with its use. It is the
extract by titrating with EDTA, using an internal indicator.
responsibility of the user of this standard to establish appro-
5. Significance and Use
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5.1 This test method is primarily intended to test materials
for compliance with compositional specifications. It is assumed
2. Referenced Documents
that all who use this test method will be trained analysts
2.1 ASTM Standards:
working in properly equipped laboratories.
2
D 1193 Specification for Reagent Water
5.2 Appropriate quality control practices shall be followed
E 29 Practice for Using Significant Digits in Test Data to
such as those described in Guide E 882.
3
Determine Conformance with Specifications
6. Interferences
E 50 Practices for Apparatus, Reagents, and Safety Precau-
4
tions for Chemical Analysis of Metals
6.1 With the exception of cadmium and cobalt, elements do
E 135 Terminology Relating to Analytical Chemistry for
not interfere if their concentrations are under the maximum
4
Metals, Ores and Related Materials
limits shown in 1.1.
E 173 Practice for Conducting Interlaboratory Studies of
6.2 When the cadmium content is above 5.0 % in the
material to be analyzed, some of the cadmium is extracted and
will titrate as zinc. The addition of potassium iodide before the
titration serves to prevent the interference of cadmium. The
1
This test method is under the jurisdiction of ASTM Committee E01 on
amount of potassium iodide solution to add in order to prevent
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
the interference of cadmium is listed in 13.10.3.
responsibility of Subcommittee E01.02 on Ores, Concentrates, Refractories, Ce-
ment, and Related Metallurgical Materials.
6.3 Cobalt is extracted and titrated with the zinc. If the
Current edition approved March 10, 2002. Published April 2002. Originally
cobalt content of the material to be analyzed is less than
published as E 945 – 83. Last previous edition E 945 – 96.
2
Annual Book of ASTM Standards, Vol 11.01.
3 5
Annual Book of ASTM Standards, Vol 14.02. Discontinued; see 1997 Annual Book of ASTM Standards, Vol 03.05.
4 6
Annual Book of ASTM Standards, Vol 03.05. Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E 945
0.05 %, the interference is negligible. For cobalt contents 8.8.2 Standardize the EDTA solution by pipetting the sug-
greater than 0.05 %, the cobalt must be extracted as outlined in gested amount of standard zinc solution into a 250-mL
13.9.5. separatory funnel. Add 10 drops of ferric chloride solution, add
distilled water to adjust volume to 50 mL, mix, and proceed as
7. Apparatus
directed in 13.9.2. It is recommended that replicate standard-
7.1 Atomic absorption
...

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 E1600-23(Test Method)
Standard Test Methods for Determination of Gold in Cyanide Solutions

SIGNIFICANCE AND USE
4.1 In primary metallurgical processes for gold bearing ores, gold is extracted with an alkaline cyanide solution. Metallurgical accounting, process control, and ore evaluation procedures depend on accurate, precise, and prompt measurements of the gold levels.  
4.2 These test methods are comparative referee methods for compliance with compositional specifications for metal amounts or to monitor processes. It is assumed that all who use these methods will be trained users capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882, and that proper waste disposal procedures will be followed.
SCOPE
1.1 These test methods cover the determination of gold in ore processing cyanide solutions within the following ranges:    
Method  
Application Range,
μg/mL  
Inductively Coupled Plasma Mass Spectrometry  
0.001 to 0.500  
Flame Atomic Absorption Spectrometry  
0.300 to 10.0
Note 1: The lower limit for the Inductively Coupled Plasma Mass Spectrometry Method, 0.001 µg/mL, was set following the guidance of Practice E1601. The reproducibility Index, R, was calculated using the total standard deviation for the lowest concentration Youden pair solution.  
1.1.1 These test methods may also be applied to cyanide leach solutions from metallurgical evaluation procedures.  
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 The test methods appear in the following order:    
Method  
Sections  
Flame Atomic Absorption Spectrometry  
9 – 16  
Inductively Coupled Plasma Mass Spectrometry  
17 – 24  
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. Specific precautions are given in 11.1.1, 11.5 and 12.2.  
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
    8 pages
    English language
    sale 15% off
  • Standard
    8 pages
    English language
    sale 15% off
ASTM
ASTM E2296-21(Practice)
Standard Practice for Silver Corrections in Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Fire Assay Slag Recycling and Cupel Proof Gravimetry

SIGNIFICANCE AND USE
5.1 This practice is primarily intended to be used for the correction of silver loss in the fire assay process. Silver contents are determined by fire assay for the purpose of metallurgical exchange between buyer and seller. It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This practice covers the silver loss correction, utilizing slag recycling and cupellation of proof silver during the fire assay of metal bearing ores, concentrates, and related metallurgical materials.  
1.2 Units—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. (See Practices E50 and ISO 35:2006.)  
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 E2293-19(Practice)
Standard Practice for Drying of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials for the Determination of Mercury

SIGNIFICANCE AND USE
5.1 This practice is primarily to be used to dry samples for determination of total mercury. It should not be used for determination of sample moisture content. Most sample preparation methods prescribe drying samples at 105 °C, until a constant mass is obtained. The moisture content is determined as the percent mass loss on drying. Because mercury and some of its compounds are volatile at 105 °C, samples for mercury determination shall be dried at 60 °C (see Practice E877, ISO 9599, ISO 12743, and ISO 10251).  
5.2 It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates, and related metallurgical materials.  
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 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
    2 pages
    English language
    sale 15% off
  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM E1600-23(Test Method)
Standard Test Methods for Determination of Gold in Cyanide Solutions

SIGNIFICANCE AND USE
4.1 In primary metallurgical processes for gold bearing ores, gold is extracted with an alkaline cyanide solution. Metallurgical accounting, process control, and ore evaluation procedures depend on accurate, precise, and prompt measurements of the gold levels.  
4.2 These test methods are comparative referee methods for compliance with compositional specifications for metal amounts or to monitor processes. It is assumed that all who use these methods will be trained users capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882, and that proper waste disposal procedures will be followed.
SCOPE
1.1 These test methods cover the determination of gold in ore processing cyanide solutions within the following ranges:    
Method  
Application Range,
μg/mL  
Inductively Coupled Plasma Mass Spectrometry  
0.001 to 0.500  
Flame Atomic Absorption Spectrometry  
0.300 to 10.0
Note 1: The lower limit for the Inductively Coupled Plasma Mass Spectrometry Method, 0.001 µg/mL, was set following the guidance of Practice E1601. The reproducibility Index, R, was calculated using the total standard deviation for the lowest concentration Youden pair solution.  
1.1.1 These test methods may also be applied to cyanide leach solutions from metallurgical evaluation procedures.  
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 The test methods appear in the following order:    
Method  
Sections  
Flame Atomic Absorption Spectrometry  
9 – 16  
Inductively Coupled Plasma Mass Spectrometry  
17 – 24  
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. Specific precautions are given in 11.1.1, 11.5 and 12.2.  
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
    8 pages
    English language
    sale 15% off
  • Standard
    8 pages
    English language
    sale 15% off
ASTM
ASTM E2296-21(Practice)
Standard Practice for Silver Corrections in Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Fire Assay Slag Recycling and Cupel Proof Gravimetry

SIGNIFICANCE AND USE
5.1 This practice is primarily intended to be used for the correction of silver loss in the fire assay process. Silver contents are determined by fire assay for the purpose of metallurgical exchange between buyer and seller. It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This practice covers the silver loss correction, utilizing slag recycling and cupellation of proof silver during the fire assay of metal bearing ores, concentrates, and related metallurgical materials.  
1.2 Units—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. (See Practices E50 and ISO 35:2006.)  
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 E2293-19(Practice)
Standard Practice for Drying of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials for the Determination of Mercury

SIGNIFICANCE AND USE
5.1 This practice is primarily to be used to dry samples for determination of total mercury. It should not be used for determination of sample moisture content. Most sample preparation methods prescribe drying samples at 105 °C, until a constant mass is obtained. The moisture content is determined as the percent mass loss on drying. Because mercury and some of its compounds are volatile at 105 °C, samples for mercury determination shall be dried at 60 °C (see Practice E877, ISO 9599, ISO 12743, and ISO 10251).  
5.2 It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates, and related metallurgical materials.  
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 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
    2 pages
    English language
    sale 15% off
  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM F1210-23(Guide)
Standard Guide for Ecological Considerations for the Use of Oil Spill Dispersants in Freshwater and Other Inland Environments, Lakes and Large Water Bodies

SIGNIFICANCE AND USE
3.1 This guide is meant to aid response teams who may use it during spill response planning and spill events.  
3.2 This guide should be adapted to site specific circumstance.
SCOPE
1.1 This guide covers the use of oil spill dispersants to assist in the control of oil spills. The guide is written with the goal of minimizing the environmental impacts of oil spills; this goal is the basis on which the recommendations are made. Aesthetic and socioeconomic factors are not considered, although these and other factors are often important in spill response.  
1.2 Spill responders have available several means to control or clean up spilled oil. Chemical dispersants should be given equal consideration with other spill countermeasures.  
1.3 This is a general guide only. Oil, as used in this guide, includes crude oils and refined petroleum products. Differences between individual dispersants or between different oil products are not considered. The dispersibility of the oil with the chosen dispersant should be evaluated.  
1.4 The guide is organized by habitat type, for example, small ponds and lakes, rivers and streams, and land. It considers the use of dispersants primarily to protect habitats from impact (or to minimize impacts).  
1.5 This guide applies only to freshwater and other inland environments. It does not consider the direct application of dispersants to subsurface waters.  
1.6 In making dispersant use decisions, appropriate government authorities should be consulted as required by law.  
1.7 This guide does not address getting regulatory approval.  
1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.9 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.  
1.10 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.

  • Guide
    3 pages
    English language
    sale 15% off
  • Guide
    3 pages
    English language
    sale 15% off
ASTM
ASTM C596-23(Test Method)
Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement

SIGNIFICANCE AND USE
4.1 This test method establishes a selected set of conditions of temperature, relative humidity and rate of evaporation of the environment to which a mortar specimen of stated composition shall be subjected for a specified period of time during which its change in length is determined and designated “drying shrinkage.”  
4.2 The drying shrinkage of mortar as determined by this test method has a linear relation to the drying shrinkage of concrete made with the same cement and exposed to the same drying conditions.4 Hence this test method may be used when it is desired to develop data on the effect of a hydraulic cement on the drying shrinkage of concrete made with that cement.
SCOPE
1.1 This test method determines the change in length on drying of mortar bars containing hydraulic cement and graded standard sand.  
1.2 The values stated in SI units are to be regarded as standard. When combined standards are referenced, the selection of measurement system is at the user’s discretion subject to the requirements of the referenced 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. Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure).2  
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 D1751-23(Specification)
Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Asphalt Types)

SCOPE
1.1 This specification covers preformed expansion joint filler having relatively little extrusion and substantial recovery after release from compression.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
Note 1: Attention is called to Specifications D1752 and D994/D994M.  
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
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.

  • Technical specification
    2 pages
    English language
    sale 15% off
  • Technical specification
    2 pages
    English language
    sale 15% off
ASTM
ASTM B637-23(Specification)
Standard Specification for Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service

ABSTRACT
This specification covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stock for high-temperature service. Chemical analysis shall be performed on the alloy and shall conform to the chemical composition requirement in carbon, manganese, silicon, phosphorus, sulfur, chromium, cobalt, molybdenum, columbium, tantalum, titanium, aluminum, zirconium, boron, iron, copper, and nickel. The material shall follow recommended annealing treatment, solution treatment, stabilizing treatment, and precipitation hardening treatment. Tension testing, hardness testing and stress-rupture testing shall be performed on the material and shall comply to the required tensile strength, yield strength, elongation, reduction in area, and Brinell hardness.
SCOPE
1.1 This specification2 covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stock for moderate or high temperature service (Table 1).  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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.

  • Technical specification
    7 pages
    English language
    sale 15% off
  • Technical specification
    7 pages
    English language
    sale 15% off