ASTM E1506-08

Standard Test Methods for Analysis of Acid-Grade Calcium Fluoride (Fluorspar) (Withdrawn 2016)

SIGNIFICANCE AND USE
Calcium fluoride is available in nature in various forms and purities. A major use for it is in the manufacture of hydrofluoric acid. The test methods listed in 1.1 provide procedures for analyzing calcium fluoride to determine whether it is suitable for this use.
SCOPE
1.1 These test methods cover the chemical analyses of acid-grade calcium fluoride (fluorspar). These test methods appear in the following sections:
  Sections Volatiles as Moisture 6-13 Silica14-22 Assay as Calcium Fluoride (CaF 2)23-32 Soluble Chloride as NaC133-50 Calcium Carbonate51-59 Phosphorus60-69 Arsenic70-78 Mixed Oxides (R2O3)79-87 Sulfide Sulfur88-96
1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.
1.4 Review the current Material Safety Data Sheet (MSDS) for each chemical used in this standard for detailed information concerning toxicity, first-aid procedures, handling, and safety precautions.  
6.1 This test method covers the determination of volatiles as percent moisture.  
14.1 This test method covers the determination of percent silica.  
23.1 This test method covers the determination of assay as percent calcium fluoride (CaF2).  
51.1 This test method covers the determination of calcium carbonate in the range from 0 to 2 %.  
60.1 This test method covers the determination of total phosphorus.  
70.1 This test method covers the determination of total arsenic.  
79.1 This test method covers the determination of percent mixed oxides (R2O3).  
88.1 This test method covers the determination of sulfide sulfur in the range from 0.001 to 0.2 %.
WITHDRAWN RATIONALE
These test methods cover the chemical analyses of acid-grade calcium fluoride (fluorspar).
Formerly under the jurisdiction of Committee D16 on Aromatic Hydrocarbons and Related Materials, this test method was withdrawn in November 2016. This standard is being withdrawn without replacement due to its limited use by industry.

General Information

• Status: Withdrawn
• Publication Date: 14-Dec-2008
• Withdrawal Date: 03-Nov-2016
• ICS: 71.060.50 - Salts
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals

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: E1506 − 08
StandardTest Methods for
1
Analysis of Acid-Grade Calcium Fluoride (Fluorspar)
This standard is issued under the fixed designation E1506; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 3. Significance and Use
1.1 These test methods cover the chemical analyses of 3.1 Calcium fluoride is available in nature in various forms
acid-grade calcium fluoride (fluorspar). These test methods and purities. A major use for it is in the manufacture of
appear in the following sections: hydrofluoric acid. The test methods listed in 1.1 provide
procedures for analyzing calcium fluoride to determine
Sections
Volatiles as Moisture 6–13
whether it is suitable for this use.
Silica 14–22
Assay as Calcium Fluoride (CaF ) 23–32
2
4. Reagents
Soluble Chloride as NaC1 33–50
Calcium Carbonate 51–59
4.1 Purity of Reagents—Reagent grade chemicals shall be
Phosphorus 60–69
used in all tests. Unless otherwise indicated, it is intended that
Arsenic 70–78
all reagents shall conform to the specifications of the Commit-
Mixed Oxides (R O ) 79–87
2 3
Sulfide Sulfur 88–96
tee onAnalytical Reagents of theAmerican Chemical Society,
4
where such specifications are available. Other grades may be
1.2 The values stated in SI units are to be regarded as the
used, provided it is first ascertained that the reagent is of
standard. No other units of measurement are included in this
sufficiently high purity to permit its use without lessening the
standard.
accuracy of the determination.
1.3 This standard does not purport to address all of the
4.2 Purity of Water—Unless otherwise indicated, references
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- to water shall be understood to mean Type II or Type III
reagent water conforming to Specification D1193.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Sampling
1.4 Review the current Material Safety Data Sheet (MSDS)
5.1 Sampling of calcium fluoride is not within the scope of
foreachchemicalusedinthisstandardfordetailedinformation
concerning toxicity, first-aid procedures, handling, and safety these test methods. See the appropriate sections of Practice
E300 for sampling procedures.
precautions.
VOLATILES AS MOISTURE
2. Referenced Documents
2
2.1 ASTM Standards: 6. Scope
D1193Specification for Reagent Water
6.1 Thistestmethodcoversthedeterminationofvolatilesas
E180Practice for Determining the Precision of ASTM
percent moisture.
Methods for Analysis and Testing of Industrial and Spe-
3
cialty Chemicals (Withdrawn 2009) 7. Summary of Test Method
E300Practice for Sampling Industrial Chemicals
7.1 The sample is dried in an air oven at 105 to 110°C, and
the mass loss is calculated as percent moisture.
1
These test methods are under the jurisdiction of ASTM Committee D16 on
8. Apparatus
Aromatic Hydrocarbons and Related Chemicals and are the direct responsibility of
Subcommittee D16.16 on Industrial and Specialty Product Standards. 8.1 Top-Loading Balance, capable of weighing 1000 g to
Current edition approved Dec. 15, 2008. Published January 2009. Originally
the nearest 0.01 g.
approved in 1994. Last previous edition approved in 2003 as E1506–97 (2003).
DOI: 10.1520/E1506-08.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Reagent Chemicals, American Chemical Society Specifications, American
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Standards volume information, refer to the standard’s Document Summary page on listed by the American Chemical Society, see Analar Standards for Laboratory
the ASTM website. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
3
The last approved version of this historical standard is referenced on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
www.astm.org. MD.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E1506 − 08
TABLE 1 Volatiles as Moisture Checking Limits for Duplicates
8.2 Sample Pan, stainless steel or borosilicate glass, 152 by
152 by 51 mm deep. Volatiles Level, Standard Degrees of 95 % Limit, %
% Deviation Freedom Absolute
8.3 Cooling Rack, wood or metal, able to allow circulation
6 0.0257 18 0.072
9 0.0822 18 0.230
of air
...