ASTM G140-02(2014)

Standard Test Method for Determining Atmospheric Chloride Deposition Rate by Wet Candle Method

SIGNIFICANCE AND USE
3.1 This test method is capable of generating quantitative values of atmospheric chloride deposition specifying milligrams of chloride ions per square metre per day (or other units derived from such values).
Note 1: Chlorides in the atmosphere exist as a suspension of liquid droplets or solid particles. They are transported to solid surfaces by gravity, wind, or brownian motions. These transport mechanisms are direction-sensitive so that a vertical cylinder will not necessarily receive the same flux as a horizontal plate, or objects with different sizes and orientations. Therefore, the use of this approach to provide an indication of the deposition of chlorides on objects in atmospheric exposures may not be quantitatively accurate; however, this technique has been successful in classifying the severity of exposure in a variety of marine locations.  
3.2 The sites where samples are to be taken and the sampling time periods should be established. A continuous program of monthly or 30-day exposures is recommended for site characterization. Seasonal monitoring may be performed if there are specific periods of interest.
SCOPE
1.1 This test method covers a wet candle device and its use in measuring atmospheric chloride deposition (amount of chloride salts deposited from the atmosphere on a given area per unit time).  
1.2 Data on atmospheric chloride deposition can be useful in classifying the corrosivity of a specific area, such as an atmospheric test site. Caution must be exercised, however, to take into consideration the season because airborne chlorides vary widely between seasons.  
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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2014
• ICS: 71.040.50 - Physicochemical methods of analysis
• ICS: 77.060 - Corrosion of metals
• Technical Committee: G01 - Corrosion of Metals
• Drafting Committee: G01.04 - Corrosion of Metals in Natural Atmospheric and Aqueous Environments

Relations

• Replaces: ASTM G140-02(2008) - Standard Test Method for Determining Atmospheric Chloride Deposition Rate by Wet Candle Method
• Effective Date: 01-Nov-2014
• Replaced By: ASTM G140-02(2019) - Standard Test Method for Determining Atmospheric Chloride Deposition Rate by Wet Candle Method
• Effective Date: 01-Oct-2019
• Referred By: ASTM G50-20 - Standard Practice for Conducting Atmospheric Corrosion Tests on Metals
• Effective Date: 01-Nov-2014
• Referred By: ASTM G91-11(2018) - Standard Practice for Monitoring Atmospheric SO<inf>2</inf> Deposition Rate for Atmospheric Corrosivity Evaluation
• Effective Date: 01-Nov-2014

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: G140 − 02 (Reapproved 2014)
Standard Test Method for
Determining Atmospheric Chloride Deposition Rate by Wet
1
Candle Method
This standard is issued under the fixed designation G140; 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 grams of chloride ions per square metre per day (or other units
derived from such values).
1.1 This test method covers a wet candle device and its use
in measuring atmospheric chloride deposition (amount of
NOTE 1—Chlorides in the atmosphere exist as a suspension of liquid
droplets or solid particles. They are transported to solid surfaces by
chloride salts deposited from the atmosphere on a given area
gravity, wind, or brownian motions. These transport mechanisms are
per unit time).
direction-sensitive so that a vertical cylinder will not necessarily receive
1.2 Data on atmospheric chloride deposition can be useful
the same flux as a horizontal plate, or objects with different sizes and
orientations. Therefore, the use of this approach to provide an indication
in classifying the corrosivity of a specific area, such as an
ofthedepositionofchloridesonobjectsinatmosphericexposuresmaynot
atmospheric test site. Caution must be exercised, however, to
be quantitatively accurate; however, this technique has been successful in
take into consideration the season because airborne chlorides
classifying the severity of exposure in a variety of marine locations.
vary widely between seasons.
3.2 The sites where samples are to be taken and the
1.3 This standard does not purport to address all of the
sampling time periods should be established. A continuous
safety concerns, if any, associated with its use. It is the
program of monthly or 30-day exposures is recommended for
responsibility of the user of this standard to establish appro-
sitecharacterization.Seasonalmonitoringmaybeperformedif
priate safety and health practices and determine the applica-
there are specific periods of interest.
bility of regulatory limitations prior to use.
4. Apparatus
2. Referenced Documents
4.1 Components—The components needed to construct one
2
2.1 ASTM Standards:
wet candle device are as follows:
D1193Specification for Reagent Water
4.1.1 Erlenmeyer Flask, narrow mouth, 500 mL, (glass or
D4458Test Method for Chloride Ions in Brackish Water,
polypropylene). Other size flasks may be used, but dimensions
Seawater, and Brines
in Fig. 1 will have to be adjusted accordingly.
G92Practice for Characterization ofAtmospheric Test Sites
NOTE 2—Polypropylene flasks are recommended during threat of
2.2 ISO Standard:
freezing weather.
ISO 9225Corrosion of Metals and Alloys. Aggressivity of
4.1.2 Glass Test Tube, general purpose, 16 by 150-mm
Atmospheres—Methods of Measurement of Pollution
length.
3
Data
4.1.3 SolidRubberorNeopreneStopper,No.7,diametertop
38 mm, bottom 30 mm.
3. Significance and Use
4.1.4 Cotton Bandage Gauze, strip, 50 mm wide and ap-
3.1 This test method is capable of generating quantitative
proximately 1500 mm long.
values of atmospheric chloride deposition specifying milli-
NOTE 3—The overall length of the gauze may vary with installation.
4.1.5 Type IV Reagent Water, 1 L, 200 mL CHOH
1
This test method is under the jurisdiction of ASTM Committee G01 on
(CH OH ) (glycerin) and 20 drops CH (CH ) COOH (oc-
2 2 3 2 6
Corrosion of Metals and is the direct responsibility of Subcommittee G01.04 on
tanoic acid) should be added to prevent freezing, if necessary
Atmospheric Corrosion.
(See Specification D1193).
Current edition approved Nov. 1, 2014. Published November 2014. Originally
approvedin1996.Lastpreviouseditionapprovedin2008asG140–02(2008).DOI:
4.1.6 Gloves, vinyl, one pair.
10.1520/G0140-02R14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or NOTE4—Poly(vinylchloride)(PVC)isrecommended.Latexglovesare
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
not acceptable, as their chloride content is reported to be comparable to
Standards volume information, refer to the standard’s Document Summary page on
that of human hands.
the ASTM website.
3
4.2 SupportStand—Asuitablesupportstandshallbeerected
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. at the site where the atmosphere is to be sampled. A treated
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
G140 − 02 (2014)
NOTE 1—Dimensions are in millimetres (mm).
FIG. 1 Wet Candle Chloride Ap
...

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: G140 − 02 (Reapproved 2008) G140 − 02 (Reapproved 2014)
Standard Test Method for
Determining Atmospheric Chloride Deposition Rate by Wet
1
Candle Method
This standard is issued under the fixed designation G140; 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 This test method covers a wet candle device and its use in measuring atmospheric chloride deposition (amount of chloride
salts deposited from the atmosphere on a given area per unit time).
1.2 Data on atmospheric chloride deposition can be useful in classifying the corrosivity of a specific area, such as an
atmospheric test site. Caution must be exercised, however, to take into consideration the season because airborne chlorides vary
widely between seasons.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D4458 Test Method for Chloride Ions in Brackish Water, Seawater, and Brines
G92 Practice for Characterization of Atmospheric Test Sites
2.2 ISO Standard:
3
ISO 9225 Corrosion of Metals and Alloys. Aggressivity of Atmospheres—Methods of Measurement of Pollution Data
3. Significance and Use
3.1 This test method is capable of generating quantitative values of atmospheric chloride deposition specifying milligrams of
chloride ions per square metre per day (or other units derived from such values).
NOTE 1—Chlorides in the atmosphere exist as a suspension of liquid droplets or solid particles. They are transported to solid surfaces by gravity, wind,
or brownian motions. These transport mechanisms are direction-sensitive so that a vertical cylinder will not necessarily receive the same flux as a
horizontal plate, or objects with different sizes and orientations. Therefore, the use of this approach to provide an indication of the deposition of chlorides
on objects in atmospheric exposures may not be quantitatively accurate; however, this technique has been successful in classifying the severity of
exposure in a variety of marine locations.
3.2 The sites where samples are to be taken and the sampling time periods should be established. A continuous program of
monthly or 30-day exposures is recommended for site characterization. Seasonal monitoring may be performed if there are specific
periods of interest.
4. Apparatus
4.1 Components—The components needed to construct one wet candle device are as follows:
4.1.1 Erlenmeyer Flask, narrow mouth, 500 mL, (glass or polypropylene). Other size flasks may be used, but dimensions in Fig.
1 will have to be adjusted accordingly.
NOTE 2—Polypropylene flasks are recommended during threat of freezing weather.
1
This test method is under the jurisdiction of ASTM Committee G01 on Corrosion of Metals and is the direct responsibility of Subcommittee G01.04 on Atmospheric
Corrosion.
Current edition approved May 1, 2008Nov. 1, 2014. Published May 2008November 2014. Originally approved in 1996. Last previous edition approved in 20022008 as
G140–02. –02 (2008). DOI: 10.1520/G0140-02R08.10.1520/G0140-02R14.
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.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
G140 − 02 (2014)
NOTE 1—Dimensions are in millimetres (mm).
FIG. 1 Wet Candle Chloride Apparatus
4.1.2 Glass Test Tube, general purpose, 16 by 150-mm length.
4.1.3 Solid Rubber or Neoprene Stopper, No. 7, diameter top 38 mm, bottom 30 mm.
4.1.4 Cotton Bandage Gauze, strip, 50 mm wide and approximately 1500 mm long.
NOTE 3—The overall length of the gauze may vary with installation.
4.1.5 Type IV Reagent Water, 1 L, 200 mL CHOH (CH OH ) (glycerin) and 20 drops CH (CH ) COOH (
...