ASTM G210-13(2018)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: G210 − 13 (Reapproved 2018)
Standard Practice for
Operating the Severe Wastewater Analysis Testing
Apparatus
This standard is issued under the fixed designation G210; 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This practice covers the basic apparatus, procedures,
Barriers to Trade (TBT) Committee.
and conditions required to create and maintain the severe
wastewater analysis testing apparatus used for testing a pro-
2. Referenced Documents
tective coating or lining.
1.2 This apparatus may simulate the pertinent attributes of a 2.1 ASTM Standards:
typical domestic severe wastewater headspace (sewer) envi- A36/A36M Specification for Carbon Structural Steel
ronment. The testing chamber comprises two phases: (1) a C307 Test Method for Tensile Strength of Chemical-
liquid phase containing a prescribed acid and saline solution,
Resistant Mortar, Grouts, and Monolithic Surfacings
and (2) a vapor phase consisting of air, humidity, and concen- C387/C387M Specification for Packaged, Dry, Combined
trated sewer gas (Note 1). The temperature of the test chamber
Materials for Concrete and High Strength Mortar
is elevated to create accelerated conditions and reaction rates.
C580 Test Method for Flexural Strength and Modulus of
Elasticity of Chemical-Resistant Mortars, Grouts, Mono-
NOTE 1—For the purposes of this practice, sewer gas is composed of
lithic Surfacings, and Polymer Concretes
hydrogen sulfide, carbon dioxide, and methane gas.
D610 Practice for Evaluating Degree of Rusting on Painted
1.3 Caution—This practice can be extremely hazardous.
Steel Surfaces
All necessary precautions need to be taken when working with
D638 Test Method for Tensile Properties of Plastics
sewer gas, sulfuric acid, and a glass tank. It is highly
D660 Test Method for Evaluating Degree of Checking of
recommended that a professional testing laboratory experi-
Exterior Paints
enced in testing with hydrogen sulfide, carbon dioxide, and
D661 Test Method for Evaluating Degree of Cracking of
methane gases perform this practice.
Exterior Paints
1.4 The values stated in inch-pound units are to be regarded
D714 Test Method for Evaluating Degree of Blistering of
as standard. The values given in parentheses are mathematical
Paints
conversions to SI units that are provided for information only
D790 Test Methods for Flexural Properties of Unreinforced
and are not considered standard.
and Reinforced Plastics and Electrical Insulating Materi-
1.5 This standard does not purport to address all of the
als
safety concerns, if any, associated with its use. It is the
D2370 Test Method for Tensile Properties of Organic Coat-
responsibility of the user of this standard to establish appro-
ings
priate safety, health, and environmental practices and deter-
D4541 Test Method for Pull-Off Strength of Coatings Using
mine the applicability of regulatory limitations prior to use.
Portable Adhesion Testers
Some specific hazards statements are given in Section 8 on
D6677 Test Method for Evaluating Adhesion by Knife
Hazards.
D7091 Practice for Nondestructive Measurement of Dry
1.6 This international standard was developed in accor-
Film Thickness of Nonmagnetic Coatings Applied to
dance with internationally recognized principles on standard-
Ferrous Metals and Nonmagnetic, Nonconductive Coat-
ization established in the Decision on Principles for the
ings Applied to Non-Ferrous Metals
G193 Terminology and Acronyms Relating to Corrosion
This practice is under the jurisdiction of ASTM Committee G01 on Corrosion
of Metals and is the direct responsibility of Subcommittee G01.05 on Laboratory
Corrosion Tests. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2018. Published November 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2013. Last previous edition approved in 2013 as G210 – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/G0210-13R18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
G210 − 13 (2018)
2.2 ISO Standards: agreed upon between the client and testing facility. Any
ISO 16773 Paints- and Varnishes- Electrochemical Imped- deviations from this practice shall be reported.
ance Spectroscopy (EIS) on High Impedance Coated
Samples. Part 1: Terms and Definitions
5. Significance and Use
ISO 16773 Paints- and Varnishes- Electrochemical Imped-
5.1 Domestic wastewater headspace environments are cor-
ance Spectroscopy (EIS) on High Impedance Coated
rosive due to the presence of sewer gases and sulfuric acid
Samples. Part 2: Collection of Data 5
generated during the biogenic sulfide corrosion process. This
ISO 16773 Paints- and Varnishes- Electrochemical Imped-
operating procedure provides an accelerated exposure to sewer
ance Spectroscopy (EIS) on High Impedance Coated
gases and concentration of sulfuric acid commonly produced
Samples. Part 3: Processing and Analysis of Data from
by bacteria within these sewer environments.
Dummy Cells
5.2 The results obtained by the use of this practice can be a
means for estimating the protective barrier qualities of a
3. Terminology
protective coating or lining for use in severe sewer conditions.
3.1 Definitions of Terms Specific to This Standard:
5.3 Some protective coatings or linings may not withstand
3.1.1 domestic wastewater, n—wastewater discharged from
the exposure temperature specified in this practice but have
residences and from commercial, institutional, and similar
demonstrated satisfactory performance in actual sewer
facilities.
exposures, which are at lower temperatures.
3.1.2 sewer headspace, n—the air space between the water
surface and the top of the pipe (crown) or other enclosed
6. Apparatus
structure.
6.1 The testing apparatus consists of the following:
3.2 For definitions of terms used in this practice, see
6.1.1 Glass Tank—Minimum diameter 16 by 12 in. (40 by
Terminology G193.
30 cm) tall. The glass tank, when fitted with a polypropylene
lid (tank cover) and elastomeric seal, creates an air-tight test
4. Summary of Practice
chamber. The glass tank is inert to the aggressive reagents at
4.1 The corrosion protection of steel, ductile iron, and
the testing temperature. The glass tank shall be transparent to
concrete by a protective coating or lining may be altered by
permit visual examination of the test specimens throughout
exposure to sewer gases and by the composition of the
specified testing duration.
corrosive reagents found in headspace environments of domes-
6.1.2 Polypropylene Lid—Octagon or round shaped, mini-
tic wastewater conveyance and treatment structures.
mum 1 in. (2.54 cm) thick by 18 in. (46 cm) span. The
4.2 This practice provides a controlled corrosive
polypropylene lid has a 1.5 in. (3.81 cm) diameter center port
environment, which has been utilized to produce a simulated
to accommodate the shaft of the sample carousel. The shaft
severe sewer headspace condition by wetting the coated
slides through an O-ring seal which is secured and tensioned
samples in a cyclic fashion with a corrosive solution and then
with a polypropylene fitting (Note 2). The shaft slides easily up
exposing the samples to air containing sewer gas. This condi-
and down through the O-ring seal while preventing the release
tion is responsible for reducing the barrier properties of
of test gases. Silicone grease lubricant can be used to facilitate
protective coatings and linings.
movement of the shaft.
4.3 Test specimens are positioned on a carousel and placed
NOTE 2—Polypropylene has been found to be an acceptable material for
inside an airtight testing apparatus (chamber) maintained at a this service. Other materials, such as polytetrafluoroethylene (PTFE) or
polyetheretherketone (PEEK) may also provide acceptable service.
temperature of 150 6 5°F (65 6 3°C). The chamber contains
a prescribed aqueous solution (liquid phase) at the bottom and
6.1.2.1 The polypropylene lid is designed with two ports for
a headspace (vapor phase) containing sewer gas. The test
fittings, which accommodate inlet and outlet lines.
specimens are immersed into liquid phase for a period of 15
6.1.2.2 The side of the polypropylene lid which faces into
min each. After immersion, the specimens are exposed to the
the tank has a circular, shallow 1-in. (2.54-cm) wide groove.
vapor phase the balance of the time. This constitutes one
The groove accommodates a suitable corrosion resistant elas-
complete cycle with three cycles occurring per day. This cyclic
tomeric seal (gasket) required to seal the lid of the glass tank.
exposure continues for a period of 28 days.
6.1.2.3 The polypropylene lid also includes eight equally-
spaced holes along the outer edge to accommodate eight
4.4 The specified operating temperature, aqueous solution,
sewer gases, and duration parameters are considered the threaded rod fasteners with wing nuts, nuts, and washers. The
eight threaded rods connect the polypropylene lid to a solid,
standard for the purposes of this practice. The specifications
may be adjusted to replicate specific environments if mutually chemical resistant base plate made of laminated wood or
3 5
Available from International Organization for Standardization (ISO), 1, ch. de O’Dea, V., “Understanding Biogenic Sulfide Corrosion,” Materials
la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org. Performance, November 2007, pp. 36–39.
4 6
O’Dea, V. et al., “Testing Permeation Resistance in Coatings for Wastewater O’Dea, V. et al, “Assessing Coatings & Linings for Wastewater: Accelerated
Structures,” Journal of Protective Coatings and Linings, September 2010, pp. Test Evaluates Resistance to Severe Exposures,” Journal of Protective Coatings and
16–28. Linings, April 2008, pp. 44–57.
G210 − 13 (2018)
equivalent materials, located under the glass tank, hence 6.1.4.2 Gas supply line includes a polypropylene stopcock
clamping the lid to the glass tank, thereby creating an air-tight
valve with low-friction plug of PTFE and a polypropylene gas
testing chamber. check valve with a suitable fluoroelastomer (FKM)-coated
6.1.3 Specimen Carousel—Constructed of polypropylene
diaphragm.
(or other suitable corrosion-resistant material) to accommodate
6.1.5 Air Purge Inlet—An external flexible and resilient
the various types of samples. Coated steel specimens will sit in
polypropylene or polyethylene fresh air supply line connects
slots and rest vertically, arranged radially (Fig. 1). Coated
the air pump to the tank through a tee into the Gas Inlet line.
concrete specimens will sit in slots oriented vertically. Cast
6.1.5.1 Air supply line includes a polypropylene stopcock
shapes and free films will be oriented either vertically or
valve with low-friction plug of PTFE and a polypropylene gas
horizontally, depending upon their dimensions.
check valve with FKM-coated diaphragm.
6.1.3.1 The specimen carousel consists of a tray with a
6.1.6 Gas Outlet—An external flexible and resilient poly-
perpendicular central shaft, which facilitates raising and low-
propylene or polyethylene line from the tank cover with a
ering of the carousel within the chamber to the liquid phase
polypropylene connector is connected to caustic scrubbers to
(lowered position) or vapor phase (raised position).
capture H S from the effluent gases.
6.1.3.2 When the carousel is in the liquid phase (lowered
position) the specimen carousel, including the test specimens,
6.1.6.1 Outlet line includes a check valve, a polypropylene
must be completely immersed in the aqueous solution.
stopcock valve with low-friction plug of PTFE, a pressure
6.1.3.3 When the carousel is in the raised position, it is
relief valve (0.5 psi or 3.4 kPa), and a pressure gauge (0 to 1.5
locked in place with a retaining pin assembly outside the top of
psig range or 0 to 10 kPa) teed into the gas outlet line using
the oven. The aqueous solution must drain away from the test
PTFE coated isolation diaphragm. An air pump is teed into the
specimens through drain holes in the carousel.
line to the caustic scrubbers to facilitate sewer gas removal
6.1.4 Gas Inlet—A flexible and resilient polypropylene or
from the scrubber lines.
polyethylene gas supply line connects the sewer gas supply to
6.1.6.2 Secondary Containment—A polypropylene tray of
a polypropylene inlet fitting on the tank cover. The inlet fitting
suitable volume may be placed under the test chamber as an
assembly accommodates a polypropylene extension tube,
additional precaution against acid spillage.
which runs to the bottom of the chamber. The vertical
6.1.7 Oven—Convection (forced air) oven of sufficient ca-
extension tube allows the sewer gas mixture to be sparged
pacity to accommodate the test chamber and be capable of
through the aqueous solution.
maintaining a temperature of 150 6 5°F (65 6 3°C) through-
6.1.4.1 Gas supply line includes a gas flow controller and
out the duration of the test exposure. This ensures a uniform
indicator (for example, rotameter) to measure instantaneous
temperature throughout the chamber for the testing duration.
flow rate.
The top of the oven must have a 3-in. (75-mm) through-wall
opening to accommodate the inlet and outlet gas lines and the
shaft of the specimen carousel and its movement.
6.1.8 Air Pump—Variable-flow air pump to purge the test
chamber and outlet lines of the hydrogen sulfide gas (and other
sewer gases) at the completion of the exposure time. Pump
delivery pressure and pressure relief valve should be sized to
avoid accidentally over-pressurizing the glass tank.
6.1.8.1 An air flow rate of at least 1.5 litres per minute
(L/min) is recommended.
6.1.9 Caustic Scrubbers—Capable of removing H S from
the exhaust test gas. A typical scrubber consists of a 4-L
polypropylene carboy, half filled with 15 % sodium hydroxide
(NaOH). Bubble dispersion media is added to the carboy.
6.1.9.1 “Percent” is defined as grams of solute per volume
of solution. 15 % NaOH contains 150 g of sodium hydroxide
per litre of solution, which is the same as 3.75 mol of sodium
hydroxide per litre of solution.
6.1.9.2 Carboy cap is equipped with polypropylene fittings
which accommodate a 0.25 in. (6.35 mm) polyethylene inlet
dip tu
...