ASTM C1920-23
(Practice)Standard Practice for Cleaning of Vitrified Clay Sanitary Sewer Pipelines
Standard Practice for Cleaning of Vitrified Clay Sanitary Sewer Pipelines
SIGNIFICANCE AND USE
4.1 Hydraulic cleaning methods include equipment that uses water and water velocity to clean the invert and walls of the vitrified clay sewer pipe.
4.2 The practice of high-velocity sewer cleaning is best described as a hydraulic cleaning method that uses water pressure to remove obstructions and deposits in sewers or storm drains.
4.3 There are different configurations of high-velocity sewer cleaning machines. These units have the capability of generating variable water pressures up to 3500 psi (24 MPa) and variable flow rates of 50-125 gal per min (gpm) (180-473 L per min).
4.4 The water tank capacity on these units varies from 1000-1500 gal (3785-5678 L).
4.5 The hose lengths vary between 500 and 1000 ft (152 and 305 m) in length with a diameter of 3/4- 11/4 in. NPT.
4.6 There are number of different nozzles and tools that may be used during the cleaning process.
4.7 Some high-velocity sewer cleaners have a vacuum conveyance system that use large fans or positive displacement vacuum pumps for material removal capabilities. With this type of system, material can be vacuumed from the manhole into a debris tank as it is brought back with the jet or tool and taken to a disposal area. These systems can be either trailer or truck mounted and are generally known as combination machines.
4.8 The Occupational Safety and Health Administration (OSHA) has set guidelines for the safe removal of hazardous and nonhazardous substances as stated in OSHA Section 5 of Public Law 91-596; OSHA 29 USC 654; 29 CFR 1910.120; as well as DOT CFR Parts 106-7, 171-180, and 390-397.
SCOPE
1.1 This practice covers the personnel requirements, operator training, operating procedures, and recommended equipment performance/design for the proper operation of pressure water-jet cleaning and cutting equipment as normally used by municipalities and contractors tasked with operations, maintenance, cleaning, and pre-rehabilitation cleaning work of vitrified clay mainline sewer pipe.
1.2 The term “high-pressure water jetting” covers all water jetting, including the use of jets and hydromechanical tooling at pressures above 2000 psig (0.69 MPa).
1.3 This practice covers the “high-pressure water jetting” of vitrified clay pipe and should not be applied to other pipe and pipe lining materials without evaluating the recommended cleaning procedure from the manufacturer to avoid damage.
1.4 Units—The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.
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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.
Designation: C1920 − 23
Standard Practice for
1
Cleaning of Vitrified Clay Sanitary Sewer Pipelines
This standard is issued under the fixed designation C1920; 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 Federal Standards:
DOT CFR 49 Parts 106-107, 171-180, and 390-397 HAZ-
1.1 This practice covers the personnel requirements, opera-
MAT Transportation Regulations for Domestic Shipping
tor training, operating procedures, and recommended equip-
3
and Transporting of Hazardous Materials
ment performance/design for the proper operation of pressure
4
OSHA Public Law 91-596 Section 5
water-jet cleaning and cutting equipment as normally used by
4
OSHA 29 USC 654 Duties of Employers and Employees
municipalities and contractors tasked with operations,
29 CFR 1910.120 Hazardous waste operations and emer-
maintenance, cleaning, and pre-rehabilitation cleaning work of
3
gency response
vitrified clay mainline sewer pipe.
US EPA Optimizing Operation, Maintenance and Rehabili-
1.2 The term “high-pressure water jetting” covers all water 5
tation of Sanitary Sewer Collection Systems
jetting, including the use of jets and hydromechanical tooling 6
Vitrified Clay Pipe Engineering Manual, 2017
at pressures above 2000 psig (0.69 MPa).
Vitrified Clay Pipe Operations & Maintenance Handbook,
6
1.3 This practice covers the “high-pressure water jetting” of
2020
vitrified clay pipe and should not be applied to other pipe and
pipe lining materials without evaluating the recommended
3. Terminology
cleaning procedure from the manufacturer to avoid damage.
3.1 Definitions:
1.4 Units—The values stated in inch-pound units are to be
3.1.1 high velocity sewer cleaner, n—these portable units
regarded as the standard. The values given in parentheses are
have the capability of generating variable water pressures
mathematical conversions to SI units that are provided for
through a hose up to 3500 psi (24 MPa) and variable flow rates
information only and are not considered standard.
of 50-125 gal per min (gpm) (180-473 L per min).
1.5 This standard does not purport to address all of the
3.1.2 boom, n—telescopic vacuum tube mounted on a sewer
safety concerns, if any, associated with its use. It is the
cleaning truck chassis.
responsibility of the user of this standard to establish appro-
3.1.3 bucket, n—a special device designed to be pulled
priate safety, health, and environmental practices and deter-
along a sewer for the removal of debris from the sewer.
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
3.1.3.1 Discussion—The bucket has one end open with the
dance with internationally recognized principles on standard- opposite end having a set of jaws. When pulled from the jaw
ization established in the Decision on Principles for the
end, the jaws are automatically opened. When pulled from the
Development of International Standards, Guides and Recom- other end, the jaws close. In operation, the bucket is pulled into
mendations issued by the World Trade Organization Technical
the debris from the jaw end and to a point where some of the
Barriers to Trade (TBT) Committee. debris has been forced into the bucket. The bucket is then
pulled out of the sewer from the other end, causing the jaws to
2. Referenced Documents
close and retain the debris. Once removed from the manhole,
2
2.1 CDC Standard: the bucket is emptied and the process repeated.
Guidance for Reducing Health Risks to Workers Handling
Human Waste or Sewage
3
Available from U.S. Government Publishing Office (GPO), 732 N. Capitol St.,
1
This test method is under the jurisdiction of ASTM Committee C04 on Vitrified NW, Washington, DC 20401, http://www.gpo.gov.
4
Clay Pipe and is the direct responsibility of Subcommittee C04.20 on Methods of Available from Occupational Safety and Health Administration (OSHA), 200
Test and Specifications. Constitution Ave., NW, Washington, DC 20210, http://www.osha.gov.
5
Current edition approved Oct. 1, 2023. Published October 2023. Originally Available from United States Environmental Protection Agency (EPA), William
approved in 2021. Last previous edition approved in 2021 as C1920–21. DOI: Jefferson Clinton Bldg., 1200 Pennsylvania Ave., NW, Washington, DC 20460,
10.1520/C1920-23. http://www.epa.gov.
6
2
Available from Centers for Disease Control and Prevention (CDC), 1600 Available from National Clay Pipe Institute,
...
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: C1920 − 21 C1920 − 23
Standard Practice for
1
Cleaning of Vitrified Clay Sanitary Sewer Pipelines
This standard is issued under the fixed designation C1920; 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 practice covers the personnel requirements, operator training, operating procedures, and recommended equipment
performance/design for the proper operation of pressure water-jet cleaning and cutting equipment as normally used by
municipalities and contractors concernedtasked with operations, maintenance and maintenance, cleaning, and pre-rehabilitation
cleaning work of vitrified clay mainline sewer pipe.
1.2 The term “high-pressure water jetting” covers all water jetting, including the use of jets and hydromechanical tooling at
pressures above 2000 psig (0.69 MPa).
1.3 This practice covers the “high-pressure water jetting” of vitrified clay pipe and should not be applied to other pipe and pipe
lining materials without evaluating the recommended cleaning procedure from the manufacturer to avoid damage.
1.4 Units—The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are
mathematical conversions to SI units that are provided for information only and are not considered 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.
2. Referenced Documents
2
2.1 CDC Standard:
Guidance for Reducing Health Risks to Workers Handling Human Waste or Sewage
2.2 Federal Standards:
DOT CFR 49 Parts 106-107, 171-180, and 390-397 HAZMAT Transportation Regulations for Domestic Shipping and
3
Transporting of Hazardous Materials
4
OSHA Public Law 91-596 Section 5
4
OSHA 29 USC 654 Duties of Employers and Employees
3
29 CFR 1910.120 Hazardous waste operations and emergency response
1
This test method is under the jurisdiction of ASTM Committee C04 on Vitrified Clay Pipe and is the direct responsibility of Subcommittee C04.20 on Methods of Test
and Specifications.
Current edition approved Dec. 1, 2021Oct. 1, 2023. Published December 2021October 2023. Originally approved in 2021. Last previous edition approved in 2021 as
C1920–21. DOI: 10.1520/C1920-21.10.1520/C1920-23.
2
Available from Centers for Disease Control and Prevention (CDC), 1600 Clifton Rd., Atlanta, GA 30329-4027, http://www.cdc.gov.
3
Available from U.S. Government Publishing Office (GPO), 732 N. Capitol St., NW, Washington, DC 20401, http://www.gpo.gov.
4
Available from Occupational Safety and Health Administration (OSHA), 200 Constitution Ave., NW, Washington, DC 20210, http://www.osha.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1920 − 23
5
US EPA Optimizing Operation, Maintenance and Rehabilitation of Sanitary Sewer Collection Systems
6
Vitrified Clay Pipe Engineering Manual, 2017
6
Vitrified Clay Pipe Operations & Maintenance Handbook, 2020
3. Terminology
3.1 Definitions:
3.1.1 high velocity sewer cleaner, n—these portable units have the capability of generating variable water pressures through a hose
up to 3500 psi (24 MPa) and variable flow rates of 50-125 gal per min (gpm) (180-473 L per min).
3.1.2 boom, n—telescopic vacuum tube mounted on a sewer cleaning truck chassis.
3.1.3 bucket, n—a special device designed to be pulled along a sewer for the removal of debris from the sewer.
3.1.3.1 Discussion—
The bucket has one end open with the opposite end having a set of jaws. When pulled from the jaw end, the jaws are automatically
opened. When pulled from the other end, the jaws close. In operation, the bucket is pulled into the debris from the jaw end and
to a point where some of the debris has been forced int
...
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