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ASTM C1227-09

(Specification)

Standard Specification for Precast Concrete Septic Tanks

Standard Specification for Precast Concrete Septic Tanks

ABSTRACT
This specification covers monolithicor sectional precast concrete septic tanks. The following materials shall be used for manufacturing concrete septic tank: cement, aggregates, water, admixtures, steel reinforcement, concrete mixtures, forms, concrete placement, fibers, and sealants. The precast concrete sections shall be cured. Structural design of the septic tanks shall be by calculation or by performance. Concrete strength, reinforcing steel placement, and openings shall also be considered in the design. The physical design requirements include: capacity, shape, compartments, influent and effluent pipes, baffles and outlet devices, and openings in top slab. The following tests shall also be done: proof testing, leakage testing, vacuum testing, and water-pressure testing.
SCOPE
1.1 This specification covers design requirements, manufacturing practices, and performance requirements for monolithic or sectional precast concrete septic tanks.
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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Dec-2008
ICS
13.060.30 - Sewage water
Technical Committee
C27 - Precast Concrete Products
Drafting Committee
C27.30 - Water and Wastewater Containers
Current Stage
Ref Project

Relations

Replaces
ASTM C1227-08 - Standard Specification for Precast Concrete Septic Tanks
Effective Date
01-Jan-2009
Replaced By
ASTM C1227-10 - Standard Specification for Precast Concrete Septic Tanks
Effective Date
15-Apr-2010
Referred By
ASTM C1719-11(2017) - Standard Test Method for Installed Precast Concrete Tanks and Accessories by the Negative Air Pressure (Vacuum) Test Prior to Backfill
Effective Date
01-Jan-2009
Referred By
ASTM C1644-06(2017) - Standard Specification for Resilient Connectors Between Reinforced Concrete On-Site Wastewater Tanks and Pipes
Effective Date
01-Jan-2009

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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: C1227 – 09
Standard Specification for
1
Precast Concrete Septic Tanks
This standard is issued under the fixed designation C1227; 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 C125 Terminology Relating to Concrete and Concrete Ag-
gregates
1.1 This specification covers design requirements, manufac-
C150 Specification for Portland Cement
turing practices, and performance requirements for monolithic
C231 Test Method for Air Content of Freshly Mixed Con-
or sectional precast concrete septic tanks.
crete by the Pressure Method
1.2 The values stated in inch-pound units are to be regarded
C260 Specification for Air-Entraining Admixtures for Con-
as standard. The values given in parentheses are mathematical
crete
conversions to SI units that are provided for information only
C330 Specification for Lightweight Aggregates for Struc-
and are not considered standard.
tural Concrete
1.3 This standard does not purport to address all of the
C494/C494M Specification for Chemical Admixtures for
safety concerns, if any, associated with its use. It is the
Concrete
responsibility of the user of this standard to establish appro-
C595 Specification for Blended Hydraulic Cements
priate safety and health practices and determine the applica-
C618 Specification for Coal Fly Ash and Raw or Calcined
bility of regulatory limitations prior to use.
Natural Pozzolan for Use in Concrete
2. Referenced Documents
C685/C685M Specification for Concrete Made byVolumet-
2
ric Batching and Continuous Mixing
2.1 ASTM Standards:
C890 Practice for Minimum Structural Design Loading for
A82/A82M Specification for SteelWire, Plain, for Concrete
Monolithic or Sectional Precast Concrete Water and
Reinforcement
Wastewater Structures
A185/A185M Specification for Steel Welded Wire Rein-
C990 Specification for Joints for Concrete Pipe, Manholes,
forcement, Plain, for Concrete
and Precast Box Sections Using Preformed Flexible Joint
A496/A496M Specification for Steel Wire, Deformed, for
Sealants
Concrete Reinforcement
C1116/C1116M Specification for Fiber-Reinforced Con-
A497/A497M Specification for Steel Welded Wire Rein-
crete
forcement, Deformed, for Concrete
3
2.2 ACI Standard:
A615/A615M Specification for Deformed and Plain
ACI 318 Building Code Requirements for Reinforced Con-
Carbon-Steel Bars for Concrete Reinforcement
crete
A706/A706M Specification for Low-Alloy Steel Deformed
4
2.3 NSF/ANSI Standard:
and Plain Bars for Concrete Reinforcement
NSF/ANSI 46–2005 Evaluation of Components and De-
A996/A996M Specification for Rail-Steel and Axle-Steel
vices used in Wastewater Treatment Systems
Deformed Bars for Concrete Reinforcement
C33 Specification for Concrete Aggregates
3. Terminology
C39/C39M Test Method for Compressive Strength of Cy-
3.1 For definitions of terms relating to concrete, see Termi-
lindrical Concrete Specimens
nology C125.
C94/C94M Specification for Ready-Mixed Concrete
3.2 Definitions of Terms Specific to This Standard:
3.2.1 access opening, n—hole in the top slab used to gain
1
This specification is under the jurisdiction ofASTM Committee C27 on Precast
access to the inside of the tank for the purpose of cleaning and
ConcreteProductsandisthedirectresponsibilityofSubcommitteeC27.30onWater
removing sludge without a person actually having to enter the
and Wastewater Containers.
tank.
Current edition approved Jan. 1, 2009. Published January 2009. Originally
approved in 1993. Last previous edition approved in 2008 as C1227 – 08. DOI:
10.1520/C1227-09.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican Concrete Institute (ACI), P.O. Box 9094, Farmington
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Hills, MI 48333-9094, http://www.aci-int.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 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 ----------------------
C1227 – 09
3.2.2 air scum volume, n—number of cubic inches (centi- which the liquid effluent, which is comparatively free from
metres) in the space between the liquid surface and the settleable and floating solids, is then discharged.
underside of the top slab. 3.2.24 sludge layer, n—heavier waste solids that separate
and settle at the bottom of a tank.
3.2.3 baffle, n—device placed in a tank to dissipate energy,
3.2.25 te
...

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:C1227–08 Designation: C 1227 – 09
Standard Specification for
1
Precast Concrete Septic Tanks
This standard is issued under the fixed designation C 1227; 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 specification covers design requirements, manufacturing practices, and performance requirements for monolithic or
sectional precast concrete septic tanks.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A 82/A 82M Specification for Steel Wire, Plain, for Concrete Reinforcement
A 185/A 185M Specification for Steel Welded Wire Reinforcement, Plain, for Concrete
A 496/A 496M Specification for Steel Wire, Deformed, for Concrete Reinforcement
A 497/A 497M Specification for Steel Welded Wire Reinforcement, Deformed, for Concrete
A 615/A 615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A 706/A 706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement
A 996/A 996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement
C33 Specification for Concrete Aggregates
C 39/C 39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C 94/C 94M Specification for Ready-Mixed Concrete
C 125 Terminology Relating to Concrete and Concrete Aggregates
C 150 Specification for Portland Cement
C 231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C 260 Specification for Air-Entraining Admixtures for Concrete
C 330 Specification for Lightweight Aggregates for Structural Concrete
C 494/C 494M Specification for Chemical Admixtures for Concrete
C 595 Specification for Blended Hydraulic Cements
C 618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C 685/C 685M Specification for Concrete Made by Volumetric Batching and Continuous Mixing
C 890 Practice for Minimum Structural Design Loading for Monolithic or Sectional Precast Concrete Water and Wastewater
Structures
C 990 Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants
C 1116/C 1116M Specification for Fiber-Reinforced Concrete
3
2.2 ACI Standard:
ACI 318 Building Code Requirements for Reinforced Concrete
4
2.3 NSF/ANSI Standard:
1
This specification is under the jurisdiction of ASTM Committee C27 on Precast Concrete Products and is the direct responsibility of Subcommittee C27.30 on Water
and Wastewater Containers.
Current edition approved Jan. 15, 2008.1, 2009. Published February 2008.January 2009. Originally approved in 1993. Last previous edition approved in 20072008 as
C1227–07c. C 1227 – 08.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094, http://www.aci-int.org.
4
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 ----------------------
C1227–09
NSF/ANSI 46–2005 Evaluation of Components and Devices used in Wastewater Treatment Systems
3. Terminology
3.1 For definitions of terms relating to concrete, see Terminology C 125.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 access opening, n—hole in the top slab used to gain access to the inside of the tank for the purpose of cleaning and
removing sludge without
...

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:C1227–08 Designation: C 1227 – 09
Standard Specification for
1
Precast Concrete Septic Tanks
This standard is issued under the fixed designation C 1227; 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 specification covers design requirements, manufacturing practices, and performance requirements for monolithic or
sectional precast concrete septic tanks.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A 82/A 82M Specification for Steel Wire, Plain, for Concrete Reinforcement
A 185/A 185M Specification for Steel Welded Wire Reinforcement, Plain, for Concrete
A 496/A 496M Specification for Steel Wire, Deformed, for Concrete Reinforcement
A 497/A 497M Specification for Steel Welded Wire Reinforcement, Deformed, for Concrete
A 615/A 615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A 706/A 706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement
A 996/A 996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement
C33 Specification for Concrete Aggregates
C 39/C 39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C 94/C 94M Specification for Ready-Mixed Concrete
C 125 Terminology Relating to Concrete and Concrete Aggregates
C 150 Specification for Portland Cement
C 231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C 260 Specification for Air-Entraining Admixtures for Concrete
C 330 Specification for Lightweight Aggregates for Structural Concrete
C 494/C 494M Specification for Chemical Admixtures for Concrete
C 595 Specification for Blended Hydraulic Cements
C 618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C 685/C 685M Specification for Concrete Made by Volumetric Batching and Continuous Mixing
C 890 Practice for Minimum Structural Design Loading for Monolithic or Sectional Precast Concrete Water and Wastewater
Structures
C 990 Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants
C 1116/C 1116M Specification for Fiber-Reinforced Concrete
3
2.2 ACI Standard:
ACI 318 Building Code Requirements for Reinforced Concrete
4
2.3 NSF/ANSI Standard:
1
This specification is under the jurisdiction of ASTM Committee C27 on Precast Concrete Products and is the direct responsibility of Subcommittee C27.30 on Water
and Wastewater Containers.
Current edition approved Jan. 15, 2008.1, 2009. Published February 2008.January 2009. Originally approved in 1993. Last previous edition approved in 20072008 as
C1227–07c. C 1227 – 08.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094, http://www.aci-int.org.
4
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 ----------------------
C1227–09
NSF/ANSI 46–2005 Evaluation of Components and Devices used in Wastewater Treatment Systems
3. Terminology
3.1 For definitions of terms relating to concrete, see Terminology C 125.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 access opening, n—hole in the top slab used to gain access to the inside of the tank for the purpose of cleaning and
removing sludge without
...

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Section  
Referenced Documents  
2  
Terminology  
3  
Summary of Practice  
4  
Significance and Use  
5  
Apparatus  
6  
Facilities  
6.1  
Container  
6.2  
Equipment  
6.3  
Hazards  
7  
Microcosm Components  
8  
Medium  
8.1  
Medium Preparation  
8.2  
Sediment  
8.3  
Microcosm Assembly  
8.4  
Test Material  
9  
General  
9.1  
Stock Solution  
9.2  
Nutrient Control  
9.3  
Test Organisms  
10  
Algae  
10.1  
Animals  
10.2  
Specificity of Organisms  
10.3  
Sources  
10.4  
Algal Culture Maintenance  
10.5  
Animal Culture Maintenance  
10.6  
Procedure  
11  
Experimental Design  
11.1  
Inoculation  
11.2  
Culling  
11.3  
Addition of Test Material  
11.4  
Measurements  
11.5  
Reinoculations  
11.6  
Analytical Methodology  
12  
Data Processing  
13  
Calculations of Variables from Measurements  
14  
Statistical Analyses ...

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ASTM
ASTM G210-13(2023)(Practice)
Standard Practice for Operating the Severe Wastewater Analysis Testing Apparatus

SIGNIFICANCE AND USE
5.1 Domestic wastewater headspace environments are corrosive due to the presence of sewer gases and sulfuric acid generated during the biogenic sulfide corrosion process.5 This operating procedure provides an accelerated exposure to sewer gases and concentration of sulfuric acid commonly produced by bacteria within these sewer environments.6  
5.2 The results obtained by the use of this practice can be a means for estimating the protective barrier qualities of a protective coating or lining for use in severe sewer conditions.  
5.3 Some protective coatings or linings may not withstand the exposure temperature specified in this practice but have demonstrated satisfactory performance in actual sewer exposures, which are at lower temperatures.
SCOPE
1.1 This practice covers the basic apparatus, procedures, and conditions required to create and maintain the severe wastewater analysis testing apparatus used for testing a protective coating or lining.  
1.2 This apparatus may simulate the pertinent attributes of a typical domestic severe wastewater headspace (sewer) environment. The testing chamber comprises two phases: (1) a liquid phase containing a prescribed acid and saline solution, and (2) a vapor phase consisting of air, humidity, and concentrated sewer gas (Note 1). The temperature of the test chamber is elevated to create accelerated conditions and reaction rates.
Note 1: For the purposes of this practice, sewer gas is composed of hydrogen sulfide, carbon dioxide, and methane gas.  
1.3 Caution—This practice can be extremely hazardous. All necessary precautions need to be taken when working with sewer gas, sulfuric acid, and a glass tank. It is highly recommended that a professional testing laboratory experienced in testing with hydrogen sulfide, carbon dioxide, and methane gases perform this practice.  
1.4 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.  
1.5 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. Some specific hazards statements are given in Section 8 on Hazards.  
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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ASTM
ASTM D5886-95(2023)(Guide)
Standard Guide for Selection of Test Methods to Determine Rate of Fluid Permeation Through Geomembranes for Specific Applications

SIGNIFICANCE AND USE
5.1 The principal characteristic of geomembranes is their intrinsically low permeability to a broad range of gases, vapors, and liquids, both as single-component fluids and as complex mixtures of many constituents. As low-permeable materials, geomembranes are being used in a wide range of engineering applications in geotechnical, environmental, and transportation areas as barriers to control the migration of mobile fluids and their constituents. The range of potential permeants is broad and the service conditions can differ greatly. This guide shows users test methods available for determining the permeability of geomembranes to various permeants.  
5.2 The transmission of various species through a geomembrane is subject to many factors that must be assessed in order to be able to predict its effectiveness for a specific service. Permeability measurements are affected by test conditions, and measurements made by one method cannot be translated from one application to another. A wide variety of permeability tests have been devised to measure the permeability of polymeric materials; however, only a limited number of these procedures have been applied to geomembranes. Test conditions and procedures should be selected to reflect actual service requirements as closely as possible. It should be noted that field conditions may be difficult to model or maintain in the laboratory. This may impact apparent performance of geomembrane samples.  
5.3 This guide discusses the mechanism of permeation of mobile chemical species through geomembranes and the permeability tests that are relevant to various types of applications and permeating species. Specific tests for the permeability of geomembranes to both single-component fluids and multicomponent fluids that contain a variety of permeants are described and discussed.
SCOPE
1.1 This guide covers selecting one or more appropriate test methods to assess the permeability of all candidate geomembranes for a proposed specific application to various permeants. The widely different uses of geomembranes as barriers to the transport and migration of different gases, vapors, and liquids under different service conditions require determinations of permeability by test methods that relate to and simulate the service. Geomembranes are nonporous, homogeneous materials that are permeable in varying degrees to gases, vapors, and liquids on a molecular scale in a three-step process by: (1) dissolution in or absorption by the geomembrane on the upstream side, (2) diffusion through the geomembrane, and (3) desorption on the downstream side of the barrier.  
1.2 The rate of transmission of a given chemical species, whether as a single permeant or in mixtures, is driven by its chemical potential or in practical terms by its concentration gradient across the geomembrane. Various methods to assess the permeability of geomembranes to single component permeants, such as individual gases, vapors, and liquids are referenced and briefly described.  
1.3 Various test methods for the measurement of permeation and transmission through geomembranes of individual species in complex mixtures such as waste liquids are discussed.  
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.  
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.

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ASTM
ASTM E3317-22(Specification)
Standard Specification for Silica-Based Sediments for the Evaluation of Stormwater Treatment Devices

SCOPE
1.1 This specification covers the minerology, specific gravity, and particle size distributions (PSDs) of silica-based sediments to be used in the laboratory performance testing of stormwater treatment devices as well as criteria defining acceptable error for the target PSDs.  
1.2 Silica-based sediment is used as a surrogate material for performance and scour determinations for some manufactured stormwater treatment devices such as hydrodynamic separators and filters. These data are used to gain regulatory approvals within certain jurisdictions.  
1.3 Acceptance of test results attained according to this specification may be subject to specific requirements set by a Quality Assurance Project Plan, a specific verification protocol, or a policy set by an Authority Having Jurisdiction (AHJ). It is advised to review one or all of the above to ensure compliance.  
1.4 The values stated in inch-pound units are to be regarded as standard, except for methods to establish and report sediment concentration and particle size. It is convention to exclusively describe sediment concentration in mg/L and particle size in mm or μm, both of which are SI units. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Reporting of test results in units other than inch-pound units shall be regarded as conforming with this test method.  
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. Silica-based sediment is considered hazardous under the OSHA Hazard Communications Standard (29 CFR 1910.1200).  
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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ASTM
ASTM C478/C478M-22(Specification)
Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

ABSTRACT
This specification covers the manufacture and purchase requirements of products used for the assembly and construction of circular vertical precast reinforced concrete manholes and structures used in sewer and water works. Reinforced concrete shall consist of cementitious materials, mineral aggregates, and water, in which steel reinforcement has been embedded in such a manner so that the steel reinforcement and concrete act together. Aggregates shall conform to the specification , except that the requirements for gradation shall not apply. Minimum compressive strength of concrete manhole products covered must meet the requirement. The aggregates shall be sized, graded, proportioned, and mixed with such proportions of cementitious materials and water as will produce as homogeneous concrete mixture of such quality that the products will conform to the test and design requirements. Concrete products shall be subjected to either steam or water curing. Test methods such as compression and absorption testing shall be performed.
SCOPE
1.1 This specification covers the manufacture and purchase requirements of products used for the assembly and construction of circular vertical precast reinforced concrete manholes and structures used in sewer, drainage, and water works.  
1.2 Part I, Sections 1 – 11, of this specification presents general requirements and requirements that are common to each precast concrete product covered by this specification.  
1.3 Part II of this specification presents specific requirements for each manhole product in the following sections:    
Product  
Section  
Grade Rings  
12  
Flat Slab Tops  
13  
Risers and Conical Tops  
14  
Base Sections  
15  
Steps and Ladders  
16  
Note 1: Future products will be included in Part II in a future revision of this specification.  
1.4 The values stated in either inch pound or SI units are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
Note 2: This specification is a manufacturing and purchase specification only and does not include requirements for backfill, or the relationship between field load conditions and the strength requirements of the manhole products and appurtenances. Experience has shown, however, that the successful performance of this product depends upon the proper selection of the product strength, type of foundation and backfill, and care in the field installation of the manhole products and connecting pipes. The owner of the project for which these products are specified herein is cautioned to require inspection at the construction site.  
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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