1、m 2595532 00iBbbb 405 m UL70 ADOPTION NOTICE UL70, “Septic Tanks, Bituminous Coated Metal,” was adopted on October 3, 1994, for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Adopting Activity: OC-ALC/TICLA, 3001 Staff Drive, Tinker AFB, OK 73
2、145-5990. DoD activities may obtain copies of this standard from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. The private sector and other Government agencies may purchase copies from the Underwriters Laboratories, Inc., 333 Pfingsten Road, N
3、orthbrook, IL 60062-2096. Custodians: Army - ME Navy - AS Air Force - 71 Adopting Activity Air Force - 71 FSC 4630 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. UL 70 ISBN 0-7629-0690-1 Septic Tanks, Bituminous- Coated Metal AUGUST 29,2001 - UL 70 trl Underwriters
4、 Laboratories Inc. (UL) 333 Pfingsten Road Northbrook, IL 60062-2096 UL Standard for Safety for Septic Tanks, Bituminous-Coated Metal, UL 70 Seventh Edition, Dated August 29, 2001 UL Standards for Safety are developed and maintained in the Standard Generalized Markup Language (SGML). SGML - an inter
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21、es as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a ”SUPERSEDED REQUIREMENTS” notice. New product submittals made prior to a specified future effect
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23、 noted that compliance with all the requirements in this Standard will be required as a condition of continued Listing and Follow-Up Services after the effective date, and understanding of this should be signified in writing. Copyright O 2001 Underwriters Laboratories Inc. This Standard consists of
24、pages dated as shown in the following checklist: Page Date 1-12 Agt29,2001 AUGUST 29, 2001 1 UL 70 Standard for Septic Tanks, Bituminous-Coated Metal First Edition -June, 1958 Second Edition - December, 1961 Third Edition -June, 1970 Fourth Edition - August, 1974 Fifth Edition - December, 1979 Sixth
25、 Edition -June, 1993 Seventh Edition August 29,2001 An effective date included as a note immediately following certain requirements is one established by Underwriters Laboratories Inc. Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL St
26、andard is current only if it incorporates the most recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. ISBN 0-7629-0690-1 COPYRIGHT O 1974 , 2001 UNDERWRITERS LABORATORIES INC. 2 SEPTIC TANKS, BITUMINOUS-COATED META
27、L - UL 70 AUGUST 29,2001 No Text on This Page AUGUST 29. 2001 SEPTIC TANKS. BITUMINOUS-COATED METAL . UL 70 3 CONTENTS FOREWORD 4 INTRODUCTION 1 Scope . 5 2 Instructions . 5 CONSTRUCTION 3 General 5 3.1 Components . 5 3.2 Units of measurement . 6 3.3 Material . 6 3.4 Thickness of metal 6 3.5 Load 6
28、3.6 Watertightness . 6 3.7 Workmanship 6 3.8 Capacities . 7 4 Single Compartment Tanks 7 4.1 Sizes and dimensions . 7 4.2 Liquid depth 7 4.3 Baffles and fittings 7 4.4 Access for cleaning and inspection 5.1 Dimensions and limitations 5.2 Access for cleaning and inspection . 8 6.1 General . 9 6.2 Pre
29、paration 9 6.3 Coating system . 9 6.4 Material and application - System I . 9 6.5 Material and application - System II . 10 6.6 Coating thicknesses and measurements . 11 6.7 Touch-up coatings . 11 5 Multiple Compartment Tanks . 6 Coatings 9 MARKING 7 General . 12 4 SEPTIC TANKS, BITUMINOUS-COATED ME
30、TAL - UL 70 AUGUST 29,2001 FOREWORD A. This Standard contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope section of this Standard. These requirements are based upon s
31、ound engineering principles, research, records of tests and field experience, and an appreciation of the problems of manufacture, installation, and use derived from consultation with and information obtained from manufacturers, users, inspection authorities, and others having specialized experience.
32、 They are subject to revision as further experience and investigation may show is necessary or desirable. B. The observance of the requirements of this Standard by a manufacturer is one of the conditions of the continued coverage of the manufacturers product. C. A product which complies with the tex
33、t of this Standard will not necessarily be judged to comply with the Standard if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirements. D. A product that contains features, characteristics, components, materials, or systems
34、new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the
35、 intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employe
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38、 including consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Standard. F. Many tests required by the Standards of UL are inherently hazardous and adequate safeguards for personnel and property shall be employed in conducting such tests. AUG
39、UST 29,2001 SEPTIC TANKS, BITUMINOUS-COATED METAL - UL 70 5 INTRODUCTION 1 Scope 1 .I These requirements cover single and multiple compartment, bituminous-coated metal septic tanks for use in residential sewage systems. 1.2 The minimum liquid capacity of septic tanks covered by these requirements is
40、 500 gallons (1985 L). 1.3 For the purpose of these requirements, a residential septic tank is an enclosed, watertight, sewage-settling tank intended to retain the solids in immediate contact with the sewage flowing through the tank for a period of time to secure satisfactory decomposition of settle
41、d solids by biochemical action. 1.4 The liquid capacity is the capacity of the tank below the bottom of the outlet when the tank is level. 2 Instructions 2.1 The manufacturer shall provide, with each septic tank, adequate instructions for installation and servicing. 2.2 The instructions shall includ
42、e such directions and information as deemed by the manufacturer to be adequate for attaining proper installation, maintenance, and use of the product. CONSTRUCTION 3 General 3.1 Components 3.1 .I Except as indicated in 3.1.2, a component of a product covered by this standard shall comply with the re
43、quirements for that component. 3.1.2 A component is not required to comply with a specific requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 3.1.3
44、A component shall be used in accordance with its rating established for the intended conditions of use. 3.1.4 Specific components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain tem
45、peratures not exceeding specified limits, and shall be used only under those specific conditions. 6 SEPTIC TANKS, BITUMINOUS-COATED METAL - UL 70 AUGUST 29,2001 3.2 Units of measurement 3.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate
46、information. 3.3 Material 3.3.1 A tank shall be made of commercial-grade steel of suitable welding quality. Only new materials shall be used. 3.4 Thickness of metal 3.4.1 The thickness of sheet metal used in the construction of a tank and all other parts, including the baffles and partitions (where
47、used), shall be No. 14 MSG, nominal thickness 0.075 inch (1.91 mm) or heavier. 3.4.2 The thickness of each piece is to be determined by five micrometer readings spaced equally along an edge of the full piece as rolled. Thickness is to be measured on the sheet not less than 3/8 inch (9.5 mm) from a c
48、ut edge and not less than 3/4 inch (19.1 mm) from a mill edge. No measurement is to indicate a thickness of less than 0.067 inch (1.70 mm). 3.5 Load 3.5.1 A tank shall be so constructed that it withstands a uniformly distributed vertical load of 150 pounds per square foot (732 kg/m2) without permane
49、nt distortion. 3.6 Watertightness 3.6.1 A tank shall be constructed so as to be watertight. Fittings or covers or both shall be tight, when properly installed, to prevent the entrance of significant amounts of rain water, surface drainage, or ground water. 3.7 Workmanship 3.7.1 A tank shall be free from defects that affect its serviceability or durability. AUGUST 29,2001 SEPTIC TANKS, BITUMINOUS-COATED METAL - UL 70 7 3.8 Capacities 3.8.1 The liquid capacity of a single compartment tank shall not be less than 500 gallons (1895 L). 3.8.2 In a multiple-compartment tank, each com
