
【国外标准】 Standard Practices for Calibration of Laboratory Mechanical-Rammer Soil Compactors
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>

适用范围:
3.1 Mechanical compactors are commonly used to replace the hand compactors required for Test Methods D698 and D1557 in cases where it is necessary to increase production.3.2 The design of mechanical compactors is such that it is necessary to have a calibration process that goes beyond determining the mass and drop of the hammer.NOTE 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria in Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/and the like. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.1.1 These practices for the calibration of mechanical soil compactors are for use in checking and adjusting mechanical devices used in laboratory compacting of soil and soil-aggregate in accordance with Test Methods D698, D1557, Practice D6026, and other methods of a similar nature that might specify these practices. Calibration for use with one practice does not qualify the equipment for use with another practice.1.2 The weight of the mechanical rammer is adjusted as described in 5.4 and 6.5 in order to provide for the mechanical compactor to produce the same result as the manual compactor.1.3 Two alternative procedures are provided as follows: SectionPractice A Calibration based on the compaction of a selected soil sample 5Practice B Calibration based on the deformation of a standard lead cylinder 61.4 If a mechanical compactor is calibrated in accordance with the requirements of either Practice A or Practice B, it is not necessary for the mechanical compactor to meet the requirements of the other practice.1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.1.5.1 It is common practice in the engineering profession to concurrently use pounds to represent both a unit of mass (lbm) and a force (lbf). This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. This standard has been written using the gravitational system of units when dealing with the inch-pound system. In this system, the pound (lbf) represents a unit of force (weight). However, the use of balances or scales recording pounds of mass (lbm) or the recording of density in lbm/ft3 shall not be regarded as a nonconformance with this standard.1.6 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.1.7 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.
标准号:
ASTM D2168-10(2018)
标准名称:
Standard Practices for Calibration of Laboratory Mechanical-Rammer Soil Compactors
英文名称:
Standard Practices for Calibration of Laboratory Mechanical-Rammer Soil Compactors标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 推荐标准
- ASTM E3168-20a Standard Practice for Determining Low-Contrast Visual Acuity of Radiographic Interpreters
- ASTM E317-21 Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments
- ASTM E3170/E3170M-18(2023) Standard Practice for Phased Array Ultrasonic Testing of Polyethylene Electrofusion Joints
- ASTM E3171-21a Standard Test Method for Determination of Total Silver in Textiles by ICP-OES or ICP-MS Analysis
- ASTM E3178-18 Standard Practice for Evaluating Static and Cidal Chemical Decontaminants against Bacillus Spores using Centrifugal Filtration Tubes
- ASTM E3182-20 Standard Practice for Preparing an Occupant Exposure Screening Report (OESR) for Substances in Installed Building Products
- ASTM E3186-19 Standard Guide for Use and Testing of Dry-Block Temperature Calibrators
- ASTM E3191-18 Standard Specification for Permanent Foaming Fixatives Used to Mitigate Spread of Radioactive Contamination
- ASTM E3192/E3192M-20 Standard Practice for Soft Armor Conditioning by Tumbling
- ASTM E3197-23 Standard Terminology Relating to Examination of Fire Debris
- ASTM E3199-22a Standard Guide for Alternative Allocation Approaches to Modeling Input and Output Flows of Secondary Materials and Related Recycling Scenarios in Life Cycle Assessment
- ASTM E3200-21 Standard Guide for Investment Analysis in Environmentally Sustainable Manufacturing
- ASTM E3208-20 Standard Specification for Minimum Equipment Requirements for Mobile Surface Contaminant Classification and Measurement Equipment
- ASTM E3209/E3209M-20 Standard Test Method for Pavement Thickness by Magnetic Pulse Induction
- ASTM E321-20 Standard Test Method for Atom Percent Fission in Uranium and Plutonium Fuel (Neodymium-148 Method)