定价： 646元 加购物车

定价： 646元 加购物车

定价： 646元 加购物车

3.1 This practice for performance testing provides guidance to performance test sponsors, developers, and delivery providers for the planning, design, development, administration, and reporting of high-quality performance tests. This practice assists stakeholders from both the user and consumer communities in determining the quality of performance tests. This practice includes requirements, processes, and intended outcomes for the entities that are issuing the performance test, developing, delivering and evaluating the test, users and test takers interpreting the test, and the specific quality characteristics of performance tests. This practice provides the foundation for both the recognition and accreditation of a specific entity to issue and use effectively a quality performance test.3.2 Accreditation agencies are presently evaluating performance tests with criteria that were developed primarily or exclusively for multiple-choice examinations. The criteria by which performance tests shall be evaluated and accredited are ones appropriate to performance testing. As accreditation becomes more critical for acceptance by federal and state governments, insurance companies, and international trade, it becomes more critical that appropriate standards of quality and application be developed for performance testing.1.1 This practice covers both the professional certification performance test itself and specific aspects of the process that produced it.1.2 This practice does not include management systems. In this practice, the test itself and its administration, psychometric properties, and scoring are addressed.1.3 This practice primarily addresses individual professional performance certification examinations, although it may be used to evaluate exams used in training, educational, and aptitude contexts. This practice is not intended to address on-site evaluation of workers by supervisors for competence to perform tasks.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.

定价： 590元 加购物车

定价： 646元 加购物车

4.1 The procedures recommended in this guide can be used by a panel leader to provide assessors and panels feedback: (1) on their data-based performance, (2) on any behavior changes that are needed to improve their performance, and (3) to motivate assessors to remain engaged with the panel tasks. The aim of all these types of feedback is to ensure the generation of repeatable and valid data.4.2 This guide provides direction for how to achieve mutually beneficial feedback exchanges between assessors and panel leaders.1.1 This guide provides guidance to sensory panel leaders on how to deliver performance feedback to trained sensory assessors and panels. This guide is not intended to be used by individual assessors or anyone unfamiliar with the panel.1.2 This guide covers recommended feedback given throughout assessor training, panel development, and ongoing assessor and panel monitoring.1.3 This guide examines aspects of feedback including: types, when to provide, effective delivery, and alignment to performance expectations for assessors.1.4 Descriptive, discrimination, and quality panels are within the scope of this guide.1.5 This guide does not cover consumer panels (qualitative or quantitative).1.6 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.1.7 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.1.8 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.

定价： 646元 加购物车

定价： 646元 加购物车

定价： 646元 加购物车

定价： 927元 加购物车

定价： 646元 加购物车

定价： 927元 加购物车

4.1 This guide provides procedures enabling the recording of qualitative performance information under controlled test conditions. This information can be used together with quantitative data to comprehensively evaluate a particular spill removal device or as a means of comparing two or more devices.4.2 Although the qualitative assessment described in this guide can be somewhat subjective, it is an important part of the overall evaluation of a spill removal device. This guide covers performance factors other than recovery rate and efficiency that will affect the device's performance in an actual spill. Their consideration allows the comprehensive evaluation or comparison of spill removal devices.4.3 Caution must be exercised whenever test data are used to predict performance in actual spill situations as the uncontrolled environmental conditions that affect performance in the field are rarely identical to conditions in the test tank.4.4 Portions of this guide are specifically intended for skimmers with hydraulic power supplies. This is not intended to limit application of this guide to skimmers with other power supplies such as electric or pneumatic.1.1 This guide covers evaluating a number of qualitative performance parameters for full-scale oil spill removal systems or individual components of those systems. It is intended to complement the quantitative testing covered in Guide F631.1.2 This guide is intended for potential purchasers of oil spill removal equipment to ensure that suppliers meet their needs and expectations.1.3 This guide requires a subjective evaluation that could vary widely when completed by different organizations. As such, its main use would be as a means of comparing different skimmers for a particular organization or application.1.4 Not all of the items in this guide would apply to a particular skimmer or to a particular cleanup application. Prior to using this guide, users should carefully review the entire contents and note those areas that are most important to their needs. In particular, qualitative evaluation of items such as workmanship of construction may not be applicable to prototype skimmers.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. Specific safety precautions are given in Section 9.1.6 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.

定价： 590元 加购物车

定价： 712元 加购物车

定价： 712元 加购物车

定价： 646元 加购物车