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： 646元 加购物车

定价： 646元 加购物车

5.1 Any individual performing a mat bond evaluation should either be a qualified installer or a trained and experienced evaluator of resilient flooring and adhesive bond strength.5.2 This practice should not be considered mandatory, except when required or specified by the end user, general contractor and architect, flooring contractor, adhesive manufacturer(s), underlayment manufacturer(s) or flooring manufacturer(s).5.2.1 Typically, this practice is only recommended or required if products from a different manufacturer(s) are being used in combinations not experienced before or if the substrate preparation or application method is in question.5.3 The number of mat bond evaluation(s) should be selected that is appropriate for the project and be representative of each type of substrate, including trenches, grade, type of flooring, and ambient conditions. The number may also be determined by the responsible party or specified by the end user, general contractor and architect, flooring contractor, adhesive manufacturer(s), underlayment manufacturer(s) or flooring manufacturer(s).5.4 All mat bond evaluation(s) conducted shall have the results recorded within report, including photographs (see A1.11).5.5 There are many factors that may influence the outcome of mat bond evaluation(s). Therefore, it is required to follow each manufacturer(s) installation/application instructions for every product used including open, curing, drying time, and the length of time required prior to evaluation(s)s.5.6 Each step of the process must be conducted only at a time when the subfloor and ambient conditions comply with the requirements defined by all of the relevant manufacturer(s) written installation instructions or Practices F710, F1482, F2419, F2471, F2678, F2873, F3010, or combinations thereof.1.1 This practice is designed to provide a short-term qualitative evaluation of the effectiveness and compatibility of the composite layers for flexible and fully adhered resilient flooring installation(s). Aspects of the resilient flooring assembly to be evaluated may include concrete surface profile (CSP), surface preparation, a topical moisture mitigation system, underlayment product(s), primer(s), application and the installation of the resilient flooring material itself. Aspects such as surface profile, surface cleanliness, surface porosity, the application method(s), and the open, curing, and drying times of each layer of the flooring system can be assessed using this practice prior to the actual full-scale installation taking place.1.1.1 This practice is not intended for use with liquid applied, loose laid or perimeter fixed, or rigid resilient flooring products.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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 6 for specific Hazards statements.1.4 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： 927元 加购物车

定价： 515元 加购物车

定价： 590元 加购物车

定价： 571元 加购物车

定价： 1011元 加购物车

定价： 1011元 加购物车

定价： 590元 加购物车

定价： 1011元 加购物车

5.1 This test method was developed to evaluate automotive lubricant’s effect on controlling valve-train wear and overall engine wear for overhead camshaft engines with direct acting bucket lifters.5.2 Average intake lifter volume loss is used as a measure of an oil’s ability to prevent valve-train wear.5.3 End-of-test oil iron concentration is used as a measure of an oil’s ability to prevent overall engine wear.NOTE 2: This test method may be used for engine oil specifications such as API SP, and ILSAC GF- 6A, and GF-6B.1.1 This test method measures the ability of an engine crankcase oil to control valve-train wear in spark-ignition engines at low operating temperature conditions. This test method is designed to simulate extended engine cyclic vehicle operation. The Sequence IVB Test Method uses a Toyota 2NR-FE water cooled, 4 cycle, in-line cylinder, 1.5 L engine. The primary result is bucket lifter wear. Secondary results include cam lobe nose wear and measurement of iron (Fe) wear metal concentration in the used engine oil. Other determinations such as fuel dilution of the crankcase oil, non-ferrous wear metal concentrations, total fuel consumption, and total oil consumption, can be useful in the assessment of the validity of the test results.21.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.2.1 Exceptions—Where there is no direct SI equivalent such as pipe fittings, tubing, NPT screw threads/diameters, or single source equipment specified.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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are provided throughout this document as necessary in each particular section.1.4 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： 1058元 加购物车