This specification provides the minimum requirements for the design, fabrication, rating, marking, and testing of all cast pipe line strainers, and welded pipe line strainers used in services up to 150 psig and 150°F (1 MPa and 65°C) that are acceptable for use in marine environments. The strainers may be classified into three general construction categories, namely, simplex, duplex (or multiplex), and automatic (self-cleaning). They may also be further classified according to pressure ratings and types of port connections, port alignments relative to unit center lines, cover closures, valve types (in duplex), types of baskets or elements, materials of construction, and other features of design.1.1 This specification covers all cast strainers and welded strainers in services up to 150 psig and 150°F (1 MPa and 65°C). For welded strainers used in services above 150 psig and 150°F, see Specification F1200.1.2 This standard provides the minimum requirements for the design, fabrication, rating, marking, and testing of cast and welded pipe line strainers for services above 0°F (−18°C).1.3 Strainers manufactured to this specification are acceptable for use in the marine environment.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 The following safety hazards caveat pertains only to the test methods portion, Section 8, of this specification. 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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This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. They are applicable to filters made of sintered glass, ceramic, metal, or plastic. This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which occur through continued use. Maximum pore diameter is determined by immersing the filter in a suitable test liquid and applying air pressure until the first bubble of air passes through the filter. The maximum pore diameter is calculated from the surface tension of the test liquid and the applied pressure. Permeability is determined by measuring the flow of air through the filter when subjected to a pressure differential.1.1 This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. They are applicable to filters made of sintered glass, ceramic, metal, or plastic. This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which occur through continued use.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.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.

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5.1 This practice is intended for use as a guide in evaluating the behavior of insulations at elevated temperatures, and in judging suitability for use under the conditions of an intended application. It is not intended for acceptance or certification testing on a lot basis.5.2 No single test for estimating maximum use temperature can be used that will apply to all types of insulations, nor can any single maximum use temperature be applied to any insulation that will be applicable under all possible conditions of use. Maximum use temperature depends on thickness, temperature gradient, heating rate, and other factors. When the various test methods listed herein are employed, the test results serve as guides and, as such, shall be applied with good engineering judgment in arriving at an acceptable temperature limit for the products and applications being considered.5.3 The criteria used to establish acceptable performance is provided in the material specification or as agreed upon by the purchaser and seller.5.4 In most cases, the properties covered by the applicable material standards (for example, thermal transmission, strength, and so forth) are the properties important to the end use of the product. Major changes in those properties resulting from in-service conditions often causes failure or substandard performance of the installed system.5.5 Unless removal and reuse of the insulation is an important consideration, properties that relate primarily to handling and installation shall be eliminated from the evaluation.NOTE 1: Installation assemblies: some systems create conditions that affect the performance from the data obtained in the test procedures of this practice.5.6 The listing of a test procedure in this practice does not imply that the performance of that particular procedure is required. Only those tests which are relevant to the requirements of the application involved, or which are agreed upon by the purchaser and the seller are preformed.5.7 Most of the changes that occur in the functionally important characteristics of all types of thermal insulation during service result from changes in the matrix or binder system first, followed by changes in the bulk filler materials where such fillers have been used.5.7.1 In general, these changes are temperature-dependent and the major portion of the change takes place quickly once the critical temperature has been reached.5.7.2 Typically, organic thermoplastic materials or binders will change in the 140 °F to 240 °F (60 °C to 116 °C) temperature range. Thermosetting organic materials or binders will start to deteriorate above 350 °F (177 °C). Hydrated inorganic binders such as clays, Portland and lumnite cements, gypsum, sodium silicates, oxysulfates, and oxychlorides lose varying amounts of water of crystallization at temperatures from 250 °F to 900 °F (121 °C to 482 °C) depending on the compound. Glass fibers and glass foams start to sinter around 1000 °F (538 °C). Rock or slag wools, perlite and refractory fibers occasionally show change at temperatures in excess of 1300 °F (704 °C).5.8 If, after testing specimens exposed to the maximum service temperature, additional tests are made of specimens exposed to intermediate temperatures (third or quarter points in the full service temperature range), the results of such tests, when plotted with proper curve-fit techniques, give indications of changes in product characteristics throughout the service range. These results are used to bracket the temperature range within which a change has occurred (for example, significant change in slope of curve).5.9 Some properties of thermal insulations containing trapped gases other than air change with time at different rates depending on the age, thickness, facing and boundary conditions. Elevated temperature exposure often accelerates these changes. In many cases changes in properties continue over a very long period of time. It is beyond the scope of this recommended practice to establish a minimum time period for evaluation of long-term changes.1.1 This practice covers estimation of the maximum use temperature of thermal insulation including loose fill, blanket, block, board, and preformed pipe insulation. It is based upon selected performance criteria, and characterization of product properties during and after use conditions.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.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.

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1.1 This specification covers hot-rolled carbon steel sheet and strip of commercial quality, in coils and cut lengths, having a maximum carbon of 0.15%. This material is intended for parts where bending, moderate forming or drawing, and welding may be involved. 1.2 This specification is not applicable to the steel covered by Specification A635/A635M. 1.3 The values stated in either acceptable metric units (SI) or in inch-pound units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.

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This specification covers mercury-in-glass, reusable maximum self-registering clinical thermometers of the types commonly used for measuring body temperatures of humans and of animals. Clinical thermometers shall be classified as follows: basal metabolism or ovulation; multi-use with stubby bulb; oral; rectal; veterinary; and veterinary (heavy duty). The following tests shall be performed to conform to the specified requirements: retention of colorant; accuracy test; ease of resetting; temperature retention; fire cracks; and precision and bias.1.1 This specification covers mercury-in-glass, reusable maximum self-registering clinical thermometers of the types commonly used for measuring body temperatures of humans and of animals. Requirements are given for bulb and stem glasses, mercury, legibility and permanency of markings, dimensions, temperature scale ranges, and graduations, as well as for thermometer stability, ease of resetting, retention of temperature indication, and for accuracy of scale reading. Appropriate methods of testing to determine compliance are provided. Also included is a glossary of terms used in the standard and an appendix with additional information on thermometer glasses and stability.1.2 All values of temperature in this standard are with reference to the International Temperature Scale of 1990.1.3 This specification was developed to provide nationally recognized marketing classifications and quality requirements for mercury-in-glass, maximum self-registering clinical thermometers. It is also intended to provide producers, distributors, and users with a common understanding of the characteristics of this product.1.4 The following precautionary statement pertains only to the test method portion, Section 6 of this specification: 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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This specification covers a limit for thermal residual stress in reusable annealed glass laboratory apparatus as determined by prescribed photoelastic measurement procedures. This specification recognizes that photoelastic measurements are proportional to the difference of the principal stresses. The stress limit shall be measured and calculated to meet the specified requirements.1.1 This specification covers a limit for thermal residual stress in reusable annealed glass laboratory apparatus as determined by prescribed photoelastic measurement procedures.1.2 In broad classification, the laboratory glassware items covered by this specification, but not limited to, are:beakers Imhoff conesbottles, aspirator impingersbottles, dropping jars, batterybottles, gas washing jars, bellbottles, infusion jars, chromatographybottles, milk test jars, cylindricalbottles, reagent joints, ball and socket or standard taperbottles, weighing manometersbulbs, absorption percolatorsbulbs, leveling pycnometersbulbs, sampling stopcocksburets tubes, centrifugecondensers tubes, chromatographycrystallizing dishes tubes, color comparison (turbidity)culture dishes tubes, combustion (ignition)custom apparatus tubes, connecting and adaptercylinders, graduated tubes, digestion and plain tubes, dryingdesiccators tubes, fermentationextraction tubes tubes, thistle (spray traps)flasks vapor trapsfritted ware viscometersfunnels watch glassesgenerators, Kipp  grinder, tissue  1.3 This specification recognizes that photoelastic measurements are proportional to the difference of the principal stresses. The limit imposed represents a safety factor to cover a situation in which one of the principal stresses may be larger than the apparent stress.1.4 This specification applies only to annealed glassware that is intended for sale as such. It excludes glassware that has been thermally tempered, ion-exchanged, or laminated with glass layers of differing expansion. The intent of this specification is to limit the residual stresses for safe consumer use in annealed glass, as it leaves the manufacturer.1.5 Stresses introduced by thermal expansion differences within the glassware are covered by this specification. Graded and glass-to-metal seals are excluded.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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3.1 This test method covers a procedure to determine the maximum functional volume of the primary dirt receptacle when installed in the vacuum cleaner.3.2 This test method provides the maximum amount of test media that the primary dirt receptacle will hold and may be more than the volume obtained when filled to the manufacturer's recommended fill line.1.1 This test method covers household types of upright, canister, and combination vacuum cleaners.1.2 This test method provides a measurement in dry quarts or litres of the maximum functional volume of the primary dirt receptacle when installed in the vacuum cleaner.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. For specific hazards statements see 7.2 and 8.5.1.4 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.

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5.1 The theoretical maximum specific gravities and densities of asphalt mixtures are fundamental properties whose values are influenced by the composition of the mixture in terms of types and amounts of aggregates, asphalt binder, and other materials present in the mixtures.5.1.1 Maximum specific gravity is used (1) in the calculation of air voids in the compacted asphalt mixture, (2) in calculating the amount of asphalt binder absorbed by the aggregate, and (3 ) to provide target values for the compaction of asphalt mixtures.NOTE 1: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.1.1 This test method covers the determination of the theoretical maximum specific gravity and density of uncompacted asphalt mixtures at 25 °C [77 °F].1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.1.2.1 Residual pressure measurements are shown in both the SI unit of kPa and the commonly used nonstandard equivalent unit of “mm of Hg.”1.2.2 Measurements of volume and mass are only given in SI units because they are the only units typically used in practice when performing this test method.1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.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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4.1 Various users desire indication of compliance with VMA specifications for hot mix asphalt (HMA) during production.4.2 The standard practice for determining VMA requires that the bulk specific gravity of the aggregate components be determined. This is a very time-consuming test, which is not suitable for routine QC procedures.4.3 When an aggregate source used in the mix has a highly variable bulk specific gravity and a reference average bulk specific gravity (Gsb) (for example, as established in the mix design) is used to calculate VMA during HMA production, erroneous values may occur.4.4 The test for maximum specific gravity of the mix (Gmm) is a routine QC test at HMA plants. The effective specific gravity of the aggregate components (Gse) can be easily calculated from this test. However the Gse does not take into account the amount of asphalt absorbed, which is required for accurate VMA determination. This method provides a means to correct the Gse to account for the average absorbed asphalt. This procedure should not be used if the percent water absorption of the total (combined) aggregates varies between four tests, randomly obtained over a 30 day period, by more than 0.4 %.1.1 This test method is intended to be used for a rapid field determination of voids in mineral aggregate (VMA) of asphalt mixture. It provides equations for calculating the VMA based on the asphalt content of the mix and its maximum specific gravity (Gmm). It is intended that this should be used for the rapid “field” determination of VMA during quality control (QC) operations at HMA plants, particularly where the specific gravity of the aggregate is highly variable.NOTE 1: VMA determined using the rapid field method is VMA that has been corrected for aggregate absorption.1.2 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.1.3 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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4.1 This specification sets the maximum permissible cashmere coarse-hair content for cashmere in the form of roving, yarn, or fabric.4.2 When agreed upon by parties in interest, this specification provides a basis for acceptance testing of roving, yarn, or fabric of cashmere, or blends of cashmere and other fibers in such products.AbstractThis specification sets the maximum permissible cashmere coarse-hair content in cashmere in the form of roving, yarn, or fabric. Single standard testing for the determination of the cashmere coarse-hair content shall be enough. In case of dispute, additional tests may be done.1.1 This specification covers the allowable cashmere coarse-hair content in cashmere which has been processed at least to the roving stage.1.2 For blends of cashmere hair and other fibers, this specification is applicable only to the cashmere hair content of such blends.NOTE 1: For the determination of the cashmere coarse-hair content in cashmere, refer to Test Method D2816. For the identification of textile fibers see Methods D276. For the quantitative determination of the composition of textile blends, see Test Methods D629.1.3 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.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： 515元 / 折扣价： 438 元 加购物车