4.1 This test method can be used to determine particle size distributions for material specifications, manufacturing control, and research and development work in the particle size range usually encountered in fluidizable cracking catalysts.1.1 This test method covers the determination of particle size distribution of catalyst and catalyst carrier particles using an electroconductive sensing method and is one of several valuable methods for the measurement of particle size.1.2 The range of particle sizes investigated was 20 to 150 μm (see IEEE/ASTM SI 10) equivalent spherical diameter. The technique is capable of measuring particles above and below this range. The instrument used for this method is an electric current path of small dimensions that is modulated by individual particle passage through an aperture, and produces individual pulses of amplitude proportional to the particle volume.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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3.1 This test method is used to evaluate sulfur for suitability as a rubber vulcanizing agent. Sulfur particles must be small enough to dissolve in rubber during cure to produce a uniform network of cross-links. This test method is used as a quality control method to ensure that large particles are not present (and to determine if the sulfur follows a typical pattern for size distribution).1.1 This test method covers the particle size measurement of the coarse fraction of ground sulfurs. It is limited to measurement of particles greater than 45 μm (No. 325 sieve). If the sulfur is very fine and the screens become plugged by the caking of the sulfur, it may be necessary to use a wet sieve procedure instead.1.2 The values stated in SI units are to be regarded as the 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 guide is general and useful in helping the user to determine an appropriate manual test method for determining the particle size distribution of fluvial sediments. The suggested test methods are not described in this guide, but references are given so that the user may obtain more information about each test method.5.2 It should be noted that different test methods may and often times do produce different particle size distributions for the same sample. This is due in part to the different test methods requiring native or distilled water, differences in dispersion methods used, and differences in what the test method is measuring, that is, physical or sedimentation diameter.1.1 This guide covers the selection of methods for determining the size distribution of fluvial sediments particles in the range greater than 0.45 μm using manual methods. Manual methods are defined as those methods that require the operator to do some actual measurements and calculations. An automated method would be one which, after the sample is prepared and inserted into an instrument, the instrument (machine) does the measuring and calculations, not the operator. Not all manual methods are presented in this guide. However, where available, at least two methods for each particle size range are given.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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4.1 The presence of large grains has been correlated with anomalous mechanical behavior in, for example, crack initiation, crack propagation, and fatigue. Thus there is engineering justification for reporting the ALA grain size.4.2 These methods shall only be used with the presence of outlier coarse grains, 3 or more ASTM grain size numbers larger than the rest of the microstructure and comprising 5 % or less of the specimen area. A typical example is shown in Annex A1 as Fig. A1.1.4.3 These methods shall not be used for the determination of average grain size, which is treated in Test Methods E112. Examples of microstructures that do not qualify for ALA treatment are shown in Annex A1 as Fig. A1.2, Fig. A1.3, and Fig. A1.4.4.4 These methods may be applied in the characterization of duplex grain sizes, as instructed in the procedures for Test Methods E1181.1.1 These test methods describe simple manual procedures for measuring the size of the largest grain cross-section observed on a metallographically prepared plane section.1.2 These test methods shall only be valid for microstructures containing outlier coarse grains, where their population is too sparse for grain size determination by Test Methods E112.1.3 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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4.1 This practice is intended for use in determining the sample size required to estimate, with specified precision, a measure of quality of a lot or process. The practice applies when quality is expressed as either the lot average for a given property, or as the lot fraction not conforming to prescribed standards. The level of a characteristic may often be taken as an indication of the quality of a material. If so, an estimate of the average value of that characteristic or of the fraction of the observed values that do not conform to a specification for that characteristic becomes a measure of quality with respect to that characteristic. This practice is intended for use in determining the sample size required to estimate, with specified precision, such a measure of the quality of a lot or process either as an average value or as a fraction not conforming to a specified value.AbstractThis practice covers simple methods for calculating how many units to include in a random sample in order to estimate with a specified precision, a measure of quality for all the units of a lot of material or produced by a process. It also treats the common situation where the sampling units can be considered to exhibit a single source of variability; it does not treat multi-level sources of variability.1.1 This practice covers simple methods for calculating how many units to include in a random sample in order to estimate with a specified precision, a measure of quality for all the units of a lot of material, or produced by a process. This practice will clearly indicate the sample size required to estimate the average value of some property or the fraction of nonconforming items produced by a production process during the time interval covered by the random sample. If the process is not in a state of statistical control, the result will not have predictive value for immediate (future) production. The practice treats the common situation where the sampling units can be considered to exhibit a single (overall) source of variability; it does not treat multi-level sources of variability.1.2 The system of units for this standard is not specified. Dimensional quantities in the standard are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated.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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5.1 NTA is one of the very few techniques that are able to deal with the measurement of particle size distribution in the nano-size region. This guide describes the NTA technique for direct visualization and measurement of Brownian motion, generally applicable in the particle size range from several nanometers until the onset of sedimentation in the sample. The NTA technique is usually applied to dilute suspensions of solid material in a liquid carrier. It is a first principles method (that is, calibration in the standard understanding of this word, is not involved). The measurement is hydrodynamically based and therefore provides size information in the suspending medium (typically water). Thus the hydrodynamic diameter will almost certainly differ from size diameters determined by other techniques and users of the NTA technique need to be aware of the distinction of the various descriptors of particle diameter before making comparisons between techniques (see 8.7). Notwithstanding the preceding sentence, the technique is routinely applied in industry and academia as both a research and development tool and as a QC method for the characterization of submicron systems.1.1 This guide deals with the measurement of particle size distribution of suspended particles, from ~10 nm to the onset of sedimentation, sample dependent, using the nanoparticle tracking analysis (NTA) technique. It does not provide a complete measurement methodology for any specific nanomaterial, but provides a general overview and guide as to the methodology that should be followed for good practice, along with potential pitfalls.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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3.1 Refractory brick are used as modular units in furnace construction and should not deviate significantly from the intended configuration with respect to size, bulk density, flat surfaces, and right angles. These test methods are particularly suited for use under field conditions and provide a means to determine whether the brick meets the requirements considered necessary to assure a satisfactory refractory construction.1.1 These test methods cover procedures for measuring size, dimensional measurement, bulk density, warpage, and squareness of rectangular dense refractory brick and rectangular insulating firebrick. More precise determination of bulk density of refractory brick can be made by Test Methods C20. Stack height is generally determined only for dense refractories.NOTE 1: Test Methods C830 and Test Method C914 are also used to determine bulk density of refractory brick, by different procedures.1.2 The test methods appear in the following order:  SectionsSize and Bulk Density 4 through 7Warpage of Refractory Brick  8 through 10Squareness of Refractory Brick 11 through 141.3 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.1.4 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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1.1 This consumer safety specification establishes testing requirements for structural integrity and performance requirements for non-full-size cribs/play yards, both rigid sided and mesh/fabric assemblies. It also provides requirements for labeling and instructional material. The term unit or product will refer to a non-full-size crib/play yard.1.2 This specification covers a framed enclosure with a floor made for the purpose of providing sleeping or playing accommodations, or both, for a child who cannot climb out and is less than 35 in. (890 mm) in height. It also covers bassinet, changing table, or similar accessories to a non-full size crib/play yard. These accessories shall also comply with the applicable requirements of ASTM standards addressing those accessories. For example, a changing table that attaches to a play yard shall also comply with the applicable requirements in Specification F2388. This specification does not cover inflatable products.1.3 No product produced after the approval date of this consumer safety specification shall, either by label or other means, indicate compliance with this specification unless it conforms to all applicable requirements contained herein, before and after all testing.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 method 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.NOTE 1: This consumer safety specification includes the following sections:Title Section 1Referenced Documents 2 ASTM Standards 2.1 EN Standards 2.2 ISO Standards 2.3 Federal Regulations 2.4Terminology 3 Definitions of Terms Specific to This Standard 3.1  Accessory 3.1.23  Accessory Attachment Components 3.1.1  Bassinet/Cradle Accessory 3.1.2  Cantilevered Accessory 3.1.3  Conspicuous 3.1.4  Cord 3.1.5  Corner Post 3.1.6  Dropgate 3.1.7  Dynamic Load 3.1.8  Fabric 3.1.9  Foldable Side or End 3.1.10  Key Structural Elements 3.1.11  Manufacturer's Recommended Use Position 3.1.12  Mattress 3.1.13  Mattress Support Surface 3.1.14  Mesh 3.1.15  Mesh/Fabric Unit 3.1.16  Moveable Side 3.1.17  Non-Full-Size Crib 3.1.18  Non-paper Label 3.1.19  Occupant 3.1.20  Paper Label 3.1.21  Play Yard 3.1.22  Protrusion 3.1.24  Rigid Sided Product 3.1.25  Seam 3.1.26  Static Load 3.1.27  Stationary Side 3.1.28  Strap 3.1.29  Structural Failure 3.1.30Calibration and Standardization 4General Requirements 5 Corner Posts 5.1 Scissoring, Shearing, or Pinching 5.6 Latching and Locking Mechanisms 5.8 Openings 5.9 Protective Components 5.10 Labeling 5.11 Stability 5.12 Cords/Straps 5.13 Coil Springs 5.14 Entrapment in Accessories 5.15 Mattress 5.16 Mattresses for Rigid Sided Products 5.17 Protrusions 5.18 Bassinet/Cradle Accessories – Missing Accessory Attachment Components 5.19 Record Keeping 5.20Performance Requirements for Rigid Sided Products 6 Crib-Side Height 6.2 Spacing of Unit Components 6.3 Hardware 6.4 Fasteners 6.5 Construction and Finishing 6.6 Requirements for Cutouts 6.7 Plastic Teething Rail 6.10 Cyclic Test 6.11 Side(s) or End(s) Latch Testing, or Both 6.12  Dropgate or Other Moveable Side Latch  Testing 6.12.1  Foldable Side or End Latch Testing 6.12.2 Mattress Support System Vertical Impact Test Requirements 6.13 Mattress Support System Testing 6.14 Crib Side Test Requirements 6.15 Spindle/Slat Strength Testing 6.16Performance Requirements for Mesh/Fabric Products 7 Height of Sides 7.2 Side Deflection and Strength 7.3 Floor Strength 7.4 Top Rail Covering Material 7.5 Mesh Requirements 7.6  Mesh Openings 7.6.1  Mesh Strength 7.6.2 Fabric Material Requirements 7.7  Fabric Strength 7.7.1 Mesh/Fabric Assembly Requirements 7.8  Sewn Assembly 7.8.1  Seam Strength 7.8.2  Mesh/Fabric Attachment Strength 7.8.3 Mattress Vertical Displacement 7.9 Top Rail Configuration 7.10 Top Rail to Corner Post Attachment 7.11Test Methods 8 Component Spacing Test Apparatus 8.1 Component-Spacing Test Method 8.2 Test Requirements for Cutouts 8.3 Plastic Teething Rail Test for Rigid Sided Products 8.4 Cyclic Test 8.5 Side or End Latch Test, or Both, for Rigid Sided Products 8.6  Movable Side Latch Tests 8.6.3  Hinged Drop Gate Latch Test 8.6.4  Test Procedure for Latches to Prevent Folding  of a Foldable Side or End 8.6.5 Mattress Support System Vertical Impact Test for Rigid Sided Products 8.7 Mattress Support System Test for Rigid Sided Products 8.8 Crib Side Test 8.9  Crib Side Cyclic Tests 8.9.4  Crib Side Static Test 8.9.5  Crib Side Spindle/Slat Torque Test 8.9.6 Spindle/Slat Static Load Strength 8.10 Side Deflection and Strength Tests for Mesh/Fabric Products 8.11 Floor Strength Test for Mesh/Fabric Products 8.12 Locking Mechanism Test 8.13  Dropgate Locking Device Test Method 8.13.1  Folding Latch Test Method 8.13.2 Mesh Opening Test 8.14 Test for Strength of Mesh and Integrity of Attachment 8.15 Mesh/Fabric Attachment Strength Test Method 8.16 Test for Stability of Product 8.17 Permanency of Labels and Warnings 8.18 Removal of Protective Components 8.21  Torque Test 8.21.3  Tension Test 8.21.4 Vinyl Thickness Measurement 8.22 Test for Attachment of Storage Pouch or Other Parts with Printed Warnings 8.23 Cords/Straps Test Methods 8.24 Protrusions 8.25 Entrapment Tests 8.26 False Latch 8.27 Mattress Vertical Displacement Test 8.28 Top Rail Configuration Test 8.29  Minimum Space when Folded 8.29.1  Top Rail V-Shape Configuration Test 8.29.2 Top Rail to Corner Post Attachment Test 8.30  Load Application Procedure 8.30.3 Bassinet and Cradle Accessory – Sleep Surface Collapse/Tilt 8.31Marking and Labeling 9 Labeling 9.1 Warning Statements 9.2Instructional Literature 10 Warning Statements 10.1.2 Water Mattress Use 10.3.3Keywords 11Design Guidelines for Protrusions Annex A21.6 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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