4.1 This test method does not require an overall rigid standardization of the apparatus. Samples are tested either unconfined or confined in confinement cups. For confined tests, some of the important cup parameters, such as cup material, cup wall thickness, and fit between the cup and the striking pin, are standardized. Data generated from unconfined and confined tests will not, in general, exhibit the same relative scale of sensitivities, and must be identified as confined or unconfined data and compared separately.4.2 This test method applies to all testing where the intent is to establish a relative sensitivity scale for hazardous materials. It is not intended to prohibit testing process-thickness samples nor prohibit the use of other than standard tool masses and striking diameters to generate data for special purposes or for in-house comparisons. In addition, the test method is not intended to restrict the generation of results at other than the H50 point as may be desirable for hazard analysis techniques.4.3 The normalized data will serve as a measure of the relative sensitivities of hazardous materials at the 50 % probability of reaction level. The normalized H50 values can also be used in conjunction with additional data relating to other probability of reaction levels (not a part of this test method) to assess hazards associated with the manufacture, transportation, storage, and use of hazardous materials.1.1 This test method2, 3 is designed to determine the relative sensitivities of solid-phase hazardous materials to drop weight impact stimulus. For liquid-phase materials refer to Test Method D2540.1.2 This standard may involve hazardous materials, operations, and equipment. 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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5.1 This test method is useful in characterizing pitches as one element in establishing uniformity of shipments and sources of supply. With this method, the density is determined to two decimal places, which is sufficient for most applications. If a more precise measurement is required (three decimal places), use Test Methods D2320 or D71.1.1 This test method covers the determination of pitch density by helium pycnometer. It is applicable at a range of room temperatures of 15 °C to 35 °C.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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This specification focuses on the classification, and requirements and test methods for the material and properties of solid plastic shapes manufactured from ultra-high-molecular-weight polyethylene (UHMW-PE), both virgin and recycled. The properties included in this specification are those required for the compositions covered and are derived from molded samples or fabricated from sheet, rod and profiles. The mechanical properties for which the materials shall be tested on and shall accordingly adhere to are elongation stress, elongation at break, and Izod impact strength.1.1 This specification covers requirements and test methods for the material and properties of solid plastic shapes manufactured from UHMW-PE.1.2 The properties included in this specification are those required for the compositions covered and are derived from molded samples or fabricated from sheet, rod and profiles. Requirements necessary to identify particular characteristics important to specialized applications are described by using the classification system given in Section 4.1.3 This specification allows for the use of recycled plastics (as defined in Guide D5033).1.4 The values are stated in SI units and are to be regarded as the standard in all property tables. For reference purposes, English units are also included in Table S-UHMW-PE and Table A and are not necessarily exact equivalents.1.5 The following precautionary caveat pertains only to the test method portions 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 and health practices and determine the applicability of regulatory requirements prior to use.NOTE 1: There is no known ISO equivalent to this standard.

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This practice is intended for use in resource recovery and other types of solid waste processing facilities. The occupational health risks in such facilities are not well documented and the purpose of this practice is to facilitate recording of information that can be useful in assessing the occupational health significance of working in these facilities.The records developed and maintained in accordance with this practice can be used as a basis for spotting trends (if any) in the types or frequency, or both, of injuries and illnesses. This information may, in combination with data on environmental health conditions within a waste processing facility, be useful in identifying possible cause/effect relationships.This practice is not intended as a design guide for an occupational health and safety program but rather is intended to build upon existing occupational health programs and to utilize currently available health and environmental records.1.1 The purpose of this practice is to provide guidance to solid waste processing facility managers responsible for maintaining records of the health and safety experience of their employees. This practice describes general principles for establishing a procedure to collect and document health and safety data within a solid waste processing facility and provides specific information on the forms and procedures to be used in recording illnesses among employees.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 and health practices and determine the applicability of regulatory limitations prior to use.

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4.1 Compliance with regulations often requires the determination of whether a material is a liquid or a solid. A similar test is used by the U.S. Department of Transportation for this purpose.1.1 This test method covers the determination of whether a viscous material is a liquid or a solid for regulatory purposes.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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 Scope These requirements apply to manually lighted, natural gas, decorative gas appliances for installation in solid-fuel burning fireplaces, (see Part IV, Definitions), hereinafter referred to as appliances, for use with natural gas only, at a ma

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Scope Details test and examination criteria for manually lighted,natural gas,decorative gas appliances for installation in solid-fuel burning fireplaces for use with natural gas only at a maximun input ratings of 90,000 Btu/hr. These appliances do not in

定价： 774元 / 折扣价： 658 元

Scope Details test and examination criteria for manually lighted, natural gas, decorative gas appliances for installation in solid-fuel burning fireplaces for use with natural gas only at a maximum input ratings of 90,000 Btu/hr. These appliances do n

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4.1 The concentration of tannins in solid, pasty, and powdered extracts needs to be reduced to analytical strength for tannin analyses.4.2 Vegetable tannin extracts are heterogeneous mixtures of components with varying solubility.4.3 The solubility of such extracts is influenced by temperature and concentration, which affect the degree of dispersion and size of the component particles.4.4 Since extracts have greater solubility in hot water than cold, it is desirable to dissolve and disperse an extract in hot water and then let the solution cool slowly to standard room temperature.4.5 It is often difficult to reduce samples of solid and particularly pasty extracts to specimen size and at the same time ensure representative sampling. Therefore, caution is advised in drawing conclusions on the precision and bias of the results obtained on such extracts; where difficulties in sample preparation are experienced, little confidence can be placed in the results.1.1 This practice covers a standard procedure for use in preparing the analytical solution required for the analysis of solid, pasty, or powdered vegetable tannin extracts.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 Values of density are used for converting volumes to units of mass, and for correcting measured volumes from the temperature of measurement to a standard temperature using Practice D4311/D4311M.5.2 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 evaluation and controlling some of these factors.1.1 This test method covers the determination of the specific gravity (relative density) and density of semi-solid asphalt binder by use of a pycnometer.NOTE 1: An alternate method for determining the specific gravity or density of asphalt binder is Test Method D3289. An alternate method for determining density of asphalt binder is Test Method D8188. For materials which are too fluid for use of this test method, use Test Method D3142/D3142M.NOTE 2: This test method may also be used for the determination of the specific gravity (relative density) and density of soft tar pitches.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.1.3 Warning—Mercury has been designated by the United States Environmental Protection Agency (EPA) and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) for details and the EPA’s website (www.epa.gov/mercury/faq.htm) for additional information. Users should be aware that selling mercury, mercury-containing products, or both, in your state may be prohibited by state law.1.4 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.1.5 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.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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