71.060.10 化学元素 标准查询与下载



共找到 392 条与 化学元素 相关的标准,共 27

1.1 This test method covers the determination of moisture and residue in liquid chlorine. Lower limits of detection of 10 µg/g based on a 150-mL sample are achievable. 1.2 This test method describes operations and special apparatus for sampling liquid chlorine from cylinders. Sampling other commercial facilities such as tank cars, barges, and storage tanks require special techniques of manipulation in filling sample cylinders for testing. If conditions and facilities are favorable, the analysis apparatus may be connected directly to these larger storage and transportation units and on-the-spot tests may be completed. 1.3 The analytical methods are empirical and are gravimetric. They are applicable to the determination of the residue and moisture content of commercial grades of liquid chlorine (condensed gaseous product). 1.4 Residue is defined as being those substances which remain in the sample flask after sample volatilization under the conditions of the test. Moisture is defined as the volatile substances evolved during volatilization and purging of the sample-residue flask and absorbed on the desiccant contained in the absorption tubes under the conditions of the test. Some of the volatile chlorinated hydrocarbons may also be evolved from the sample residue flask during purge and absorbed, thus contributing to the apparent moisture analysis value. 1.5 This test method may be used for determining the moisture content only of gaseous chlorine if suitable and appropriate modifications are made for sample measurement and calculation. 1.6 Review the current Safety Data Sheet (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.7 The values stated in inch-pound units are to be regarded as the standard. No other units of measurement are included in this standard. 1.8 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. Specific hazards statements are given in Section 7. 1.9 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.

Standard Test Method for Moisture and Residue in Liquid Chlorine

ICS
71.060.10
CCS
发布
2017-07-01
实施

1.1 This test method covers sampling and analysis of liquid chlorine for the determination of oxygen (200 to 400 µg/g), nitrogen (400 to 800 µg/g), and carbon dioxide (800 to 1000 ppm) content at levels normally seen in liquid chlorine. Hydrogen and carbon monoxide concentrations in liquid chlorine are typically at or below the detection limit of this test method. NOTE 1—The minimum detection limit of hydrogen using a 1 cm3 gas sample and argon carrier gas is 100 to 200 µg/g.2 The detection limit for the other components is significantly lower. 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 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 7. 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.

Standard Test Method for Sampling and Analysis of Liquid Chlorine for Gaseous Impurities

ICS
71.060.10
CCS
发布
2017-07-01
实施

1.1 This test method is designed for the determination of carbon tetrachloride (CCl4) and chloroform (CHCl3) in liquid chlorine. The lower limit of detection is dependent on the sample size and the instrument used; five ppm (w/w) is achievable. 1.2 Review the current Safety Data Sheet (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 7 and in 9.2.3. 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.

Standard Test Method for Carbon Tetrachloride and Chloroform in Liquid Chlorine by Direct Injection (Gas Chromatographic Procedure)

ICS
71.060.10
CCS
发布
2017-07-01
实施

Standard Test Method for Thermal Diffusivity of Carbon and Graphite by Thermal Pulse Method

ICS
71.060.10
CCS
Q51
发布
2017-05-01
实施

Argon

ICS
71.060.10
CCS
G86
发布
2017-03-21
实施

Oxygen

ICS
71.060.10
CCS
G86
发布
2017-03-21
实施

Standard Test Method for Carbon Tetrachloride and Chloroform in Liquid Chlorine by Direct Injection (Gas Chromatographic Procedure)

ICS
71.060.10
CCS
发布
2017-03-01
实施

Standard Test Method for Moisture and Residue in Liquid Chlorine

ICS
71.060.10
CCS
发布
2017-03-01
实施

Standard Test Method for Sampling and Analysis of Liquid Chlorine for Gaseous Impurities

ICS
71.060.10
CCS
发布
2017-03-01
实施

Standard Test Method for Bromine in Chlorine

ICS
71.060.10
CCS
发布
2017-03-01
实施

4.1 This test method is used to measure the total and external surface area of carbon blacks based on multipoint nitrogen adsorption. The NSA measurement is based on the B.E.T. theory and it includes the total surface area, inclusive of micropores, pore diameters less than 2 nm (20 Å). The external surface area, based on the statistical thickness method (STSA), is defined as the specific surface area that is accessible to rubber. 4.2 CTAB Surface Area (formerly Test Method D3765) has been withdrawn. The CTAB value may be estimated from the STSA value using Eq 1. The equation is based on a linear regression of the STSA and CTAB measured values of the SRB 5 standards. 1.1 This test method covers the determination of the total surface area by the Brunauer, Emmett, and Teller (B.E.T. NSA) theory of multilayer gas adsorption behavior using multipoint determinations and the external surface area based on the statistical thickness surface area method. 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. (The minimum safety equipment should include protective gloves, sturdy eye and face protection). 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.

Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption

ICS
71.060.10
CCS
G49
发布
2017
实施

This International Standard specifies a method for the determination of the chlorine content by volume in liquid chlorine for industrial use, after vaporization of the product.

Liquid chlorine for industrial use -- Determination of the content of chlorine by volume in the vaporized product

ICS
71.060.10
CCS
发布
2016-12-22
实施

1.1 This guide covers procedures for the impregnation of graphite with molten salt under a consistent pressure and temperature. Such procedures are necessary if the user wishes to prepare graphite specimens for testing that have been exposed to a molten salt environment that may not necessarily represent material exposed to an operating reactor environment. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this guide. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Guide for Impregnation of Graphite with Molten Salt

ICS
71.060.10
CCS
发布
2016-12-01
实施

1.1 This guide provides general tutorial information regarding the application of conventional nondestructive evaluation technologies (NDE) to nuclear grade graphite. An introduction will be provided to the characteristics of graphite that defines the inspection technologies that can be applied and the limitations imposed by the microstructure. This guide does not provide specific techniques or acceptance criteria for end-user examinations but is intended to provide information that will assist in identifying and developing suitable approaches. 1.2 The values stated in SI units are to be regarded as the standard. 1.2.1 Exception—Alternative units provided 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Guide for Nondestructive Evaluation of Nuclear Grade Graphite

ICS
71.060.10
CCS
发布
2016-12-01
实施

1.1 This specification covers industrial grade chlorine normally available as a liquid in pressurized metal containers. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling and safety precautions. 1.4 The following safety hazards caveat pertains only to the test methods listed in Sections 3 and 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Specification for Liquid Chlorine

ICS
71.060.10
CCS
发布
2016-11-01
实施

Low arsenic yellow phosphorus

ICS
71.060.10
CCS
G13
发布
2016-10-22
实施
2017-04-01

Sulfur powder for fruit trees

ICS
71.060.10
CCS
G13
发布
2016-10-22
实施
2017-04-01

Sulfur powder for fireworks and firecrackers

ICS
71.060.10
CCS
G13
发布
2016-10-22
实施
2017-04-01

1.1 This test method covers determination of the dynamic elastic properties of isotropic and near isotropic carbon and graphite materials at ambient temperatures. Specimens of these materials possess specific mechanical resonant frequencies that are determined by the elastic modulus, mass, and geometry of the test specimen. The dynamic elastic properties of a material can therefore be computed if the geometry, mass, and mechanical resonant frequencies of a suitable (rectangular or cylindrical) test specimen of that material can be measured. Dynamic Young’s modulus is determined using the resonant frequency in the flexural or longitudinal mode of vibration. The dynamic shear modulus, or modulus of rigidity, is found using torsional resonant vibrations. Dynamic Young’s modulus and dynamic shear modulus are used to compute Poisson’s ratio. 1.2 This test method determines elastic properties by measuring the fundamental resonant frequency of test specimens of suitable geometry by exciting them mechanically by a singular elastic strike with an impulse tool. Specimen supports, impulse locations, and signal pick-up points are selected to induce and measure specific modes of the transient vibrations. A transducer (for example, contact accelerometer or non-contacting microphone) senses the resulting mechanical vibrations of the specimen and transforms them into electric signals. (See Fig. 1.) The transient signals are analyzed, and the fundamental resonant frequency is isolated and measured by the signal analyzer, which provides a numerical reading that is (or is proportional to) either the frequency or the period of the specimen vibration. The appropriate fundamental resonant frequencies, dimensions, and mass of the specimen are used to calculate dynamic Young’s modulus, dynamic shear modulus, and Poisson’s ratio. Annex A1 contains an alternative approach using continuous excitation. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance

ICS
71.060.10
CCS
发布
2016-10-01
实施

Determination of phosphorus and arsenic in industrial yellow phosphorus by energy dispersive X-ray fluorescence spectrometry

ICS
71.060.10
CCS
G13
发布
2016-08-23
实施
2017-03-01



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