G13 氧化物、单质 标准查询与下载



共找到 546 条与 氧化物、单质 相关的标准,共 37

Testing of oxidic raw materials and basic materials - General bases of work for X-ray fluorescence method (XRF) - General survey on disintegration methods referred to groups of materials for the determination of test specimens for XRF

ICS
71.060.20
CCS
G13
发布
2003-08
实施

この規格は,電池に用いるアセチレンブラック(以下,電池用アセチレンブラックというについて規定する。

Acetylene Black for Batteries

ICS
29.220.01;71.060.10
CCS
G13
发布
2003-05-20
实施

この規格は,エンドトキシンの試験に用いる水について規定する。

Water used for bacterial endotoxins test

ICS
71.040.30
CCS
G13
发布
2003-05-20
实施

Sodium silicate solutions have application in the water treatment industry as an ingredient of activated silica coagulant aids, for the control of corrosion, and as a stabilizing agent for iron and manganese.

Liquid Sodium Silicate

ICS
71.060.10
CCS
G13
发布
2003-01-19
实施

This test method is used to measure the surface area of precipitated, hydrated silicas that is available to the nitrogen molecule using the multipoint (B. E. T.) method. Solids adsorb nitrogen and, under specific conditions, the adsorbed molecules approach a monomolecular layer. The quantity in this hypothetical monomolecular layer is calculated using the BET equation. Combining this with the area occupied by the nitrogen molecule yields the total surface area of the solid. This test method measures the estimated quantity of nitrogen in the monomolecular layer by adsorption at liquid nitrogen temperature and at several (at least five) partial pressures of nitrogen. Before a surface area determination can be made it is necessary that the silica be stripped of any material which may already be adsorbed on the surface. The stripping of adsorbed foreign material eliminates two potential errors. The first error is associated with the weight of the foreign material. The second error is associated with the surface area that the foreign material occupies.1.1 This test method covers a procedure which is used to measure the surface area of precipitated hydrated silicas by the conventional Brunauer, Emmett, and Teller (BET) theory of multilayer gas adsorption behavior using multipoint determinations, similar to that used for carbon black in Test Methods D 4820. This test method specifies the sample preparation and treatment, instrument calibrations, required accuracy and precision of experimental data, and calculations of the surface area results from the obtained data. 1.2 This test method is used to determine the nitrogen surface area of precipitated silicas with specific surface areas in the range of 1 to 50 hm2/kg (10 to 500 m2/g). 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. The minimum safety equipment should include protective gloves, sturdy eye and face protection, and means to deal safely with accidental mercury spills.

Standard Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption

ICS
71.060.20
CCS
G13
发布
2003
实施

Specific gravity is an important property of fluids being related to density and viscosity. Knowing the specific gravity will allow determination of a fluidrsquo;characteristics compared to a standard, usually water, at a specified temperature. This will allow the user to determine if the test fluid will be heavier or lighter than the standard fluid.1.1 These test methods cover the determination of the specific gravity of water and brine free of separable oil, as follows:SectionsTest Method A-Pycnometer7 to 11, 21Test Method B-Balance12 to 16, 21Test Method C-Erlenmeyer Flask17 to 21Test Method D-Hydrometer22 to 271.2 Test Methods A and B are applicable to clear waters or those containing only a moderate amount of particulate matter. Test Method B is preferred for samples of sea water or brines and is more sensitive than Test Method D which has the same general application. Test Method C is intended for samples of water containing mud or sludge.1.3 It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.1.4 The test method was tested at 22716;C over a range, shown in , of 1.0252 through 1.2299; all data were corrected to 15.6176;C (60176;F).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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Specific Gravity of Water and Brine

ICS
13.060.50 (Examination of water for chemical subst
CCS
G13
发布
2003
实施

This method compares the performance of granular or pelletized activated carbons used in odor control applications, such as sewage treatment plants, pump stations, etc. The method determines the relative breakthrough performance of activated carbon for removing hydrogen sulfide from a humidified gas stream. Other organic contaminants present in field operations may affect the H2S breakthrough capacity of the carbon; these are not addressed by this test. This test does not simulate actual conditions encountered in an odor control application, and is therefore meant only to compare the hydrogen sulfide breakthrough capacities of different carbons under the conditions of the laboratory test. This test does not duplicate conditions that an adsorber would encounter in practical service. The mass transfer zone in the 23 cm column used in this test is proportionally much larger than that in the typical bed used in industrial applications. This difference favors a carbon that functions more rapidly for removal of H2S over a carbon with slower kinetics. Also, the 1 % H2S challenge gas concentration used here engenders a significant temperature rise in the carbon bed. This effect may also differentiate between carbons in a way that is not reflected in the conditions of practical service. This standard as written is applicable only to granular and pelletized activated carbons with mean particle diameters less than 2.5 mm. Application of this standard to activated carbons with mean particle diameters (MPD) greater than 2.5 mm will require a larger diameter adsorption column. The ratio of column inside diameter to MPD should be greater than 10 in order to avoid wall effects. In these cases it is suggested that bed superficial velocity and contact time be held invariant at the conditions specified in this standard (4.77 cm/sec and 4.8 sec). Although not covered by this standard, data obtained from these tests may be reported as in paragraph 12 along with additional information about column diameter, volume of carbon, and volumetric flow rate used. For pelletized carbons, it is felt that the equivalent spherical diameter of the pellet is the most suitable parameter for determining the appropriate adsorption column inside diameter. The equivalent spherical diameter is calculated according to the following equation. where: d= the diameter, and h= the length of the pellet in mm.An average of 50 to 100 measurements is recommended to determine the average length of a pellet. Annex A3 is a table to guide the user in selecting bed diameter and flow rates from typical equivalent diameters (or MPD) of pelletized carbon.1.1 This test method is intended to evaluate the performance of virgin, newly impregnated or in-service, granular or pelletized activated carbon for the removal of hydrogen sulfide from an air stream, under the laboratory test conditions described herein. A humidified air stream containing 1 % (by volume) hydrogen sulfide is passed through a carbon bed until 50 ppm breakthrough of H2S is observed. The H2S adsorption capacity of the carbon per unit volume at 99.5 % removal efficiency (g H2S/cm3 carbon) is then calculated. This test is not necessarily applicable to non-carbon adsorptive materials. 1.2 This standard as written is applicable only to granular and pelletized activated carbons with mean particle diameters (MPD) less than 2.......

Standard Test Method for Determination of the Accelerated Hydrogen Sulfide Breakthrough Capacity of Granular and Pelletized Activated Carbon

ICS
11.080.20 (Disinfectants and antiseptics)
CCS
G13
发布
2003
实施

Granular activated carbon (GAC) is commonly used to remove contaminants from water. However if not used properly, GAC can not only be expensive but can at times be ineffective. The development of engineering data for the design of full-scale adsorbers often requires time-consuming and expensive pilot plant studies. This rapid standard practice has been developed to predict adsorption in large-scale adsorbers based upon results from small column testing. In contrast to pilot plant studies, the small-scale column test presented in this practice does not allow for a running evaluation of factors that may affect GAC performance over time. Such factors may include, for example, an increased removal of target compounds by bacterial colonizing GAC or long term fouling of GAC caused by inorganic compounds or background organic matter . Nevertheless, this practice offers more relevant operational data than isotherm testing without the principal drawbacks of pilot plant studies, namely time and expense; and unlike pilot plant studies, small scale studies can be performed in a laboratory using water sampled from a remote location. This practice known as the rapid small-scale column test (RSSCT) uses empty bed contact time (EBCT) and hydraulic loading to describe the adsorption process. Mean carbon particle diameter is used to scale RSSCT results to predict the performance of a full-scale adsorber. This practice can be used to compare the effectiveness of different activated carbons for the removal of contaminants from a common water stream.1.1 This practice covers a test method for the evaluation of granular activated carbon (GAC) for the adsorption of soluble pollutants from water. This practice can be used to estimate the operating capacities of virgin and reactivated granular activated carbons. The results obtained from the small-scale column testing can be used to predict the adsorption of target compounds on GAC in a large column or full scale adsorber application. 1.2 This practice can be applied to all types of water including synthetically contaminated water (prepared by spiking high purity water with selected contaminants), potable waters, industrial waste waters, sanitary wastes and effluent waters. 1.3 This practice is useful for the determination of breakthrough curves for specific contaminants in water, the determination of the lengths of the adsorbates mass transfer zones (MTZ) and the prediction of GAC usage rates for larger scale adsorbers. 1.4 The following safety caveat applies to the procedure section, Section 10, of this practice: 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 Practice for the Prediction of Contaminant Adsorption On GAC In Aqueous Systems Using Rapid Small-Scale Column Tests

ICS
91.090 (External structures)
CCS
G13
发布
2003
实施

Caustic hurned magnesia for magnesium oxychloride cement products

ICS
CCS
G13
发布
2002-09-02
实施
2002-11-01

この規格は,超純水中のほう素の試験方法について規定する。備考この方法は,超純水以外の精製した水に含まれるほう素の試験にも適用できる。

Testing method for determination of boron in highly purified water

ICS
13.060.50;71.040.40
CCS
G13
发布
2002-08-20
实施

이 규격은 정보 기술 장치에서 방사되는 소음의 측정 및 보고에 관한 절차를 규정한다.

Acoustics-Measurement of airborne noise emitted by information technology and telecommunications equipment

ICS
35.020;17.140.20
CCS
G13
发布
2002-08-05
实施
2002-08-05

This standard describes sulfur dioxide, a compressed, nonflammable liquified gas, for use in the treatment of municipal and industrial water supplies to remove excess residual chlorine.

Sulfur Dioxide

ICS
71.060.10
CCS
G13
发布
2002-08-01
实施

Raw materials for elastomer industry - Carbon black vocabulary.

ICS
83.040.20;01.040.83
CCS
G13
发布
2002-03-01
实施
2002-03-05

本标准规定了工业二氧化硫脲的要求、试验方法、检验规则以及标志、标签、包装、运输和贮存。 本标准适用于工业二氧化硫脲。该产品主要用于化工行业、化纤行业、纺织工业和造纸工业等。

Thiourea dioxide for industrial use

ICS
71.060.20
CCS
G13
发布
2002-01-24
实施
2002-07-01

この規格は,X線回折装置を用いた窒化けい素の相組成分折方法について規定する.

Methods for the quantitative phase analysis of silicon nitride

ICS
77.040.30;77.150.99
CCS
G13
发布
2002-01-20
实施

Method for the sampling and sample preparation of silicon carbide packed in metricton bags for import and export

ICS
CCS
G13
发布
2002-01-16
实施
2002-06-01

Determination of aluminium oxide in silicon carbide for import and export.Spectrophotometric method

ICS
CCS
G13
发布
2002-01-16
实施
2002-06-01

1.1 This set of guidelines is offered to users of activated carbon to provide a better understanding of the reactivation process and some of the problems associated with sending carbon off-site or to a third party for thermal reactivation. It is not intended to serve as an operating procedure for those companies or persons that actually operate reactivation facilities. This is true because each reactivation facility is unique, using different types of furnaces, using various operating and performance requirements, and running spent activated carbons either in aggregate pools (combining different suppliers of carbon) or in custom segregated lots. Additionally, proprietary information for each facility relative to the particular equipment used cannot be addressed in a general set of guidelines.1.2 This standard does not purport to address any environmental regulatory concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate practices for reactivation prior to use.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 requirements prior to use.

Standard Guide for Carbon Reactivation

ICS
71.060.10 (Chemical elements)
CCS
G13
发布
2002
实施

The determination of trace impurities (on the order of parts per billion) in ultra-pure water places extreme requirements on all aspects of the analytical system. This is particularly true when ubiquitous species such as sodium and chloride are of interest because they can potentially be introduced as contaminants at almost every step of an analytical procedure. Contamination can occur during sample collection, during sample storage by leaching of improperly cleaned containers, during sample transfer, and by handling with pipets, syringes, etc., and during the actual analysis by contaminated reagents and sample cells and loop systems. It is also possible that trace contaminants can be lost from samples by volatilization or precipitation, by diffusion into the matrix of the container material, and by “plating out” on the walls of sampling lines by flow phenomena. Strict adherence to a given procedure is necessary to achieve good results at trace levels of analysis because very small differences in procedure execution will affect precision and the addition or loss of nanogram amounts of analyte may affect the accuracy of a determination.1.1 This practice covers concepts for handling ultra-pure water samples needed for the measurement of ever-decreasing levels of specified impurities that are encountered in the operation of modern high-pressure boilers and turbines. The handling of blanks associated with the analysis of ultra-pure water samples is also covered by this practice. The techniques presented can help the investigator increase the accuracy of analyses performed.1.2 This practice is applicable to water and steam samples from "zero solids treated" once-through or drum-type boilers, reactor coolant water, electronic grade water, or any other process water where analyte concentrations are in the low parts per billion (micrograms per litre) range.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 5.2.3.5, 5.1, and 5.3.7.

Standard Practice for Handling of Ultra-Pure Water Samples

ICS
13.060.30 (Sewage water)
CCS
G13
发布
2002
实施

1.1 This practice covers concepts for handling ultra-pure water samples needed for the measurement of ever-decreasing levels of specified impurities that are encountered in the operation of modern high-pressure boilers and turbines. The handling of blanks associated with the analysis of ultra-pure water samples is also covered by this practice. The techniques presented can help the investigator increase the accuracy of analyses performed.1.2 This practice is applicable to water and steam samples from "zero solids treated" once-through or drum-type boilers, reactor coolant water, electronic grade water, or any other process water where analyte concentrations are in the low parts per billion (micrograms per litre) range.1.3 This standard does not purport to address all of the safety problems, 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 5.2.3.5, 5.1, and 5.3.7.

Standard Practice for Handling of Ultra-Pure Water Samples

ICS
13.060.30 (Sewage water)
CCS
G13
发布
2002
实施



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