G74 催化剂基础标准与通用方法 标准查询与下载

ASTM D3989-01 EDTA法涂料催干剂中稀土金属总量的标准试验方法

1.1 This test method covers the titrimetric determination of rare earth metals in liquid rare earth metal driers and utilizes the disodium salt of ethylenediaminetetraacetic acid dihydrate (EDTA). 1.2 This test method is limited to the determination of the rare earth metal content of a liquid rare earth metal drier that does not contain other drier elements. The method is not applicable to drier blends. 1.3 This test method has been tested in concentrations of 6% cerium and 6% rare earth metals, but there is no reason to believe that it is not suitable for higher or lower drier metal concentrations provided specimen size is adjusted accordingly. 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 Total Rare Earth Metals in Paint Driers by EDTA Method

ASTM D5757-00(2006) 用气流测定粉末催化剂的磨损和其特性表征的标准试验方法

This test method is intended to provide information concerning the ability of a powdered catalyst to resist particle size reduction during use in a fluidized environment. This test method is suitable for specification acceptance, manufacturing control, and research and development purposes.1.1 This test method covers the determination of the relative attrition characteristics of powdered catalysts by means of air jet attrition. It is applicable to spherically or irregularly shaped particles which range in size between 10 and 180 m, have skeletal densities between 2.4 and 3.0 g/cm3 (2400 and 3000 kg/m3) (see IEEE/ASTM SI-10) and are insoluble in water. Particles less than 20 m are considered fines.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 Determination of Attrition and Abrasion of Powdered Catalysts by Air Jets

ASTM D4464-00 激光散射测定催化材料粒度分布的标准试验方法

1.1 This test method covers the determination of the particle size distribution of catalyst and catalyst carrier particles and is one of several found valuable for the measurement of particle size. The range of particle sizes investigated was 20 to 150-[mu]m equivalent spherical diameter. The technique is capable of measuring particles above and below this range. The angle and intensity of laser light scattered by the particles are selectively measured to permit calculation of a volume distribution using light-scattering techniques. 1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Particle Size Distribution of Catalytic Material by Laser Light Scattering

ASTM D3943-00 新制氧化铝基催化剂中总钼量的标准试验方法

1.1 This test method covers the determination of molybdenum in alumina-base catalysts and has been cooperatively tested at molybdenum concentrations from 8 to 18 weight%, expressed as MoO 3 . Any component of the catalyst other than molybdenum such as iron, tungsten, etc., which is capable of being oxidized by either ferric or ceric ions after being passed through a zinc-amalgam reductor column (Jones reductor) will interfere. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts

ASTM D5757-00 用气流测定粉末催化剂的磨损和其特性表征的标准试验方法

1.1 This test method covers the determination of the relative attrition characteristics of powdered catalysts by means of air jet attrition. It is applicable to spherically or irregularly shaped particles which range in size between 10 and 180 um, have skeletal densities between 2.4 and 3.0 g/cm3 (2400 and 3000 kg/m3) and are insoluble in water. Particles less than 20 um are considered fines. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determination of Attrition and Abrasion of Powdered Catalysts by Air Jets

ASTM D4464-00(2005) 激光散射测定催化材料粒度分布的标准试验方法

It is important to recognize that the results obtained by this test method or any other method for particle size determination utilizing different physical principles may disagree. The results are strongly influenced by physical principles employed by each method of particle size analysis. The results of any particle sizing method should be used only in a relative sense and should not be regarded as absolute when comparing results obtained by other methods. Light scattering theories (Fraunhofer Diffraction3 and Mie Scattering4 ) that are used for determination of particle size has been available for many years. Several manufacturers of testing equipment now have units based on these principles. Although each type of testing equipment utilizes the same basic principles for light scattering as a function of particle size, different assumptions pertinent to application of the theory and different models for converting light measurements to particle size, may lead to different results for each instrument. Furthermore, any particles which are outside the size measurement range of the instrument will be ignored, causing an increase in the reported percentages within the detectable range. A particle size distribution which ends abruptly at the detection limit of the instrument may indicate that particles outside the range are present. Therefore, use of this test method cannot guarantee directly comparable results from different types of instruments. This test method can be used to determine particle size distributions of catalysts and supports for materials specifications, manufacturing control, and research and development work.1.1 This test method covers the determination of the particle size distribution of catalyst and catalyst carrier particles and is one of several found valuable for the measurement of particle size. The range of particle sizes investigated was 30 to 300 956;m equivalent spherical diameter. The technique is capable of measuring particles above and below this range. The angle and intensity of laser light scattered by the particles are selectively measured to permit calculation of a volume distribution using light-scattering techniques.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Particle Size Distribution of Catalytic Material by Laser Light Scattering

HG/T 3590-1999 制冷系统用分子筛干燥剂抗磨耗性能的试验方法

本标准规定了制冷系统用分子筛干燥剂抗磨耗性能的试验方法。 本标准适用于制冷系统中与制冷工质符合相容性要求的分子筛干燥剂抗磨耗性能的试验。

Test method of Attrition of molecular Sieve Desiccant Used in Refrigeration System

HG/T 2976-1999 化肥催化剂磨耗率测定

本标准规定了化肥催化剂磨耗率测定的仪器设备、样品的准备、测定步骤和测定结果的表述。 本标准适用于化肥催化剂圆柱形、条形、无定形、环形和球形等颗粒的磨耗率测定。

Determination for attrition and abrasion of fertilizer catalyst

ASTM D4781-99 精制催化剂粒子和催化剂载体粒子的机械抽头衬料密度的标准试验方法

1.1 This test method covers the determination of the mechanically tapped packing density of fine catalyst and catalyst carrier particles smaller than 0.8 mm in diameter. 1.2 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.

Standard Test Method for Mechanically Tapped Packing Density of Fine Catalyst Particles and Catalyst Carrier Particles

ASTM D4699-99 大颗粒催化剂振动存储密度的标准试验方法

1.1 This test method covers the determination of the vibratory packing density of formed catalyst and catalyst carrier particles that will not break up significantly under test conditions. For the purpose of this test, catalyst particles are defined as extrudates, spheres or formed pellets greater than 4.8 mm ( 3/16 in.). 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Vibratory Packing Density of Large Formed Catalyst and Catalyst Particles

ASTM D3908-99 容量真空法测定以氧化铝为载体的铂催化剂氢化学吸附性的试验方法

1.1 This test method covers the determination of the chemisorption of hydrogen at 298 K (25176C) on supported platinum catalysts that have been reduced in flowing hydrogen at 723 K (450176C). It incorporates a static volumetric vacuum technique at constant volume. 1.2 The test method is intended for use on unused supported platinum on alumina catalysts of loadings greater than 0.3 weight %. Data on other supports and lower platinum loadings were not tested. 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.

Standard Test Method for Hydrogen Chemisorption on Supported Platinum on Alumina Catalysts and Catalyst Carriers By Volumetric Vacuum Method

ASTM D3663-99 催化剂的表面面积的标准试验方法

1.1 This test method covers the determination of surface areas of catalyst and catalyst carriers that have Type II or IV nitrogen adsorption isotherms, and at least 1 m /g of area. A volumetric measuring system is used to obtain at least four data points which fit on the linear BET line. 1.2 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.

Standard Test Method for Surface Area of Catalysts and Catalyst Carriers

ASTM D4567-99 连续流动法单点测定用氮吸附的催化剂和催化剂载体比表面积的标准试验方法

1.1 This test method covers the single-point determination of the surface area of catalysts and catalyst carriers that exhibit Type II or Type IV nitrogen adsorption isotherms using a nitrogen-helium flowing gas mixture. This test method is applicable for the determination of total surface areas from 0.1 to 300 m , where rapid surface area determinations are desired. 1.2 Since the single-point method uses an approximation of the BET equation, the multipoint BET method (D3663) is preferred to the single-point method. 1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Single-Point Determination of Specific Surface Area of Catalysts and Catalyst Carriers Using Nitrogen Adsorption by Continuous Flow Method

ASTM D4164-99 成型催化剂和催化剂载体的机械压实后堆集密度的标准试验方法

1.1 This test method covers the determination of the mechanically tapped density of formed catalyst and catalyst carriers. For the purpose of this test method, catalyst particles are defined as extrudates, spheres, or formed pellets of 0.8 to 4.8-mm ( 1/32 to 3/16-in.) nominal diameter. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Mechanically Tapped Packing Density of Formed Catalyst and Catalyst Carriers

ASTM D4512-99 粉状和细颗粒催化剂振动表观存储密度的标准试验方法

1.1 This test method covers the determination of the apparent packing density of fine catalyst and catalyst carrier powders smaller than 0.8 mm in diameter. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Vibrated Apparent Packing Density of Fine Catalyst and Catalyst Carrier Particles and Powder

SH/T 0666-1998 石油炼制催化剂分类

Petroleum Refining Catalyst Classification

ASTM D4222-98 静态体积测量法测定催化剂氮吸附和解附等温线的标准试验方法

1.1 This test method covers the determination of nitrogen adsorption and desorption isotherms of catalysts and catalyst carriers at the boiling point of liquid nitrogen. A static volumetric measuring system is used to obtain about thirty equilibrium adsorption points on each branch of the isotherm, these points being evenly spread over the isotherm. 1.2 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.

Standard Test Method for Determination of Nitrogen Adsorption and Desorption Isotherms of Catalysts By Static Volumetric Measurements

ASTM D4513-97(2006) 筛分法测定催化材料的粒度分布的标准试验方法

This test method can be used to determine particle size distributions of catalysts and supports for materials specifications, manufacturing control, and research and development work.1.1 This test method covers the determination of particle size distribution of catalytic powder material using a sieving instrument and is one of several found valuable for the measurement of particle size. This test method is particularly suitable for particles in the 20 to 420-m range.1.2 si-value;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 Particle Size Distribution of Catalytic Materials by Sieving

ASTM D4481-97 活性铝基催化剂中总镍含量的标准试验方法

1.1 This test method covers the determination of nickel in fresh alumina-base catalysts and has been cooperatively tested at nickel concentrations from 2.5 to 60 weight %, expressed as nickel oxide (NiO). 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 and health practices and determine the applicability of regulatory limitations prior to its use.

Standard Test Method for Total Nickel in Fresh Alumina-Base Catalysts

ASTM D4513-97 筛分法测定催化材料的粒度分布的标准试验方法

1.1 This test method covers the determination of particle size distribution of catalytic powder material using a sieving instrument and is one of several found valuable for the measurement of particle size. This test method is particularly suitable for particles in the 20 to 420-956;m range. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Particle Size Distribution of Catalytic Materials by Sieving