G76 水处理剂基础标准与通用方法 标准查询与下载

HG/T 3526-2003 工业循环冷却水中亚硝酸盐的测定.分光光度法

Industrial circulating cooling water-Determination of nitrite-Molecular absorption spectrometric method

ASTM D3467-04(2009) 活性炭的四氯化碳活性标准试验方法

Activity as measured by this test method is basically a measure of the pore volume of the activated carbon sample. This test method is therefore a means of determining the degree of completion of the activation process, hence a useful means of quality control for gas-phase activated carbons. This activity number does not necessarily provide an absolute or relative measure of the effectiveness of the tested carbon on other adsorbates, or at other conditions of operation. 1.1 This test method covers the determination of the activation level of activated carbon. Carbon tetrachloride (CCl4) activity is defined herein as the ratio (in percent) of the weight of CCl4 adsorbed by an activated carbon sample to the weight of the sample, when the carbon is saturated with CCl4 under conditions listed in this test method. 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 7.

Standard Test Method for Carbon Tetrachloride Activity of Activated Carbon

ASTM D3467-04 活性碳的四氯化碳活性的标准试验方法

Activity as measured by this test method is basically a measure of the pore volume of the activated carbon sample. This test method is therefore a means of determining the degree of completion of the activation process, hence a useful means of quality control for gas-phase activated carbons. This activity number does not necessarily provide an absolute or relative measure of the effectiveness of the tested carbon on other adsorbates, or at other conditions of operation. 1.1 This test method covers the determination of the activation level of activated carbon. Carbon tetrachloride (CCl4) activity is defined herein as the ratio (in percent) of the weight of CCl 4 adsorbed by an activated carbon sample to the weight of the sample, when the carbon is saturated with CCl4 under conditions listed in this test method. 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. Specific hazards statements are given in Section 7.

Standard Test Method for Carbon Tetrachloride Activity of Activated Carbon

HG/T 3527-1985 工业循环冷却水中油含量测定方法

本方法适用于循环冷却水中油含量的测定。其含量为0.01～2mg/L。

Determination method of oil content in industrial circulating cooling water

EN 13176:2000 人类消耗用水的处理用化学试剂.酒精

This European Standard is applicable to synthetic ethanol used for treatment of water intended for human consumption. It describes the characteristics of synthetic ethanol and specifies the requirements and the corresponding test methods for synthetic ethanol. It gives information on its use in water treatment.

Chemicals Used for Treatment of Water Intended for Human Consumption - Ethanol

SY/T 6465-2000 泡沫排水采气用起泡剂评价方法

本标准规定了气井泡沫排水采气用起泡剂主要性能评价方法。 本标准适用于气井泡沫排水采气用起泡剂的评价和筛选。

Evaluation method for foaming agent of draiinaging gas recovery

ASTM D3467-99 活性碳的四氯化碳活性的标准试验方法

1.1 This test method covers the determination of the activation level of activated carbon. Carbon tetrachloride (CCl ) activity is defined herein as the ratio (in percent) of the weight of CCl adsorbed by an activated carbon sample to the weight of the sample, when the carbon is saturated with CCl under conditions listed in this test method. 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. Specific hazards statements are given in Section 7.

Standard Test Method for Carbon Tetrachloride Activity of Activated Carbon

HG 2762-1996 水处理剂产品分类和命名

本标准规定了水处理剂产品分类和命名的原则和方法。 本标准适用于水处理剂产品分类、命名的管理工作，也适用于识别水处理剂产品的基本性能。

Water treatment agent product classification and naming

ASTM D2854-96(2004) 活性碳的表面密度的标准试验方法

This test method provides a method for determining the packed density of a bed of granular activated carbon. Determination of the packed density is essential when designing vessels to hold the material and for ordering purposes when procuring materials to fill existing vessels. FIG. 1 Assembly of Apparatus1.1 This test method covers the determination of the apparent density of granular activated carbon. For purposes of this test method, granular activated carbon is defined as a minimum of 90% being larger than 80 mesh. 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 Apparent Density of Activated Carbon

ASTM D5160-95(2008) 活性碳气相吸收检验的标准指南

Activated carbon is used extensively for removing gases and vapors from air or other gas streams. The physical and chemical characteristics of an activated carbon can strongly influence its suitability for a given application. The procedure in this guide allows the evaluation of the dynamic adsorption characteristics of an activated carbon for a particular adsorbate under conditions chosen by the user. It is necessary that the user choose test conditions that are meaningful for the application (see Section 9). This guide can also be used to evaluate activated carbons that have been impregnated with materials to enhance their effectiveness at removing gases otherwise poorly adsorbed on activated carbon. The procedure given in this guide is not generally applicable for evaluation of carbons used as catalysts for such purposes as decomposition of low levels of ozone or oxidation of SO2 to SO 3. The procedure given in this guide can be applied to reactivated or regenerated activated carbons. Fig. 1 shows the adsorbate concentration profile in an activated carbon bed at breakthrough. The bed has a zone at the inlet in which the adsorbate concentration is equal to the influent concentration. In this region the carbon is at equilibrium with adsorbate. The adsorbate concentration in the remainder of the bed drops until at the outlet it is equal to the breakthrough concentration. The shorter the length of this mass transfer zone (adsorption zone), the more effectively the carbon in the bed is utilized. A bed whose depth is less than the length of this zone will show immediate appearance of adsorbate in the effluent (breakpoint). From the standpoint of best carbon utilization it is desirable to choose a carbon which will give as short a mass transfer zone as possible under use conditions. However, in many applications, high adsorptive capacity is more important than a short mass transfer zone. In almost every application, bed pressure drop is also a primary consideration. In a few situations such as respiratory protection against low levels of extremely toxic gases such as radioactive methyl iodide, a short mass transfer zone (that is, high adsorption rate coefficient) is more important than ultimate capacity. In other cases such as solvent recovery, a high dynamic capacity is more important. Although the design of adsorber beds is beyond the scope of this guide, the following points should be considered. The bed diameter should be as large as possible in order to lower the pressure drop and to maximize the amount of carbon in the bed. Subject to pressure drop constraints, the deepest possible carbon bed should be used. All else being equal, the use of smaller particle size carbon will shorten the mass transfer zone and improve bed efficiency at the expense of higher pressure drop. If pressure drop considerations are critical, some particle morphologies offer less resistance to flow than others. The two parameters obtained by the procedure in this guide can be used as an aid in selecting an activated carbon and in sizing the adsorption bed in which this carbon will be used. The best carbon for most applications should have a high dynamic capacity for the adsorbate No coupled with a short mass transfer zone (small dc) when evaluated under the operating conditions anticipated for the adsorber. FIG. 1 Concentration Profile of an Activated Carbon Bed at Breakthrough1.1 This guide covers the evaluation of activated carbons for gas-phase adsorption. It presents a procedure for determining the dynamic adsorption capacity, N

Standard Guide for Gas-Phase Adsorption Testing of Activated Carbon

ASTM D5160-95(2003) 活性碳气相吸收检验的标准指南

1.1 This guide covers the evaluation of activated carbons for gas-phase adsorption. It presents a procedure for determining the dynamic adsorption capacity, No, and critical bed depth, d c, for an activated carbon used to remove a specific adsorbate from a gas stream under conditions chosen by the user.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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 8.>

Standard Guide for Gas-Phase Adsorption Testing of Activated Carbon

ASTM D2866-94(2004) 活性碳的总灰分含量的标准试验方法

In specific end uses, the amount and composition of the ash may influence the capabilities and certain desired properties of activated carbon. 1.1 This test method describes a procedure for the determination of total ash content of activated carbon.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 deterrmine the applicability of regulatory limitations prior to use.

Standard Test Method for Total Ash Content of Activated Carbon

ASTM D4607-94(2006) 活性碳碘值测定的标准试验方法

The iodine number is a relative indicator of porosity in an activated carbon. It does not necessarily provide a measure of the carbonrsquo; ability to absorb other species. Iodine number may be used as an approximation of surface area for some types of activated carbons (see Test Method C 819). However, it must be realized that any relationship between surface area and iodine number cannot be generalized. It varies with changes in carbon raw material, processing conditions, and pore volume distribution (see Definitions D 2652). The presence of adsorbed volatiles, sulfur; and water extractables may affect the measured iodine number of an activated carbon. 1.1 This test method covers the determination of the relative activation level of unused or reactivated carbons by adsorption of iodine from aqueous solution. The amount of iodine absorbed (in milligrams) by 1 g of carbon using test conditions listed herein is called the iodine number.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. Specific hazard statements are given in Section 7.

Standard Test Method for Determination of Iodine Number of Activated Carbon

HG/T 2160-1991 冷却水动态模拟试验方法

本标准规定了敞开式循环冷却水动态模拟试验的适用范围、技术要求、试验方法。 本标准适用予敞开式循环冷却水系统中，金属材质(包括黑色、有色金属)间壁式换热设备在实验室内进行小型动态模拟试验，也适用于中型动态模拟试验。现场监测换热器试验亦可参照使用。

Cooling water dynamic simulation test method

HG/T 2024-1991 水处理药剂阻垢性能测定方法 鼓泡法

本标准规定了用鼓泡法测定水处理药剂抑制碳酸钙垢析出的阻垢性能的实验室方法。 本标准在原理上也适用于测定水处理药剂抑制碳酸锶或碳酸钡垢析出的阻垢性能。

Determination method of scale inhibition performance of water treatment chemicals by bubbling method