N60 实验室仪器与真空仪器综合 标准查询与下载

CB 3521-1993 水电解制氢装置通用技术条件

本标准规定了工业用压滤式水电解制氢装置的技术要求、试验方法和检验规则等。 本标准适用于工业用压滤式水电解制氢装置。

General technical requirements for water electrolysis hydrogen production device

ASTM E1511-93(2000) 液相和离子色谱法用导电检波器试验的标准实施规程

1.1 This practice covers the testing of the performance of conductivity detectors used as the detection component of a liquid or ion chromatography system. 1.2 The values stated in SI units are to be regarded as the standard.

Standard Practice for Testing Conductivity Detectors Used in Liquid and Ion Chromatography

ASTM E1511-93(2005) 液相和离子色谱法用导电检波器试验的标准实施规程

This practice is intended to describe the performance of a conductivity detector independent of the chromatographic system in terms that the analyst can use to predict overall system performance when the detector is coupled to the column and other chromatography system components. Although it is possible to observe each of the several characteristics of a detector under different and unique conditions, it is the intent of this practice that a complete set of detector specifications should be obtained at the same operating conditions, including the setup used for testing, flow rates, and temperatures. It should be noted that to specify a detectorrsquo;capability completely, its performance should be measured at several sets of conditions within the useful range of the detector. The terms and tests described in this practice are sufficiently general so that they may be used at whatever conditions may be chosen for other reasons.1.1 This practice covers the testing of the performance of conductivity detectors used as the detection component of a liquid or ion chromatography system.1.2 The values stated in SI units are to be regarded as the standard.

Standard Practice for Testing Conductivity Detectors Used in Liquid and Ion Chromatography

ASTM E1511-93 液相和离子色谱法用导电检波器试验的标准实施规程

1.1 This practice covers the testing of the performance of conductivity detectors used as the detection component of a liquid or ion chromatography system. 1.2 The values stated in SI units are to be regarded as the standard.

Standard Practice for Testing Conductivity Detectors Used in Liquid and Ion Chromatography

QB 1504-1992 实验室玻璃仪器 互换锥形磨砂接头

本标准规定了实验室应用的四种系列互换锥形磨砂接头的基本尺寸、技术要求及试验方法。 本标准适用于玻璃仪器使用的互换锥形磨砂接头．也适用于互换锥形透明接头。

Interchangeable conical frosted joints for laboratory glass instruments

DIN 12898:1992 实验室用水管龙头.出水嘴

Laboratory taps; outlet nozzles

DZ/T 0016-1991 实验室用摇床

本标准规定了实验室用摇床的结构型式、系列及主要技术参数、型号编制方法、技术要求、试验方法及检验规则、标志与包装等要求。 本标准适用于地质、冶金、煤炭等部门实验室对细粒稀有金属、黑色金属、有色金属、贵金属等矿石和煤的选别研究、试验及矿物和其他物质分选的实验室用摇床(以下简称“摇床”）。

laboratory shaker

BS 3202-1:1991 实验室设备与配件.第1部分:总则

Definitions, regulations, general considerations of safety in relation to storage and services. Includes the index to parts 1 - 4 inclusive.

Laboratory furniture and fittings. Introduction

BS 3202-2:1991 实验室设备与配件.第2部分:性能规范

Specifies strength and stability of laboratory furniture and performance of exposed surfaces for three grades of severity in use. Includes manufacturing dimensional tolerances and test methods. Does not deal with ancillary spaces and specialised laboratories. To be read in conjunction with BS 3202-1

Laboratory furniture and fittings - Specification for performance

STAS 12905-1990 蔬菜水果产品．有机金属农药残留测定

Prezentul standard stabile?te matoda prin eromatografie m faz? gazoas? de determinare a reziduurilor de pesticide organofosforice din legume ?i fructa proaspete, din produse de legume ?i fructe (conserve de legumi ?n ap?. ?n saramur?, ?n o?et, sui de toma

Vegetable and fruit products. Organophosphoric pesticide residues determination

ASTM E1343-90(2001) 平板超滤膜的分子量界限评定的测试方法

This test method provides a convenient, rapid, reproducible method of comparing the intrinsic properties of ultrafiltration membranes. The use of nonfouling dextrans allows a direct comparison of membranes without interference from materials that may foul one membrane and not affect another. The degree of correlation between this test and actual performance on a commercial feed stream has not been completely established; however, a membrane can be exposed to the fouling solution in question and then the effect of that foulant determined by then running the test and comparing to the results on an appropriate unfouled membrane. It should be made clear that this test method does not substitute for the actual testing of a commercial or experimental membrane on a feed stream of interest. The low transmembrane pressures, lack of adsorption of the test permeants onto the membrane, and low recovery/pass are intended to eliminate interferences such as polarization and fouling that mask the properties of the membrane. It is likely that any system operated in a commercial fashion will experience fouling, adsorption, and polarization to some degree as well as a “compaction” phenomenon over the first several h of operation.1.1 This test method covers the evaluation of the molecular weight cutoff of flat sheet ultrafiltration membranes with cutoffs between 4500 and 1000000 daltons. The nonadsorbing characteristics of the test penetrant utilized by this test method permit the test to be performed on a wide variety of membrane substrates, excluding those which strongly adsorb dextran, from highly hydrophilic to highly hydrophobic. This test method is not applicable for microfiltration membranes with pore sizes of 0.01 181m or larger, nor for reverse osmosis or dialysis membranes with less than 4500 molecular weight cutoff. (It is possible that this test method could be modified to expand the range from 100 to 2 000 000 daltons.) This test method is not applicable to membrane materials that strongly adsorb dextrans since these materials will potentially change the value of the measured molecular weight cutoff and hence will invalidate the test results. 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 Molecular Weight Cutoff Evaluation of Flat Sheet Ultrafiltration Membranes

ASTM E1343-90(1997)e1 平板超滤膜分子量筛截评估的标准试验方法

1.1 This test method covers the evaluation of the molecular weight cutoff of flat sheet ultrafiltration membranes with cutoffs between 4500 and 1000000 daltons. The nonadsorbing characteristics of the test penetrant utilized by this test method permit the test to be performed on a wide variety of membrane substrates, excluding those which strongly adsorb dextran, from highly hydrophilic to highly hydrophobic. This test method is not applicable for microfiltration membranes with pore sizes of 0.01 181m or larger, nor for reverse osmosis or dialysis membranes with less than 4500 molecular weight cutoff. (It is possible that this test method could be modified to expand the range from 100 to 2 000 000 daltons.) This test method is not applicable to membrane materials that strongly adsorb dextrans since these materials will potentially change the value of the measured molecular weight cutoff and hence will invalidate the test results. 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 Molecular Weight Cutoff Evaluation of Flat Sheet Ultrafiltration Membranes

NF X50-062:1989 实验室评定的通用标准

General criteria for the assessment of testing laboratories.

NF X50-061:1989 实验室经营管理的通用标准

GENERAL CRITERIA FOR THE OPERATION OF TESTING LABORATORIES. (EUROPEAN STANDARD EN 45001).

NF X15-203:1987 实验室设备.废气室.概述.分类.定义.规范

LABORATORY EQUIPMENT. FUME CUPBOARDS. GENERAL. CLASSIFICATION. DIMENSIONS. SPECIFICATIONS.

NF X15-204:1986 实验室设备.瓷砖试验台.试验方法

Laboratory equipment. Benches. Test methods.

NF X15-202:1986 实验室设备.器具.概述、分类、尺寸、规范

Laboratory equipment. Furnitures. General. Classification. Dimensions. Specifications.

NF X15-201:1986 实验室设备.瓷砖试验台.概述.分类.定义.规范

Laboratory equipment. Benches. General. Classification. Dimensions. Specifications.

NF X15-205:1986 实验室设备.器具.试验方法

Laboratory equipment. Furnitures. Test methods.

NF B35-000:1983 实验室仪器.仪器物品.四国语言图解词汇

Laboratory apparatus - Items of apparatus - Quadrilingual illustrated vocabulary

Laboratory apparatus - Items of apparatus - Quadrilingual illustrated vocabulary