71.040.40 化学分析 标准查询与下载



共找到 2467 条与 化学分析 相关的标准,共 165

Surface chemical analysis — X-ray photoelectron spectroscopy — Procedures for determining backgrounds

ICS
71.040.40
CCS
发布
2023-06
实施

Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures

ICS
71.040.40
CCS
发布
2023-06
实施

Surface chemical analysis — Auger electron spectroscopy and X-ray photoelectron spectroscopy — Guide to the use of experimentally determined relative sensitivity factors for the quantitative analysis of homogeneous materials

ICS
71.040.40
CCS
发布
2023-06
实施

Surface Chemical Analysis — Measurement of lateral and axial resolutions of Raman microscope

ICS
71.040.40
CCS
发布
2023-06
实施

Surface chemical analysis — scanning probe microscopy — Guideline for experimental quantification of carrier concentration in semiconductor devices by using electric scanning probe microscopy

ICS
71.040.40
CCS
发布
2023-06
实施

Gas analysis — Conversion of gas mixture composition data

ICS
71.040.40
CCS
发布
2023-06
实施

Gas analysis — Preparation of calibration gas mixtures — Part 2: Gravimetric method for Class II mixtures

ICS
71.040.40
CCS
发布
2023-06
实施

本文件规定了粉末压片—X射线荧光光谱法测定煤矸石样品中的三氧化二铝、氧化钙、三氧化二铁、氧化钾、氧化镁、氧化钠、二氧化硅、二氧化钛、五氧化二磷、氧化锰等10个成分量的原理、试剂和材料、仪器、试样制备、分析步骤、结果计算、精密度和准确度。  本文件适用于煤矸石样品中三氧化二铝、氧化钙、三氧化二铁、氧化钾、氧化镁、氧化钠、二氧化硅、二氧化钛、五氧化二磷、氧化锰等10个成分量的测定。

Determination of Major Elements in Coal Gangue by Powder Compression-X-ray Fluorescence Spectrometry

ICS
71.040.40
CCS
C252
发布
2023-05-11
实施
2023-05-15

规定了采用己内酰胺制备己二胺工艺所得的6-氨基己腈的气相色谱分析方法。

Analysis of industrial 6-aminohexonitrile by gas chromatography

ICS
71.040.40
CCS
C265
发布
2023-04-16
实施
2023-04-19

1.1 This test method covers the determination of the iron content of bisphenol A (4,4'-isopropylidenediphenol). 1.2 This test method has a lower detection limit of 0.1 mg ⁄kg, and an upper limit of 10 mg ⁄kg of iron in bisphenol A. If the iron (Fe) content is higher, it may be necessary to dilute the sample. A longer path length cell can also be used for better accuracy at lower Fe levels, as well as calibration within the range expected (for example, 0 mg ⁄kg to 1 mg/kg versus 0 mg ⁄kg to 10 mg/kg for samples expected to be in the 0 mg ⁄kg to 1 mg/kg range. 1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limits prior to use. For a specific hazard statement, see Section 9. 1.6 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 Iron Content of Bisphenol A (4,4 - Isopropylidenediphenol)

ICS
71.040.40
CCS
发布
2023-04-01
实施

1.1 This guide describes procedures for the preparation of test samples collected from such locations as streams, rivers, ponds, lakes, estuaries, oceans, and toxicity tests and is applicable to such organisms as plankton, mollusks, fish, and plants. 1.2 The procedures are applicable to the determination of volatile, semivolatile, and nonvolatile inorganic constituents of biological materials. Analyses may be carried out or reported on either a dry or wet basis. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see 9.3.3. 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 Guide for Preparation of Biological Samples for Inorganic Chemical Analysis

ICS
71.040.40
CCS
发布
2023-04-01
实施

1.1 These test methods cover the determination of hydroxyl groups attached to primary and secondary carbon atoms in aliphatic and alicyclic compounds and phenols. 1.2 Three test methods are given as follows: Sections Test Method A (Pressure Bottle Method) 8 – 14 Test Method B (Reflux Method) 16 – 22 Test Method C (Perchloric Acid Catalyzed Method) 24 – 30 1.2.1 Test Method A is recommended for general use. Test Method B is included to give a standard procedure for the method that has been used widely. Test Method C is recommended when the results are required in a minimum period of time or where ambient temperature for the reaction is desired. 1.2.2 The results obtained using Test Methods A and B will be essentially the same, but the results obtained using Test Method C will be higher (up to approximately 4 % relative) than those obtained using the other two methods. 1.2.3 Statements on precision are included with each test method. The precision of Test Methods A and C is consistent over a wide range of hydroxyl content (tested over hydroxyl number range of 250 to 1600), whereas Test Method B is less precise at the higher hydroxyl content level than it is at the lower hydroxyl content level. In general, Test Method A is approximately two-fold as precise as Test Method C. Test Method B has approximately the same precision as Test Method C at the lower hydroxyl content level but poorer precision at the higher hydroxyl content level. 1.2.4 The interferences are essentially the same for the three methods. Some compounds can be analyzed using Test Methods A or B but not using Test Method C because of interfering reactions of the strong acid catalyst with the compound being analyzed or the acetate product formed in the determination. However, because of its increased reactivity, Test Method C is applicable for determination of some compounds, particularly sterically hindered secondary alcohols, which react too slowly or not at all in Test Methods A and B. NOTE 1—Other methods for determination of hydroxyl groups are given in Test Methods D1957, D2195, E326, E335, and E567. 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 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded in accordance with the rounding off methods of Practice E29. 1.5 Review the current appropriate Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.6 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. Specific hazards statements are given in Section 7. 1.7 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 Methods for Hydroxyl Groups Using Acetic Anhydride Acetylation

ICS
71.040.40
CCS
发布
2023-04-01
实施

本文件规定了采用顶空气相色谱法测定乙烯基硅油、甲基乙烯基硅橡胶中乙烯基含量(-CH=CH2的质量分数)的方法,包括原理、试剂、仪器等的相关规定。

Determination of vinyl content in vinyl silicone oil and methyl vinyl silicone rubber by headspace gas chromatography

ICS
71.040.40
CCS
C261
发布
2023-03-31
实施
2023-04-05

本文件规定了采用顶空气相色谱法测定含氢硅油中含氢量(Si-H 中 H 的质量分数)的方法。 本文件适用于高含氢硅油、低含氢硅油、端含氢硅油中含氢量的检测。

Determination of Hydrogen Content in Hydrogen Silicone Oil by Headspace Gas Chromatography

ICS
71.040.40
CCS
C261
发布
2023-03-31
实施
2023-04-05

该技术规程明确了一次性系统及组件供应商进行可提取物检测的范围和标准,以期对其使用者的相容性评价提供最有价值的帮助。

Guideline for extractables testing of polymeric single-use components used in pharmaceutical manufacturing

ICS
71.040.40
CCS
C292
发布
2023-03-23
实施
2023-03-23

BS ISO 18118. Surface chemical analysis. Auger electron spectroscopy and X-ray photoelectron spectroscopy. Guide to the use of experimentally determined relative sensitivity factors for the quantitative analysis of homogeneous materials

ICS
71.040.40
CCS
发布
2023-03-22
实施
2023-03-22

1.1 This practice describes a procedure for the determination of residual contamination in materials to be used within or in contact with hardware requiring a high level of cleanliness, such as components for oxygen service, by Soxhlet extraction. 1.2 This practice may be used for extracting nonvolatile and semivolatile residues from solids such as new and used gloves, new and used wipers, contaminated test specimens or control coupons, small piece parts (metallic or nonmetallic), etc. When used with proposed consumable cleaning materials (wipers, gloves, etc.), this practice may be used to determine the potential of the proposed solvent to extract contaminants (plasticizers, residual detergents, brighteners, etc.) from the cleaning material and deposit them on the surface being cleaned. 1.3 This practice is not suitable for the evaluation of particulate contamination. 1.4 The values stated in SI units are standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 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 Practice for Determination of Soluble Residual Contamination by Soxhlet Extraction

ICS
71.040.40
CCS
发布
2023-03-01
实施

本文件规定了采用电感耦合等离子体原子发射光谱法测定钒酸钠中硅、铝、钙、铁、铅、锰、铬、钛、砷、钼、铜、磷含量的原理、试剂和试料、仪器及设备、样品、试验步骤、分析结果的计算、精密度和试验报告。 本文件适用于钒酸钠及其溶液中硅、铝、钙、铁、铅、锰、铬、钛、砷、钼、铜、磷等杂质元素含量的测定,测定范围见表1。任一元素含量超过测定范围上限可参照本文件。

Methods for chemical analysis of sodium vanadate—Part 3: Determination of silicon,aluminum,etc. 12 impurity elements content —Inductively coupled plasma

ICS
71.040.40
CCS
M745
发布
2023-02-28
实施
2023-03-07

1   Scope This document gives guidance and requirements on the optimization of sputter-depth profiling parameters using appropriate single-layered and multilayered reference materials, in order to achieve optimum depth resolution as a function of instrument settings in Auger electron spectroscopy, X-ray photoelectron spectroscopy and secondary ion mass spectrometry. This document is not intended to cover the use of special multilayered systems such as delta doped layers.

Surface chemical analysis. Sputter depth profiling. Optimization using layered systems as reference materials

ICS
71.040.40
CCS
发布
2023-02-28
实施
2023-02-28

BS ISO 7431-1. Thiourea for industrial use - Part 1. Test methods

ICS
71.040.40
CCS
发布
2023-02-21
实施
2023-02-21



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