共找到 357 条与 物理学、化学 相关的标准,共 24 页
Fine bubble technology — Cleaning applications — Part 4: Test method for oil removal from polyester-based textile
Fine bubble technology — Agricultural applications — Part 4: Test method for evaluating the number concentration of ultrafine bubbles achieving the promotion of barley seed germination
Fine bubble technology — Water treatment applications — Part 2: Test methods using a test micro-organism: Escherichia coli
Fine bubble technology — General principles for usage and measurement of fine bubbles — Part 5: Shelled fine bubbles
BS ISO 7428-1. Fine bubble technology. Domestic applications - Part 1. Assessment of showerhead devices by evaluating size and concentration indices of generated fine bubbles
BS ISO 7429-1. Fine bubble technology. Industrial and consumer device applications - Part 1. Assessment of water pressure driven nozzles by evaluating size and concentration indices of generated fine bubbles
Fine bubble technology — Agricultural applications — Part 5: Guideline for promoting the germination of vegetable seeds using ultrafine bubbles
Fine bubble technology — Evaluation method for determining gas content in fine bubble dispersions in water — Part 2: Hydrogen content
Fine bubble technology — Environmental applications — Part 1: Inspection method using online particle counter in dissolved air flotation (DAF) plant
BS ISO 7392. Fine bubble technology. Evaluation method for determining surface tension of ultrafine bubble dispersions
BS ISO 7383. Fine bubble technology. Evaluation method for determining oxygen content in fine bubble dispersions in water
1 Scope This document specifies the evaluation of fine bubbles size and concentration indices applied to the combined use of number-based size analysis and volume-based size analysis by the laser diffraction method. The methodology described is appropriate to both bimodal and multimodal samples over a broad size range (from tens of nanometers to tens of micrometers) and applies to ultrafine bubble and microbubble dispersions ( MBD ) and mixtures thereof.
Fine bubble technology. Characterization of fine bubbles - Evaluation of size and concentration indices by laser diffraction method
This document specifies the evaluation of fine bubbles size and concentration indices applied to the combined use of number-based size analysis and volume-based size analysis by the laser diffraction method. The methodology described is appropriate to both bimodal and multimodal samples over a broad size range (from tens of nanometers to tens of micrometers) and applies to ultrafine bubble and microbubble dispersions (MBD) and mixtures thereof.
Fine bubble technology — Characterization of fine bubbles — Part 1: Evaluation of size and concentration indices by laser diffraction method
BS ISO 20480-5. Fine bubble technology. General principles for usage and measurement of fine bubbles - Part 5. Shelled fine bubbles
Nanomanufacturing - Key control characteristics - Part 5-4: Energy band gap measurement of nanomaterials by electron energy loss spectroscopy (EELS)
1.1 This test method covers the determination of the amount of liquid separated as an upper layer in a 24-h period from viscous solutions or dispersions that contain dispersed solids such as paints, enamels, pigmented lacquers, adhesives, polishes, and other similar materials. NOTE 1—The amount of clear liquid that separates during this test is one of the criteria in the United Nations Recommendations on the Transportation of Dangerous Goods2 for the placement of flammable viscous liquids into packing groups related to flash points (See 4.1). 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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 Determination of the Upper Layer Separated from a Viscous Liquid
BS ISO 20304-2. Fine bubble technology. Water treatment applications - Part 2. Test methods using a test micro-organism: Escherichia coli
Nanomanufacturing - Key control characteristics - Part 6-21: Graphene-based material - Elemental composition, C/O ratio: X-ray photoelectron spectroscopy
1.1 This guide provides concepts, terminology, symbols, and recommendations for the evaluation and expression of the uncertainty of radiochemical measurements of water and other environmental media by testing laboratories. It applies to measurements of radionuclide activities, including gross activities, regardless of whether they involve chemical preparation of the samples. 1.2 This guide does not provide a complete tutorial on measurement uncertainty. Interested readers should refer to the documents listed in Section 2 and References for more information. See, for example, GUM, QUAM, Taylor and Kuyatt (1)2 , and Chapter 19 of MARLAP (2). 1.3 The system of units for this guide is not specified. Dimensional quantities in the guide are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated. 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. 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 Evaluating and Expressing the Uncertainty of Radiochemical Measurements
Amendment 5 - International Electrotechnical Vocabulary (IEV) - Part 113: Physics for electrotechnology
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