머리말
ISO (국제 표준화기구) 국가 표준 기관의 글로벌 연합입니다. (ISO 회원국). 국제 표준 개발은 일반적으로 ISO 기술 위원회를 통해 수행됩니다.. 기술위원회가 설립된 주제에 관심이 있는 각 회원 기관은 해당 위원회에 대표될 권리가 있습니다.. ISO와 연락을 취하는 국제 정부 및 비정부 조직도 ​​이 작업에 참여합니다.. ISO는 국제전기기술위원회(International Electrotechnical Commission)와 긴밀히 협력하고 있습니다. (IEC) 전기기술 표준화에 관한 모든 문제에 대해.

이 문서를 개발하는 데 사용된 절차와 추가 유지 관리에 사용된 절차는 파트에 설명되어 있습니다. 1 ISO/IEC 지침의. 특히, 다양한 유형의 ISO 문서에 필요한 다양한 승인 표준에 유의하세요.. 이 문서는 Part의 편집규칙에 따라 작성되었습니다. 2 ISO/IEC 지침의 (iso.org/directives를 참조하세요.).

이 문서의 특정 내용에는 특허권이 적용될 수 있습니다.. ISO는 그러한 특허의 일부 또는 전부를 식별할 책임이 없습니다.. 문서를 준비하는 동안 확인된 특허권에 대한 세부 정보는 ISO가 받은 특허 청구서 소개 및/또는 목록에 나와 있습니다. (iso.org/patents 참조).

이 문서에 사용된 상호는 사용자의 편의를 위해 제공된 정보이며 보증을 의미하지 않습니다..

Voluntary, related standards and conformity assessment related ISO specific and express the meaning of terminology as well as in relevant ISO technical barriers to trade (TBT) adhere to the principle of the world trade organization (WTO) information, 다음 URL을 참고해주세요:iso.org/iso/foreword.html.

This document has been prepared by the ISO/TC 256 Technical Committee on Pigments, Dyes and Fillers.

Any feedback or questions about this document should be directed to the user’s national standards body. A complete list of these institutions can be found at iso.org/members.html.

ISO 21683-2019 “페인트에서 시뮬레이션된 나노 물체 방출, 바니시, 안료 및 필러 측정 실험의 착색 플라스틱”

소개하다
Nanoobjects (nanoscale pigments and fillers) may be released from paints, varnishes and tinted plastics into the surrounding air or liquid, which is an important health and safety consideration for the end user and the environment. 그러므로, it is important to obtain data on the tendency of tinted coatings and plastics to release nanoobjects so that exposure can be assessed, controlled and minimized [10]. The properties may depend on the physical and chemical properties of the nano-object and the matrix containing the nano-object.

The methods currently available to assess the tendency of pigments, varnishes and plastics to release nano-objects into the air require energy to be applied to the sample to induce wear, erosion or comminentation, which causes the particles to diffuse into the gas phase, 즉., produce aerosols.

Due to its high sensitivity, particle number concentration and quantity weighted particle size distributions are necessary to quantify the release of nano-objects, because particle mass depends on cubic particle size and the mass concentration of nano-objects is too low to detect them with currently commercially available instruments. Further measurements, such as total particle surface concentration, such as references [11] 그리고 [12], may help explain, 예를 들어, health aspects. If the shape, morphology, 다공성, and density of the granular material is known, it can be accurately converted to different quantity types by measuring the total particle size distribution.

In addition to selecting the appropriate measuring instrument, a quantitative assessment of process-induced particle release requires detailed information about the sample, the stresses introduced, and the type of interconnection with the instrument. 수치 1 shows, 예를 들어, the single stages that need to be considered when quantitatively characterizing particulate matter release in the air.

1 범위
This document specifies a method for experimentally determining the release of nanoscale pigments and fillers into the environment under mechanical stresses of paints, varnishes and tinted plastics.

The method is used to assess whether and how many particles of defined size and distribution are released from the surface and released into the environment under stress (type and height of applied energy).

Samples are aged, weathered or otherwise conditioned to simulate the entire life cycle.

2 규범적 참고자료
다음 파일은 내용의 일부 또는 전체가 이 문서의 요구 사항을 구성하는 방식으로 텍스트에서 참조됩니다.. 날짜가 있는 참고자료의 경우, 인용 전용 버전 적용. 날짜가 없는 참고자료의 경우, 참조의 새 버전 (모든 개정 내용 포함) 적용됩니다.

ISO 9276-1, Representation of the results of particle size analysis – 부분 1: Graphical representation

ISO/TS 80004-1, nanotechnology — 어휘 — 부분 1: Core terminology

ISO/TS 80004-2, nanotechnology — 어휘 — 부분 2: Nano-objects

ISO 21683-2019 “페인트에서 시뮬레이션된 나노 물체 방출, 바니시, 안료 및 필러 측정 실험의 착색 플라스틱”

3 용어 및 정의
이 문서의 목적을 위해, the terms and definitions given in ISO/TS 80004-1, ISO/TS 80004-2 다음 기사가 적용됩니다.

3.1 General terms and definitions

3.1.1 Aerosol

A system of solid or liquid particles suspended in a gas

[원천: ISO 15900:2009, 2.1]

3.1.2 nanometer scale

The length ranges from about 1 nm to 100 nm

메모 1: Attributes that are not extrapolated from larger sizes are mainly represented within this length range.

[원천: ISO/TS 80004-1:2015, 2.1]

3.1.3 Nanoparticles

For nanoobjects (3.1.4), all external dimensions are at the nanoscale (3.1.2), where there is no significant difference between the length of the longest axis and the shortest axis of the nanoobject

메모 1: If the size difference is large (usually more than 3x), terms such as nanofibers or nanoplates may be superior to the term nanoparticles.

[원천: ISO/TS 80004-2:2015, 4.4]

3.1.4 Nano objects

Nanoscale discrete materials with one, two or three external dimensions (3.1.2)

메모 1: The second and third outer dimensions are orthogonal to the first dimension and to each other.

[원천: ISO/TS 80004-1:2015, 2.5]

3.1.5 페인트

Tinted coating material that, when applied to the substrate, forms an opaque dry film with protective, decorative or specific technical properties

[원천: ISO 4618:2014, 2.184]

3.1.6 Equivalent spherical diameter x

The diameter of the sphere has the same physical properties as the particle in the measurement

메모 1: 예를 들어, the physical properties are the same as the sedimentation rate or the displacement volume or projection area of the electrolyte solution under the microscope.

메모 2: The physical property referred to by equivalent diameter should be denoted by an appropriate subscript, 예를 들어. x S for equivalent surface area diameter or xV for equivalent volume diameter.

[원천: ISO 26824:2013, 1.6]

3.1.7 Particle Size Distribution. PSD

The cumulative distribution of material fractions less than a given particle size (size too small), expressed by the distribution density of material fractions in an equivalent spherical diameter or other linear size or size class divided by the width of that class

메모 1: Particle size distribution is described in ISO 9276-1.

3.1.8 Condensed particle counter

Instrument for measuring aerosol particle Number Concentration (3.1.1)

메모 1: Particle sizes detected are usually less than a few hundred nanometers and larger than a few nanometers.

메모 2: CPC is a possible detector for use with DEMC.

메모 3: 일부 경우에, a condensed particle counter may be called a condensed matter kernel counter (CNC).

[원천: ISO 15900:2009, 2.5]

3.1.9 Differential electromobility Classifier

A classifier that can select aerosol (3.1.1) particles based on electromobility and deliver them to the outlet

메모 1: DEMC classifies aerosol particle sizes by balancing the electrical power on each particle with its aerodynamic drag in the electric field. The classified particles fall within a narrow range of electromobility determined by the operating conditions and physical size of the DEMC, and they can have different sizes due to the amount of charge they have.

[원천: ISO 15900:2009, 2.7]

3.1.10 Differential mobility analysis system DMAS

System for measuring submicron aerosol (3.1.1) 입자 크기 분포, consisting of DEMC, 유량계, particle detector, interconnect pipe, computer and suitable software

[원천: ISO 15900:2009, 2.8]

3.2 Specific terms and definitions

3.2.1 Particle release in paints, 바니시와 플라스틱

Materials are transferred from paints, varnishes and plastics to liquids or gases due to mechanical stresses

3.2.2 Particle number release n

The total number of particles in a specified size range released from the sample due to mechanical stress

3.2.3 The number of particles in a specific area releases nA

Particle number release (3.2.2), divided by the stressed surface area of the sample

3.2.4 Mass ratio particle number release

Particle number release (3.2.2), divided by the mass of material removed

3.2.5 Total volume flow

Volume flow, which absorbs all air transport emissions at the particle source and transfers them

3.2.6 Particle number concentration nV

Particles per volume of air

3.2.7 Process concentration

Particle number concentration (3.2.6), total volume velocity (3.2.5) and particle number release (3.2.2) due to mechanical stress on the sample

3.2.8 Measuring concentration

The particle number concentration (3.2.6) was calibrated against a specified process concentration dilution (3.2.7) to establish better conditions for aerosol analysis

3.2.9 Concentration of sample room

Particle number concentration (3.2.6), which results from the release of particle number in a specific area under better mixing conditions at specified room heights (3.2.3)

메모 1: Intermodel concentrations are independent of the selected test conditions and represent reference concentrations for actual particle number concentrations (예를 들어, particle pollution in the laboratory) when heights between models are carefully selected.

표준정보 부분만 공개. 전체 내용을 보시려면, 공식 채널을 통해 표준을 구매해야 합니다..