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GB/Z 43032-2023Nanotechnologies - Characterization of metal and metal-oxide nano-objects in water - Sample preparation (English PDF)

纳米技术水样中金属与金属氧化物纳米物体表征样品制备方法

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

September 7, 2023

Implementation date

April 1, 2024

Scope

GB/Z 43032-2023 is the English-translated version of 纳米技术水样中金属与金属氧化物纳米物体表征样品制备方法.

GB/Z 43032-2023 is the Chinese standard "Nanotechnologies - Characterization of metal and metal-oxide nano-objects in water - Sample preparation".

Its scope clause reads: This document describes the sample preparation methods (i.e. pretreatment and particle size sieving) used for analytical measurements of samples in water. its system Preparation methods include sample collection and storage, preconcentration and screening of various analytes.

This document is applicable to surface or drinking water containing corresponding quantities and types of metal and metal oxide nanoobjects. Its clauses include normative reference documents; terms and definitions.

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Document preview — GB/Z 43032-2023

National Standard of the People's Republic of China

ICS: 07.030
Classification: C 04

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative reference documents
3 Terms and Definitions
4 Abbreviations
5 Types of metal-based and metal oxide-based artificial nanoobjects
6 Water matrix type
7 Sample collection and storage
7.1 General
7.2 Sample collection and storage containers
8 Sample pretreatment
8.1 Overview
8.2 Sedimentation and centrifugation
8.2.1 Settlement
8.2.2 Centrifugation
8.2.3 Stepwise sedimentation and centrifugation
8.2.4 Factors affecting centrifugation and sedimentation
8.2.5 Advantages and limitations of centrifugation
8.3 Filter
9 Particle size classification technology
9.1 Overview
9.2 Field Flow Separation (FFF)
9.2.1 Overview
9.2.2 Advantages and limitations
9.3 Ultrafiltration (UF)
9.4 Size Exclusion Chromatography (SEC)
Appendix A (informative) Related nano-object characterization techniques

1 Scope

This document describes the sample preparation methods (i.e. pretreatment and particle size sieving) used for analytical measurements of samples in water. its system

Preparation methods include sample collection and storage, preconcentration and screening of various analytes.

This document is applicable to surface or drinking water containing corresponding quantities and types of metal and metal oxide nanoobjects.

2 Normative reference documents

This document has no normative references.

3 Terms and definitions

The following terms and definitions apply to this document.

3.1

Nanomaterials with specific functions or compositions manufactured for commercial purposes.

[Source. GB/T 30544.1-2014,2.9]

3.2 measured measurerand

The quantity to be measured.

[Source. ISO /IEC Guide99.2007,2.3, modified]

3.3 nano-object

An object with one, two, or three external dimensions at the nanometer scale.

Note. A general term used for all nanoscale objects that are separated from each other.

[Source. GB/T 30544.1-2014,2.5]

3.4

Materials with nanostructures inside or on their surface.

Note. This definition does not exclude the possibility that nanometer objects (3.3) have internal or surface nanostructures. If the outer dimension(s) are on the nanometer scale degree, the term “nanoobject” is recommended.

[Source. GB/T 30544.1-2014,2.7]

3.5 surface water

Water that flows or remains on the surface of land.

[Source. ISO 13164-1.2013,3.1.20]

GB/T 36388 | YBB 2027 | YBB 6006 | GB/T 46333 | GB/T 45633 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

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