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Version Date User Field ID Field Difference
2 2021-08-12 16:02 hbenko 194 Identifier (e.g. document designation number)
-21236 +21236-1
      195 Title of document
-Nanotechnologies: nanoclays: characteristics and measurements +Nanotechnologies — Clay nanomaterials — Part 1: Specification of characteristics and measurement methods for layered clay nanomaterials
      196 Scope/description
-This Standard specifies various characteristics/properties of nanoclays and their relevantmeasurement methods for nanoclays/organoclays as important group of layered nanostructuredsilicates. Addressing specifications include structural, physical and chemical properties includingbasal d-spacing, crystal lattice structure, dimensions, surface polarity and cation exchangecapacity. However, this document does not consider specific characteristics for the health andsafety issues. +This document specifies characteristics to be measured of layered clay nanomaterials in powder form and chemically modified ones, and describes their relevant measurement methods.This document does not deal with health, safety and environmental issues.
      197 Keywords
-nanoclays, nanostructured materials, physical, chemical properties +clay nanomaterials, nanostructured materials, physical, chemical properties
      198 Publication year
- +2019
      213 URL Link
- +https://webstore.ansi.org/Standards/ISO/ISOTS212362019
      214 Anticipated publication year
-2017 +
      215 Select Document Category
-Document Awaiting to be Published +Published Document
      223 Contact for additional comments and inquiries
-Jie Gao, gaoj@nanoctr.cn (Secretary, ISO/TC 229 WG 4) +Donghui Zhang, zhangdh@nanoctr.cn (Secretary, ISO/TC 229 WG 4)
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