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Resin identification code: History, Products, Measurement & Standards

A resin identification code (RIC) is a symbol embedded on plastic products, used to sort plastic waste for recycling. They consist of an equilateral triangle with a number inside indicating the product's resin content. These symbols were created in 1988 by the Plastics Industry Association in the United States, amid growing concerns about plastic…

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Resin identification code topic overview

The analysis highlights History, Products, Measurement and Standards as prominent areas in the source structure around Resin identification code.

Related topics
20
Source areas
4
Connected nodes
24
Extracted relationships
9
Concept neighborhoods
18
Bridge connections
24

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 13 topics
History · 3 topics
Criticism · 2 topics
Unicode · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Latest version
ASTM D7611/D7611M-26 24 July 2026
Organization
Society of the Plastics Industry (1988–2008) · ASTM International (2008–present)
Year started
1988

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Unicode

Criticism

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Resin identification code connects Entity context

The extracted context around Resin identification code shows recurring relationship patterns in the source. For example, Resin identification code → Miscellaneous Symbols, The, These, Unicode Another extracted example is Resin identification code → ASTM International (2008–present), Society of the Plastics Industry (1988–2008). Use these groups to spot repeated connection types before inspecting the individual relationships.

Resin identification code

Top relations

related to Unicode · 4
Resin identification code → Miscellaneous Symbols, The, These, Unicode
Organization · 2
Resin identification code → ASTM International (2008–present), Society of the Plastics Industry (1988–2008)
Latest version · 1
Resin identification code → ASTM D7611/D7611M-26 24 July 2026
Website · 1
Resin identification code → D7611/D7611M-26
Year started · 1
Resin identification code → 1988

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

recycling plastic resin plastics identification ric standard astm symbol triangle coding system consumers symbols codes 2008 products united states packaging

Resin identification code relationships Subject–Predicate–Object triples

TTTA extracted 9 structured relationships around Resin identification code. Examples in this analysis include Resin identification code → Latest version → ASTM D7611/D7611M-26 24 July 2026 and Resin identification code → Organization → Society of the Plastics Industry (1988–2008). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Resin identification codeLatest versionASTM D7611/D7611M-26 24 July 20261.00infobox
Resin identification codeOrganizationSociety of the Plastics Industry (1988–2008)1.00infobox
Resin identification codeOrganizationASTM International (2008–present)1.00infobox
Resin identification codeWebsiteD7611/D7611M-261.00infobox
Resin identification codeYear started19881.00infobox
Resin identification coderelated to UnicodeThe0.60section
Resin identification coderelated to UnicodeUnicode0.60section
Resin identification coderelated to UnicodeMiscellaneous Symbols0.60section
Resin identification coderelated to UnicodeThese0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Resin identification code bring nearby vocabulary together. In this analysis, examples include Resin, Articles and D7611. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Resin identification code
    • Resin
    • Articles
    • D7611
    • Manufactured
    • Practice
    • Astm
    • Coding
    • Standard
    • System
    • D7611m-26
    • Plastic
    • Ric
  • resin identification code
    • Resin
    • Articles
    • D7611
    • Manufactured
    • Practice
    • Astm
    • Coding
    • Standard
    • System
    • D7611m-26
    • Plastic
    • Unicode
  • plastic
    • Coding
    • Ric
    • Articles
    • Confusion
    • Consumer
    • D7611
    • Manufactured
    • Practice
    • Resin
    • Astm
    • Products
    • Standard
  • recycling
    • Plastics
    • Ric
    • Consumers
    • Symbol
    • Communities
    • Codes
    • Packaging
    • System
    • Resin
    • Also
    • Confusion
    • Consumer
  • resin
    • Articles
    • D7611
    • Manufactured
    • Practice
    • Astm
    • Coding
    • Standard
    • System
    • D7611m-26
    • Plastic
    • Ric
    • Unicode
  • plastics industry association
    • States
    • United
    • D7611m-26
    • System
    • Recycling
    • Industry
    • Plastics
    • Also
    • Articles
    • Communities
    • D7611
    • Manufactured
  • plastic pollution
    • Coding
    • Ric
    • Articles
    • Confusion
    • Consumer
    • D7611
    • Manufactured
    • Practice
    • Resin
    • Astm
    • Products
    • Standard
  • recycling codes
    • Symbols
    • Plastics
    • Ric
    • Consumers
    • Identification
    • Symbol
    • Communities
    • Resin
    • Codes
    • Packaging
    • Recycling
    • System

Connections between topic areas Semantic bridges

For Resin identification code, one of the stronger structural bridges in this analysis connects Resin identification code with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Resin identification code — Overview · splits 11 ⟂ 14
Resin identification code — History · splits 21 ⟂ 4
Resin identification code — Unicode · splits 22 ⟂ 3
Resin identification code — Criticism · splits 22 ⟂ 3

Map overview Semantic statistics

Resin identification code

Nodes25
Edges24
Triples9
Avg. degree1.92
Density0.08
Components1

Source & methodology

TTTA analyzes the structure around Resin identification code to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Products, Measurement & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Resin identification code · EN edition · Analysis: TopicsToTalkAbout

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