GB/T 13460-2025 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 13460-2025 | English | 275 |
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Reclaimed rubber - General specification
| Valid |
| GB/T 13460-2016 | English | 150 |
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Reclaimed Rubber - General Specification
| Valid |
| GB/T 13460-2008 | English | 559 |
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Reclaimed rubbers
| Obsolete |
| GB/T 13460-2003 | English | 319 |
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Reclaimed rubbers
| Obsolete |
| GB/T 13460-1992 | English | 279 |
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Reclaimed rubber
| Obsolete |
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Similar standards HG/T 4611 GB/T 19208 GB/T 13460-2025: Reclaimed rubber - General specification---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT13460-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.040.01
CCS G 48
Replacing GB/T 13460-2016
Reclaimed Rubber - General Specification
Issued on. MARCH 28, 2025
Implemented on. OCTOBER 1, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 6
4 Classification... 7
5 Technical Requirements... 8
6 Test Methods... 9
7 Inspection Rules... 10
8 Packaging, Marking, Storage and Transportation... 11
Appendix A (normative) Determination of Heating Loss... 12
Appendix B (normative) Specimen Preparation for Tensile Strength and Elongation at
Break... 13
1 Scope
This document specifies the classification, technical requirements, inspection rules, packaging,
marking, storage and transportation of reclaimed rubber, and describes the corresponding test
methods.
This document applies to the production and inspection of reclaimed rubber made from various
waste rubber products.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 528 Rubber, Vulcanized or Thermoplastic - Determination of Tensile Stress-strain
Properties
GB/T 533-2008 Rubber, Vulcanized or Thermoplastic - Determination of Density
GB/T 1232.1 Rubber, Unvulcanized - Determinations Using a Shearing-disc Viscometer - Part
1.Determination of Mooney Viscosity
GB/T 2449.1 Sulphur for Industrial Use - Part 1.Solid Product
GB/T 2941-2006 Rubber, General Procedures for Preparing and Conditioning Test Pieces for
Physical Test Methods
GB/T 3185 Zinc Oxide (indirect method)
GB/T 3516 Rubber - Determination of Solvent Extract
GB/T 4498.1 Rubber - Determination of Ash - Part 1.Muffle Furnace Method
GB/T 6038 Rubber Test Mixes - Preparation, Mixing and Vulcanization - Equipment and
Procedures
3 Terms and Definitions
The terms and definitions defined in GB/T 9881 and the following are applicable to this
document.
3.1 reclaimed rubber
Vulcanized rubber that has been plasticized by thermal, mechanical and (or) chemical action
and is mainly used as a rubber diluent, extender or processing aid.
[source. GB/T 9881-2008, 2.330, modified]
3.2 reclaimed butyl rubber
Reclaimed rubber made from waste rubber products with butyl rubber as the main component.
3.3 reclaimed butadiene-acrylonitrile rubber
Reclaimed rubber made from waste rubber products with butadiene-acrylonitrile rubber as the
main component.
3.4 reclaimed natural rubber
Reclaimed rubber made from waste rubber products with natural rubber as the main component.
4 Classification
4.1 Reclaimed rubber can be classified in accordance with the main rubber varieties and the
sources of waste rubber.
4.2 For reclaimed rubber with clarified main rubber components, it is classified in accordance
with the main rubber components it contains and represented by the English prefix “R-”
meaning “reclaimed” and the symbol of the rubber varieties, as shown in Table 1.
5 Technical Requirements
5.1 Appearance
The reclaimed rubber shall be uniform in texture and shall not contain visible non-rubber
component impurities, such as metal, wood chips and sand grains, etc.
5.2 Properties
The properties of the reclaimed rubber shall comply with the provisions of Table 3.
6 Test Methods
6.1 Appearance
Visual inspection under natural light.
6.2 Heating Loss
Carry out the determination in accordance with Appendix A.
6.3 Acetone Extract
Carry out the determination in accordance with Method A in GB/T 3516, with acetone as the
solvent and Soxhlet extractor as the instrument.
6.7 Mooney Viscosity
6.8 Density
Take the non-vulcanized rubber sheet specimen and determine it in accordance with Method B
in GB/T 533-2008.
6.9 Tensile Strength and Elongation at Break
6.10 Contents of Polycyclic Aromatic Hydrocarbons and Hazardous Substances
In accordance with GB/T 26125, determine the content of mercury (Hg), lead (Pb), cadmium
(Cd), hexavalent chromium (Cr6+), polybrominated biphenyls (PBB) and polybrominated
diphenyl ethers (PBDE).
7 Inspection Rules
7.1 Inspection
7.1.1 Inspection is divided into type inspection and exit-factory inspection.
7.2 Batch
The inspection is carried out in batches, with reclaimed rubber produced on the same production
line, with the same raw materials, the same formulas and the same process as a batch, and the
mass of each batch shall not exceed 50 t.
7.3 Qualification Determination
If any item of the inspection results does not meet the requirements of this document, double
samples shall be taken from that batch of products to a re-inspection of the disqualified item. If
the re-inspection results meet the requirements of this document, then, the batch of products
shall be determined as qualified. Otherwise, the batch of products shall be determined as
disqualified.
8 Packaging, Marking, Storage and Transportation
8.1 Packaging
The packaging materials and requirements shall be agreed upon by both the supply-side and the
demand-side.
8.2 Marking
Each outer package shall be marked with product name, reclaimed rubber code, net weight,
manufacturer name, production date and serial No. of this document.
Appendix A
(normative)
Determination of Heating Loss
A.1 Instruments
A.2 Test Steps
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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