GB/T 13460-2016 PDF in English
GB/T 13460-2016 (GB/T13460-2016, GBT 13460-2016, GBT13460-2016)
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| 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
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| GB/T 13460-1992 | English | 279 |
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Reclaimed rubber
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Standards related to (historical): GB/T 13460-2016
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GB/T 13460-2016: PDF in English (GBT 13460-2016) GB/T 13460-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.040.01
G 48
Replacing GB/T 13460-2008
Reclaimed Rubber – General Specification
ISSUED ON. OCTOBER 13, 2016
IMPLEMENTED ON. MAY 01, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Classification and Naming ... 8
5 Requirements ... 9
6 Inspection Rules ... 10
7 Package, Mark, Storage and Transportation ... 12
Appendix A (Informative) Relevant Terms and Definitions of Reclaimed Rubber
... 13
Appendix B (Normative) Sample Preparation ... 18
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB/T 13460-2008 Reclaimed Rubber; compared with GB/T
13460-2008, this Standard has the major technical changes as follows.
--- Modify the standard name (see the cover);
--- Modify the reference standards in the normative references (see Clause 2 of this
Edition; Clause 2 of 2008 Edition);
--- Modify the classification method (see 4.1 of this Edition; Clause 4 of 2008 Edition);
--- Add the naming of the reclaimed rubber (see 4.2 of this Edition);
--- Delete the inspection item of “heating loss” (see Table 3 of this Edition; Table 2
of 2008 Edition);
--- Add “polycyclic aromatic hydrocarbons” (see 5.3 of this Edition; 5.3 of 2008
Edition);
--- Add “carbon black content” (see 5.4 of this Edition);
--- Add “rubber hydrocarbon content” (see 5.5 of this Edition);
--- Modify inspection rules (see Clause 6 of this Edition; Clause 7 of 2008 Edition);
--- Modify the storage and transportation conditions (see Clause 7 of this Edition;
8.3 of 2008 Edition);
--- Modify partial terms (see Clause 3 and Appendix A of this Edition; Appendix A of
2008 Edition).
This Standard was proposed by China Petroleum and Chemical Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee for
Standardization of Rubber and Rubber Products (SAC/TC 35).
Drafting organizations of this Standard. Fujian Huanke Chemical Rubber Group Co.,
Ltd.; Fujian Inspection and Research Institute for Product Quality; Hangzhou Zhongce
Rubber Co., Ltd.; Chengdu Minke Rubber Co., Ltd.; and Xiamen Zhonghongtai
Environmental Protection Technology Co., Ltd.
Chief drafting staffs of this Standard. Yan Guomin, Jiang Xingsi, Lin Wei, Dong
Fangqing, Lian Yuchi, Yan Bin, Jiang Yongliu, and Zhao Bo.
Reclaimed Rubber – General Specification
1 Scope
This Standard specifies the classification and naming, requirements, inspection rules,
package, mark, storage and transportation of the reclaimed rubber.
This Standard is applicable to the reclaimed rubber made from various waste rubber.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 528 Rubber, Vulcanized or Thermoplastic - Determination of Tensile Stress-
Strain Properties
GB/T 533 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 Rubber - General Procedures for Preparing and Conditioning Test
Pieces for Physical Test Methods
GB/T 3185 Zinc Oxide (Indirect Method)
GB/T 3515 Vulcanized Rubber, Vulcanized - Determination of Carbon Black
Content - Pyrolytic Method
GB/T 3516-2006 Rubber - Determination of Solvent Extract
GB/T 4498.1 Rubber - Determination of Ash - Part 1. Muffle Furnace Method
GB/T 5576 Rubbers and Latices - Nomenclature
GB/T 6038 Rubber Test Mixes - Preparation, Mixing and Vulcanization -
Equipment and Procedures
strips, stoppers and other rubber parts of the rubber products mainly composed of butyl
rubber.
3.4 Butadiene-acrylonitrile reclaim
The reclaimed rubber made from various waste vulcanized rubber products mainly
composed of butadiene acrylonitrile rubber.
3.5 Natural rubber reclaim
The reclaimed rubber made from waste rubber products mainly composed of the
natural rubber.
3.6 Ethylene-propylene-diene reclaim
The reclaimed rubber made from waste car sealing strip and rubber parts of other
rubber products mainly composed of ethylene propylene copolymer rubber (EPDM).
3.7 Reclaimed rubber of whole tire
The reclaimed rubber made from the rubber part of the waste tires.
3.8 Reclaimed rubber of tread
The reclaimed rubber made from the tread rubber of the waste tires.
3.9 Inner tube reclaim
The reclaimed rubber made from the waste inner tube as the main raw material.
3.10 Reclaimed rubber of footwear
The reclaimed rubber made from the waste footwear or the rubber parts of the cloth
shoes.
3.11 Reclaimed rubber of mechanical goods
The reclaimed rubber made from the waste mixed rubber mainly composed of natural
rubber, cis-butadiene rubber, styrene-butadiene rubber, etc.
3.12 Non-blackness reclaimed rubber
The reclaimed rubber made from non-black, light-colored waste rubber as the raw
materials.
6.2 Sampling and sample preparation methods
6.2.1 Take a laboratory sample with a mass of approximately 1.5kg according to the
method specified in GB/T 15340.
6.2.2 Prepare the sample according to the method specified in GB/T 15340.
6.3 Inspection
6.3.1 The inspection can be divided into type inspection and exit-factory inspection.
6.3.2 The type inspection is all items specified in the technical requirements. Type
inspection shall be carried out in any of the following cases.
a) Reproduction of the product after finalization, transferring to other factory for
production, and shutdown of product for more than half a year;
b) Changes in raw materials, formulations and process conditions;
c) Normal production with interval of half a year;
d) The exit-factory inspection results is quite different from the previous type
inspection.
6.3.3 The exit-factory inspection shall be carried out batch by batch according to the
following items.
a) Appearance;
b) Ash;
c) Acetone extract;
d) Mooney viscosity;
e) Density;
f) Tensile strength;
g) Elongation at break.
6.4 Qualification judgment
If any of the inspection results does not meet the requirements of this Standard,
double-sample shall be taken from the batch of products to re-inspect the unqualified
items; If the re-inspection results meet the requirements of this Standard, then such
batch of products shall be judged as qualified products; otherwise, such batch of
products shall be judged as disqualified products.
Appendix A
(Informative)
Relevant Terms and Definitions of Reclaimed Rubber
A.1 Type of reclaimed rubber
A.1.1 Non-contaminated reclaimed rubber
The reclaimed rubber made by non-polluting softener or a non-polluting process in the
case of degradation (desulfurization) reaction, and meet the corresponding
environmental protection requirements.
A.1.2 Fluoro reclaim
The reclaimed rubber made from various waste rubber products mainly composed of
fluoro-rubber.
A.1.3 Silicone reclaim
The reclaimed rubber made from various waste rubber products mainly composed of
silicone rubber.
A.1.4 Chloroprene reclaim
The reclaimed rubber made from various waste rubber products mainly composed of
chloroprene rubber.
A.1.5 Inner tube reclaim
The reclaimed rubber made from various waste inner tube mainly composed of natural
rubber.
A.1.6 Butadiene reclaim
The reclaimed rubber made from various waste rubber products mainly composed of
butadiene rubber.
A.1.7 Reclaimed rubber of general
The reclaimed rubber made from waste tires, waste inner tube rubber, waste bicycle
inner and outer tires, waste footwear, and other rubber parts of the rubber products
mainly composed of the general-purpose vulcanized rubber (including natural rubber,
isoprene rubber, butadiene rubber, styrene-butadiene rubber, cis-butadiene rubber).
The process of removing partial moisture from the devulcanized rubber materials in
the water-oil method by using a squeezing device.
A.2.10 Refining operation
The process of thinning the rubber material on the refiner through milling and filtering,
removing the un-plasticized particles, so that the rubber material is further plasticized
and improve the appearance of the reclaimed rubber.
A.2.11 Devulcanizing by high speed mixing method
The method of mixing the vulcanized rubber powder and regenerant uniformly, adding
into a rapid stirring desulfurizer, then devulcanize by high-speed stirring friction heat
generation.
A.2.12 Devulcanizing by Banbury method
The method of mixing vulcanized rubber powder and regenerant uniformly, adding into
the special Bunbury mixer, devulcanizing by short-time mechanical shearing and high
temperature degradation.
A.2.13 Rubber stripping machine
The machine for peeling a tread of the waste tire from a carcass.
A.2.14 Peels
The rubber for the tread portion of the waste tire.
A.2.15 Devulcanizing
The chemical and physical degradation process of using different heating methods or
other energy transfer equipment and corresponding equipment to make the vulcanized
rubber powder obtain the similar properties of the raw rubber under the participation of
the regenerant.
A.2.16 Microwave devulcanization
A general term for devulcanization method in which a portion of a cross-linking bond
in a vulcanized rubber is cut by energy of a microwave to restore the partial properties
of the raw rubber of the vulcanized rubber.
A.2.17 Microbial degradation
A general term for devulcanization method in which a vulcanized rubber is restored to
partial properties of the raw rubber by a chemical reaction initiated by a microorganism.
A.2.18 Devulcanizing by reclaimator process
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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