HG/T 4611-2014 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| HG/T 4611-2014 | English | 70 |
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Refined reclaimed rubber from truck tire treads
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HG/T 4611-2014: Refined reclaimed rubber from truck tire treads---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/HGT4611-2014
HG
CHEMICAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 83.040.01
G 48
Record No. 46144-2014
Refined reclaimed rubber from truck tire treads
Issued on: JULY 14, 2014
Implemented on: NOVEMBER 1, 2014
Issued by. Ministry of Industry and Information Technology
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Material ... 5
4 Requirements ... 5
5 Inspection rules ... 6
6 Packaging, marks, transport and storage ... 6
Appendix A ... 7
Appendix B ... 9
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Petroleum and Chemical Industry
Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Rubber & Products of Standardization Administration of China (SAC/TC 35).
Main drafting organization of this Standard. Fujian Huanke Chemical Rubber
Group Co., Ltd.
The drafting organizations of this Standard. Fujian Institute of Product Quality
Inspection, Hangzhou Zhongce Rubber Co., Ltd., Xiamen Zhong Hong Tai
Environmental Technology Co., Ltd., Chengdu Min Ke Rubber Co., Ltd.,
Tangshan Xing Yu Rubber Industry Co., Ltd., Sanming Institute of Product
Quality Inspection.
Main drafters of this Standard. Yan Guomin, Chen Zhanger, Lin Wei, Dong
Fangqing, Lin Zhengrong, Yan Bin, Gao Shixing, Zhuang Liqiong.
Refined reclaimed rubber from truck tire treads
1 Scope
This Standard specifies requirements, test methods, inspection rules,
packaging, marks, transport and storage of refined reclaimed rubber from truck
tire treads (hereinafter referred to as reclaimed rubber).
This Standard is applicable to refined reclaimed rubber from truck tire treads
made from waste truck tire tread rubber powders.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 528 Rubber, vulcanized or thermoplastic - Determination of tensile
stress-strain properties
GB/T 533 Rubber, vulcanized - Determination density
GB/T 1232.1 Rubber, unvulcanized - Determinations using a shearing-disc
viscometer - Part 1. Determination of Mooney viscosity
GB/T 2449 Sulfur for industrial use
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 3516-2006 Rubber - Determination of solvent extract
GB/T 4498-1997 Rubber - Determination of ash
GB/T 6038 Rubber test mixes - Preparation, mixing and vulcanization -
Equipment and procedures
Appendix A
(Normative)
Preparation of reclaimed rubber sample
A.1 Sampling
Extract corresponding number of pieces in accordance with 7.1 of GB/T 13460-
2008. Use a knife without lubricant to cut reclaimed rubber block of same mass
from extracted rubber sheets. According to test requirements, the total mass of
rubber samples shall be more than 1000 g.
It shall pay attention during cutting. the cutting direction shall be perpendicular
to the largest surface of reclaimed rubber block. In addition, the surface layer
shall be removed after rubber sheets are cut off.
A.2 Sample preparation
Use open rubber mixing machine which complies with GB/T 6038 to fold-roll the
rubber sample that is extracted in the aforementioned method, under conditions
that the roll temperature is 40°C±5°C, the roll space is 0.5 mm for 3 times. After
sample is even mixed, take 100 g as raw rubber sample (except rubber surface
particle sample). Roll the test sample to rubber sheets. Place at room
temperature for 4h~24h. Prepare and determine vulcanized rubber sample in
the following procedures.
a) mix in accordance with formula in Table A.1; ingredients shall comply
with provisions of corresponding product standards;
b) use mixing roll which complies with GB/T 6038 to mix; the mixing
temperature is 40°C±5°C;
c) mixing procedure is shown in Table A.2;
d) rubber mix parking is performed according to provisions of GB/T 6038;
e) vulcanization conditions. vulcanization temperature is 145°C±1°C;
vulcanization time is 10 min, 15 min and 20 min.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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