PCR Tire Structure and Functions Presentation
TBR KO408 E4 Test Report
TEST REPORT
TÜV RHEINLAND GROUP
Туре
Manufacturer
KYOTO
JAPAN
Symbol of Quality & Performance
Test Report No. 86-R54-3175/20-00
:
315/80R22.5
: Qingdao Doublestar Tire Industrial Co., Ltd.
A
TÜVRheinland
according to UN-Regulation
1.2.7
Circumference
3380 mm
1.2.8
Outer diameter
1075.9 mm
1.2.9
Uniform provisions concerning the approval of pneumatic tyres
for commercial vehicles and their trailers
Tread depth/void to fill ratio in case of
special use tyre
Not applicable
1.3.
Load/speed performance test according to Annex 7
1.3.1
Test machine
TJR-2-TB(Y)
1.3.2
Diameter of test drum
1.707 m
UN Regulation No. 54
including all amendments until
Amend.00, Suppl. 23
1.3.3
Test rim
:
9.00 x 22.5
1.3.4
Inflation pressure adjusted before
conditioning
:
8.5 bar
1.3.5
Conditioning of tyre
Approval Status
UN approval
1.3.6
Test-room temperature
1.3.7
: E4*54R00/22*41069*00
Inflation pressure readjusted after
conditioning
:
More than 3 hours
28°C
8.5 bar
1.3.8
Circumference after conditioning, before
testing
3380 mm
Structure of the Test Report
1.3.9
Outer diameter after conditioning, before.
testing
1075.9 mm
Item No.
1.3.10
0.
1.
General information
Tested vehicle(s)/ object(s)
100% load corresponding to LI.(single)
Step
4000 kg
Step duration Total duration
Actual speed
Test Load
[h]
[h]
[km.h']
[kg]
1001
1.
7
7
64
66
2640
2.
16
23
64
84
3360
2.
Test record
3.
24
47
64
101
4040
3.
List of appendices
1.3.11
Conditioning after testing
: More than 6 hours
RDW
4.
Statement of conformity
1.3.12
Circumference after conditioning, after
3398 mm
testing
The Test Report shall be reproduced and published in full by the client only. It shall however be reproduced
partially with the written permission of the Testing Laboratory only.
1.3.13
Outer diameter after conditioning, after
testing
1081.6 mm
1.3.14
Difference outer diameter before and after
testing (max. 3.5%)
: 5.7 mm
RDW
0.53 %
Typprüfstelle Fahrzeuge Fahrzeugteile
TÜV Rheinland Kraftfahrt GmbH
Am Grauen Stein, 51105 Koln, Germany
Designation: RDWT-CEB-05
Engineering Centre Shanghai
TÜV Rheinland (Shanghai) Co., Ltd.
No. 177, 179, 189, Lane 777,
West Guangzhong Road, Shanghai,
PR. China
1.3.15 Inspection after test
Master RDW en_Rev.21 Page 1/5
Issued: 2020-08-24
88-R54-3175-20-00.docx
2.
Remarks
The tyre does not exhibit tread separation, ply
separation, cord separation, chunking or broken
cords.
The test data refer to report No.: 86-R54-0488/18-00
corresponding to type approvall No.:
E4 54R00/22*41069*00View entire presentation