General technical approval/general
design approval
No. Z-40.21-565 of 9 November 2023
Rotational-moulded container combination
made from polyethylene (PE) – type: CUBE
tank 5000 l
1
Factory production control
Materials
1.1
(1) As part of the receiving inspection of the raw materials, using the German conformity mark
(Ü), the processor must verify that the materials comply with the properties stipulated in the
general technical approval of the material.
(2) The material used must be tested before and after processing in accordance with Table 1.
Table 1:
Material tests and documentation
Object
Moulding
compound
Moulding
material
(3) The average of three individual measurements must be calculated when determining
each value.
Test specification for moulding material
1.2
The requirements referred to in Tables 2 and 3 apply to rotational-moulded structural
Table 2:
Test specifications for moulding materials made of the Resinex
Property
MFR
Yield stress
Yield strain
Young's modulus
Index a = initial value according to the general technical approval for the moulding compound (moulding
2
DIN ISO 1133-1:2012-03
3
DIN EN ISO 527-1:2019-12
4
DIN EN ISO 527-2:2012-06
Z96891.23
Property
Test
Trade name,
Annex 2,
designation of
Section 1
moulding
compound
according to DIN
MFR,
density
MFR,
Annex 4,
yield stress,
Section 1.2
yield strain,
Young's
modulus
Unit
Test specification
g/10 min
DIN EN ISO 1133-1
MFR 190/2.16
N/mm³
DIN EN ISO 527-1
(at 50 mm/min pull-off
%
speed) (at 1 mm/min)
N/mm²
Plastics – Determination of the melt mass-flow rate (MFR) and melt volume-flow
rate (MVR) of thermoplastics – Part 1: Standard method
Plastics – Determination of tensile properties – Part 1: General principles
Plastics – Determination of tensile properties – Part 2: Test conditions for moulding
and extrusion plastics
Annex 4
Page 1 of 3
Documentation
Frequency
German
Every
conformity mark
consignment
(Ü mark)
Record
After
operational
startup,
after batch
change, but at
least
Requirement
Max. MFR =
2
MFR 190/2.16
≥ 20.5
and -2
3
4
≥ 12
≥ 754
GB
+15%
(a)
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