Since
NTC's establishment, the company has been putting huge emphasis
of Quality control test done at each stage of production, to ensure
that the final output is as per the customer specifications.
The
quality control system, which is a part of R&D department,
carries out quality control test in effect for the control of
raw materials purchased by NTC.This system is also in effect for
inspecting and testing material during processing.
This
system provides assurance that the material procured by NTC continues
to meet the physical, chemical, functional, visual, and dimensional
requirements needed for the customer.
Listed
below are the specific tests on raw materials and finished products
done at the quality control department at NTC.
TEST
PERFORMED ON RAW MATERIAL...
------------------------------------------
Basic
weight of paperboard
Tensile
strength
Tearing
resistance
(calper)
Thickness of paper
Air
resistance
COBB test (water absorptiveness)
Ring crush (compression resistance)
Stiffness of paperboard
Bursting strength
TEST
PERFORMED ON FINISHED TUBES AND CORES...
----------------------------------------------------------
Measuring
length or height
Delamination
of adhesive bonds due to water immersion & high humidity
Torque
strength
End-supported
beam strength
Internal
bursting
Measuring moisture content
Axial (end to end) compression
Measuring inside & outside diameter
Measuring wall thickness
Measuring spindle fit
Side-to-side crush
INSPECTION
CHECKS AND/OR TESTING OF IN PROCESS PRODUCTS...
---------------------------------------------------------------------------