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Pneumatic fenders the third party inspection

Aug. 30, 2018 | 14:53:06

Pneumatic fenders 3rd party inspection on site

《ISO17357-1:2014 Ship and marine technology-floating pneumatic rubber fenders》 Part 1: High pressure was been seen as the only standard for pneumatic fenders/Yokohama fenders production and inspection.


Test and inspection for commercial fenders include four parts: Material test of rubber, Dimensional Inspection, Air-leakage test, Hydrostatic-pressure test.


1. Material test of rubber

The material test of the outer rubber and the inner rubber shall be conducted in accordance with the specifications given below:

NO.TEST ITEMTEST METHODREQUIRED VALUE
Outer rubberInner rubber
1-1.Tensile strengthISO 37 : 201118 Mpa or more10 Mpa or more
Type 1
1-2.ElongationISO 37 : 2011400 % Or more400 % Or more
Type 1
1-3.Durometer hardnessDurometer hardness (A type)ISO 7619-1 : 2010,Type A durometer60± 1050± 10
2After aging :ISO 188 : 2007Air oven aging 70±1 , 96 hAir oven aging 70±1 , 96 h
2-1.Tensile strength :ISO 37 : 2011Not less than 80 % of the original propertyNot less than 80 % of the original property
Type 1
2-2.ElongationISO 37 : 2011Not less than 80 % of the original propertyNot less than 80 % of the original property
Type 1
2-3.Durometer hardness (A type)ISO 7619-1 : 2010,Type A durometerNot to exceed the original property by more than 8Not to exceed the original property by more than 8
3TearISO 34-1 : 2010400 N/cm or moreNo requirement
Method B,with a nick
4Compression setISO 815 : 201430 %(70±1  for 22 h) or lessNo requirement
Method A
5Static ozone aging testISO 1431-1 : 2012No crack after elongation by 20 % and exposure to 50 pphm at 40  for 96 hNo requirement


Tensile strength, Elongation test by the device

Pneumatic fenders the third party inspection


2. Dimension inspection

The dimensions of all the fenders shall be inspected at the initial internal pressure 50ka/80kpa and the result shall be within the following tolerances:

Length: +10%, -5%

Diameter: +10%, -5%

Pneumatic fenders the third party inspection


3. Air-leakage test

The air-leakage test shall be conducted on all fenders at initial pressure for more than 30 min, and the test results shall confirm that there is no air-leakage

Pneumatic fenders the third party inspection


4. Hydrostatic-pressure test:

The hydrostatic-pressure test is conducted with the miniature size fender larger than one-fifth the size of the actual fender. the test is performed for 10 min at the hydrostatic pressure according to the standard, there is on leakage of water and no defects during the test.


CONTACT US
  • Whale Fender Limited
  • Address : B2, No.50, Fangnan Road, Jiading district, Shanghai, China
  • Direct line : +86 152 2146 6455
  • E-mail : info@whalefender.com