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CINI Compliance Results

CINI Compliance Results

CINI is the dominant international standard governing insulation in Liquid Natural Gas (LNG) facilities. Dyplast's ISO-C1/2.5 (2.5 lb/ft3) meets or exceeds the requirements of this most demanding standard. 

ISO-C1® /2.5 (40 kg/m3)

 

  Units CINI Standard     ISO-C1®/2.5
4 Material Properties
4.2 Nominal Density - ASTM D1622 kg/m3   40.0

  40.3
 
4.3 Apparent Thermal Conductivity W/m.°K      

Actual Temperature

Tested

 
(aged 6 months @ 23 + or - 2°C)    -170°C 0.016 -165°C 0.012
- ASTM C177    -150°C 0.017   -129°C 0.017
     -100°C 0.022   -100°C 0.020
          -73°C 0.023
    -50°C 0.026   -45°C 0.026
Mean temperature of measurement          -17°C 0.027
     0°C 0.029   not tested  
    10°C 0.029   10°C 0.026
          24°C 0.028
    50°C 0.033   66°C 0.033
    100°C 0.030   93°C 0.037
 
4.4 Closed Cell Content - ASTM D6226

% minimum

   ≥95     95
       
4.5 Water Absorption - C272  % by volume    2.0      0.27
             
4.6 Water Vapor Permeability ng/(Pa.s.m)    5.5      2.8
 - ASTM E96 (Procedure A)            
       5 Mechanical Properties
5.1 Compressive Strength kPa           
-ASTM D1621 at -165°C    All directions  280      
 Parallel            495
 Perpendicular            360
 at 23°C    All directions  200      
Parallel             295
Perpendicular             220
       
5.2 Linear Thermal Expansion Coefficient             
- ASTM E228 from -165 to 23 °C    average 70x10-6    average 59 x 10-6
       
5.3 Tensile Strength   kPa          
- ASTM D1623 at -165°C    All Directions   200      
Parallel             484
Perpendicular             279
at 23°C     300      
Parallel           410
Perpendicular           335
 
5.4 E Modulus (all directions) MPa          
- ASTM D1623 at -165°C     16      
Parallel           4.09
Perpendicular           3.07
 
5.5 Poisson's Ratio            
-165°C     0.4     0.4
 
5.6 Cryogenic Thermal Stress Resistance (CTSR) factor1 Calculated   ≥1.5     5.8
6 Chemical Properties 
6.1 Leachable Chloride - ASTM C871   mg/kg   ≤60     ≤60
       
6.2 pH - ASTM C871      5.5 - 7.0      6.9
7 Combustibility       
7.1 Flame Spread Index - ASTM E84      ≤25     ≤25

 

1 In cryogenic and cold services increased contraction stresses occur in the insulation materials. Therefore an increased tensile strength and a reduced tensile modulus and linear thermal expansion are required. This is formulated in a safety factor. At service temperatures below - 50°C, the cryogenic thermal stress resistance (CTSR) factor of the PIR insulation foam shall comply in the X, Y and Z direction with the following equation:

CTSR Formula