A Natural Rubber Testing and Certification Laboratory Authorised By MRB

FIELDS OF TESTING

STATISTICAL QUALITY ASSURANCE PROGRAMME

STANDARD REFERENCE RUBBER MATERIALS

 
STANDARD REFERENCE RUBBER MATERIALS

 

                         Standard reference rubber materials (SRM) are certified and issued by MCL to verify or calibrate measurement                         systems.
                        
                        SRM is used by laboratories to :

 .

Strengthen their testing quality and reliability

 .

Simplify the internal quality control

 .

Provide long-term internal comparability

 .

Ensure comparability nationally and internationally

 .

Provide traceability

 .

Validate and evaluate test methods

 .

Calculate the measurement uncertainty

SRM  is available for Po/PRI and VR tests at different ranges :

 
 
SRM Code Material
Estimated
P0 Range
Estimated
P30 Range
Estimated
VR Range
SRM - 1 CV 70 27 - 32 21 - 25 48 - 62
SRM - 2 CV 70 33 - 38 26 - 32 63 - 75
SRM - 4 SBR   45 - 60


 

Delivery: 5 to 8 work days after confirmation of order / receipt of payment.
Packing: The standard rubber is wrapped with plastic sheet and sealed in a polythene bag.
Shelf Life: 5 months from the date of issue.
Minimum Order: 10 pcs. of Po/PRI sheeted piece or 20 pcs. of VR test piece.
Remarks: * The weight of a P0/PRI or VR test piece is 20 – 25 g. As a general guideline, 1 kg of standard rubber is equal to approximately 45 test pieces.
  ** PRI test piece (approx. 50g) is sheeted to the thickness of between 3.2 – 3.6 mm, cut into size approximately 10cm X 15cm, and sealed in a polythene bag.
  Prices quoted do not include delivery cost. Overseas order will be delivered by courier service to be borne by the purchaser.
Note: Please specify the SRM Code and number of pcs. required for each test in your order. All standard rubber sold is come with a Certificate of Analysis.


 

 

Specification

SRM-1 / SRM-2
STANDARD RUBBER FOR Po/PRI (SHEETED) TEST


Material : CV 70
Size of Sheeted Piece : approx. 12 cm x 17 cm
Thickness : 3.2 - 3.6 mm; Net Weight : (50 ± 3) g



STANDARD RUBBER FOR Po/PRI (NON-SHEETED) & VR TESTS

Material : CV 70
Size of Cut Piece : approx. 4.5 cm x 8 cm
Thickness : approx. 1 cm; Net Weight : (25 ± 3) g



SRM-4
STANDARD RUBBER FOR VR TEST


Material : Styrene-Butadiene Rubber (synthetic rubber) 1502 or SBR 1502
Size of Cut Piece : approx. 4.5 cm x 8 cm
Thickness : approx. 1 cm; Net Weight : (25 ± 3) g





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