A Natural Rubber Testing and Certification Laboratory Authorised By MRB

FIELDS OF TESTING

STATISTICAL QUALITY ASSURANCE PROGRAMME

STANDARD REFERENCE RUBBER MATERIALS

 
STATISTICAL QUALITY ASSURANCE PROGRAMME: 
Rubbers ( Chemical & Mechanical Properties Testing)

ABOUT THE PROGRAMME

MCL proficiency Test Programme on Rubbers provides laboratories with a statistical quality assurance (SQA) tool, enabling them to compare, improve, and maintain performance in conducting chemical and mechanical tests on rubber material. Labs are instructed to conduct the test in their facilities using the MRB (RRIM) test methods ( SMR Bulletin No. 7, Revised Edition 1992) cited in the programme, and to record their test results on the data report form.

WHY SHOULD YOUR LABORATORY PARTICIPATE?

These programme provide participating laboratories with an SQA tool enabling them to assess their performance in how they conduct a given test or series of tests by comparing their data against the data of other participating laboratories. You receive test results available only to participating laboratories that will help you:

. Monitor strengths and weaknesses of your laboratory's performance

. Periodically compare your test results and calculated statistical parameters with other laboratories

. Compare test data for a given quality parameter against laboratories using different rubber test methods

TEST MATERIALS

The two different rubber materials include : cup lump and latex materials. Other rubber materials may be included if sufficient number of test specimens to conduct tests according to MRB methods. Each lab receives two different rubber materials in each test cycle. Allowance for extra test specimens will be provided. Sample, test instructions, and data report sheets are distributed during the last week preceding the testing month. Test results are due to MCL by the end of the test week with final summary reports mailed to participants approximately one month following receipt deadline of test data.

STATISTICAL ANALYSIS OF DATA

Each lab returns completed test data report forms to MCL for use in generating statistical summary reports. MCL handles all data on a strictly confidential basis with no disclosure of lab identity except for one's own lab. Published reports contain all lab test data (coded) , statistical analysis of test data, charts plotting test results versus lab code and other pertinent information. Published summary reports are generated from MCL QA Unit.

METHODS INCLUDED IN THE PROGRAMME

DIRT
B.4 Test method for the determination of Dirt Content in rubber.

VOLATILE MATTER (VM)
B.5 Test method for the determination of moisture and solvent content in rubber.

RAPID PLASTICITY (P0) AND PLASTICITY RETENTION INDEX (PRI)
B.8 Test method for plasticity properties of rubber materials.

MOONEY VISCOSITY (VR)
B.9 Test method for molecular weight and crosslinking properties of rubber materials.

PROGRAMME SCHEDULE AND FEE INFORMATION

This programme is conducted twice a year, with testing in Apr and September. Labs may register at any time. For more information, please contact us at Phone : +603 3344 8028 Fax : +603 3344 7168 Email : mclabsb@gmail.com

PROGRAMME REQUIREMENTS

Participation is on an annual fee basic and open to all laboratories. Registration fees must be paid in advance to participate in the programme. Testing must be performed within the participants' laboratory facilities using the specified MRB methods.






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