Senior Research Office

Mrs A P Attanayake, BSc (SL), PhD (SL)

anusha_rrisl[at]yahoo.com

Current research interests

Raw Rubber & latex testing

• Development of a analytical test method to determine the concentration of water-soluble bleaching agent
• Development of a analytical test method to determine the Magnesium content of latex

• Evaluation of the methods of preparation of dispersions by using pearl mill and the ball mill on the viscosity & DRC of centrifuged latex
• Survey on variation of raw rubber properties of TSR manufacture in Sri Lanka
• Factors affect on MST of NR latex with special emphasis to test conditions
• Survey on variation of latex properties of centrifuged latex produced by different manufactures in Sri Lanka

• Testing, grading and issuing shipping certificates for all TSR produced in the country.
• Testing and issuing quality certificates for different grades of raw rubber produced in the country for local industries and for shippers.
• Analysis of chemicals used for processing raw rubber in the rubber products manufacturing industry, for purity
• Analysis of skim rubber adulteration in scrap grades of crepe rubber.
• Recommendation of chemicals for the industry and analyzing them for percentage purity.
• Testing of finished product such as :
  • Rubber gloves for sodium pentachlorophenate content and powder content.
  • Rubber content in vulcanized product.
  • Contamination of metal ions in dipped products.
• Organizing inter laboratory cross check programs for raw rubber & latex testing laboratories & evaluation of results statistically.
• Trouble Shooting Activities such as Calibration of latex tanks and Insrument Calibration
• Analytical charges are as follows

REVISED TESTING CHARGES – July 2022

Testing charges have been revised with effect from 01.07.2022, as mentioned in the following table.

Note: Please note that Transport charges, Priority charges & Institutional charges have not been added to the toal charges. It should be added to the total charges whenever necessary. Figuers are in LKR.

• Achieving quality infrastructure with modern equipments and obtaining laboratory accreditation.
• Provide testing, inspections and certification service through conformity assessment.
• Maintain in house instrument calibration procedures.
• Increase demand for quality rubber products and raw materials.
• Increase demand for accredited test reports and certificates.
• Inspection of TSR factories for their quality of production process and certified as a registered TSR factory under RRISL.
• Implementation of new test methods and method validation.
• Identification of alternative chemicals to replace toxic and harmful chemicals.
• Identify quality variations in rubber produced in nontraditional areas.
• Recommendation on of new clones with special features targeting specific rubber product.