Raw Rubber and Chemical Analysis Department
This department provides analytical testing services as per industry demands and needs. Our scope is to empower raw rubber producers, rubber exporters, and small and medium-scale industrialists by providing internationally accepted testing facilities. The department offered testing, analytical and certification services on raw natural rubber and rubber chemicals to all sectors of the rubber industry.
Senior Research Officer
Mrs A P Attanayake, BSc (SL), PhD (SL)
anushaattanayake04[at]gmail.com
Officer In-charge of the Raw Rubber & Chemical Analysis Department since 2005. Responsible for providing analytical services for the rubber industry. Obtained B.Sc Degree (Chemistry Special) from University of Ruhuna and received Ph.D. from the University of Sri Jayewardenapura in 2016. She has represented RRISL in several national and international conferences. Research projects on quality improvement and quality control of raw rubber are the main study areas. She is working as a technical expert under Sri Lanka Accreditation Board. Collaboratively worked with rubber industries and national Universities.
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
- Effect of ammonia preservative systems on phosphate levels in centrifuged latex and its impact on latex film properties.
- Effect of added ammonium laurate soap on physic-mechanical properties of natural rubber latex.
- Investigation of possible reasons for flocculation of latex compound in dipping tanks in respect of imported latex.
- 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.
|
PARAMETER (LATEX) |
TEST METHODS |
APPROVED SAMPLE FEE (RS.) |
|
(LATEX ALL TESTS) (DRC, TSC, VFA, MST, ALKALINITY) |
|
Rs. 7200.00 |
|
Dry Rubber Content (DRC) |
ISO 126 |
Rs. 1200.00 |
|
Total Solid Content (TSC) |
ISO 124 |
Rs. 1000.00 |
|
Volatile Fatty Acid No |
ISO 506 |
Rs. 2500.00 |
|
Mechanical Stability Time |
ISO 35 |
Rs. 1500.00 |
|
Alkalinity (on latex phase) |
ISO 125 |
Rs. 1000.00 |
|
KOH Number |
ISO 127 |
Rs. 2000.00 |
|
Viscosity (Brookfield) |
ISO 1652 |
Rs. 600.00 |
|
Mg Content |
ISO 17403 |
Rs. 2000.00 |
|
pH |
ISO 976 |
Rs. 900.00 |
|
Coagulum content |
ISO 706 |
Rs. 2000.00 |
|
Chemical Stability |
ISO 705 |
Rs. 2500.00 |
|
Phosphate Content |
ISO 19043 |
Rs. 3500.00 |
|
PARAMETER (RAW RUBBER)
|
TEST METHODS |
APPROVED SAMPLE FEE (RS.) |
|
RAW RUBBER ALL TESTS (Dirt, Ash, VM, Nitrogen, Po, PRI, Colour) |
|
Rs. 8700.00 |
|
Dirt Content |
ISO 249 |
Rs. 2500.00 |
|
Ash Content |
ISO 247 |
Rs. 1000.00 |
|
Volatile Matter Content |
ISO 248 |
Rs. 500.00 |
|
Nitrogen Content |
ISO 1656 |
Rs. 1500.00 |
|
Plasticity Number |
ISO 2007 |
Rs. 1000.00 |
|
Plasticity Retention Index |
ISO 2930 |
Rs. 1500.00 |
|
Mooney Viscosity |
ISO 289 |
Rs. 2500.00 |
|
Colour |
ISO 4660 |
Rs. 700.00 |
|
Acetone Extraction |
ISO 1407 |
Rs. 3500.00 |
|
Accelerated Storage Hardening Test (∆ P) |
RRIM |
Rs. 1500.00 |
|
Gel Content |
ISO 17278 |
Rs. 3500.00 |
|
PARAMETER (CHEMICALS) |
TEST METHODS |
APPROVED SAMPLE FEE (RS.) |
|
Sodium sulphite |
Titrimetric |
Rs. 2000.00 |
|
Sodium bi-sulphite (S-meta bi-sulphite) |
Titrimetric |
Rs. 1000.00 |
|
Oxalic Acid |
Titrimetric |
Rs. 1500.00 |
|
Formic Acid |
Titrimetric |
Rs. 2000.00 |
|
Thickness (Polythene) |
- |
Rs. 500.00 |
|
Ammonia strength |
Titrimetric |
Rs. 1500.00 |
|
Sulphuric strength |
Titrimetric |
Rs. 1500.00 |
- 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.
Call 1919