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All Research and Extension departments of RRISL provide advice on all aspects of rubber agronomy and technology to stakeholders.In addition it also assists academic programs of universities and other higher education institutions by supervising students and human resource development programs of various other organizations by training teachers and stakeholders.When analytical services are provided, a nominal fee is charged to cover up basic costs.
 
 
    Plant Science Department
Inspection of rubber nurseries: This service is rendered on request throughout the year by a team of officers in order to improve the quality of planting materials. Each nursery is inspected 2-4 rounds and reports are forwarded to respective nurseries.  Towards the end of each season, a report is sent to the Rubber Development Department (RDD) stating the number of plants that can be used from each nursery. 
Issue of authentic plants: A limited number of authentic plants of new clones are supplied to stake holders at a nominal rate (Rs. 60 per plant).
Advisory visits: Advisory visits are made on requests to investigate problems with regard to nurseries, growth during the mature phase, and yields in mature rubber.
 
 
    Soils and Plant Nutrition Department
Provide site-specific fertilizer recommendation for mature rubber.  Leaf and soil samples are collected from estates only during June to October every year first come first serve basis (Rs.130/surveyed ha).
Select suitable lands for planting rubber to improve the productivity (Rs 600/surveyed ha).
Provide analytical reports on soil, plant, sludge, compost, water and fertilizer samples. The charges for fertilizer analyses are as follows and may subject to change.
 
Analysis
Charges
Estates/RDD/Research Institutes/Students
Fertilizer Companies & Private Organizations
Fertilizer / Compost / Sludge
N P K and Mg
Rs.675/sample
Rs.1600/ sample
N
Rs.200/sample
Rs.400/ sample
P
Rs.225/sample
Rs.400/ sample
K
Rs.250/sample
Rs.400/ sample
Mg
Rs.275/sample
Rs.400/ sample
Any Sample
Organic C
Rs.200/sample
Rs.500/ sample
pH
Rs.75/sample
Rs.150/ sample
Particle size
Rs.100/sample
Rs.400/ sample
Moisture
Rs.50/sample
Rs.150/ sample
Ash content
Rs.200/sample
Rs.400/ sample
CEC
Rs.825/sample

Other analyses
Please contact: Head / Soils & Plant Nutrition Dept.

 
 
 
     Biochemistry and Physiology Department
Following analytical services are provided
     
    Dry Rubber Content (DRC) of latex (Rs. 250/sample)
    2-cloro ethyle phosphonic acid content of commercial ethephon products(Rs. 800/sample)
     
In addition, problems associated with low frequency tapping with stimulation will be provided free of charge
 
 
 
     Polymer Chemistry Department
Analytical services
 
Test
Purpose
Time required
Charges/Rs
Determination of Melting point
Purity of chemicals
One day
500.00
Identification of polymers and polymer ratio in polymer blends by Fourier Transform Infrared spectrophotometer (FTIR)
To identification of a suitable polymer for a product
Seven days
1500.00
Testing facilities
 
Test
Purpose
Time required
Charges/Rs
Identification of polymer additives by FTIR
Reconstruction of formulations
2 weeks
Depends on the compound
Specific gravity
Reconstruction of formulations
One day
250.00
Analysis of rubber chemicals by extraction method
Reconstruction of formulations
Seven days
1000.00
Technologies available
 
Preparation of dispersions and emulsions
Rubber wood treatment
Manufacture of Rubber seed oil and its uses
Manufacture of adhesives out of NR
Identification of suitable materials to manufacture rubber products
Manufacture of plant potting materials out of coir pith and NR latex
Preparation of thermoplastic natural rubber
Preparation of prevulcanised latex
Preparation of latex/filler master batches
Other services
 
Manufacture of Surface coatings
Manufacture of products out of Bitumen such as sealants, emulsions, membranes
Training programs
 
Rubber wood treatment
Adhesive preparation
Rubber products manufacture
Rubberized coir manufacture
 
 
    Raw Rubber and Chemical Analysis Department
 
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
 
Service
A brief description
Charges
Rs/Sample

1.
Raw rubber –Full Report
Po,PRI, Dirt,Ash, VM, N, colour
600.00
2.
Mooney viscosity
ISO 289-1
200.00
3.
Plasticity No. (Po)
ISO 2007
150.00
4.
Plasticity Retention Index ( PRI)
ISO2930
250.00
Dirt Content.
ISO249
300.00
6.
Ash Content.
ISO 247
200.00
7.
Volatile Matter content(VM)
ISO 248
150.00
9.
Nitrogen Content
ISO 1656
300.00
10.

Colour (Lovibond)
ISO 4660
200.00
11.
Acetone Extraction
SLS 252
750.00
12.
Accelerated Storage                      Hardning
RRIM
500.00
13.
Isoprene Content
ISO5945
1000.00
Analysis of Latex 
1.
Full report
TSC, DRC, VFA, MST& Alkalinity
1550.00 
2.
Total Solid Content(TSC)
ISO124
250.00
3.
Dry Rubber Content(DRC)
ISO126
250.00
4.
Volatile Fatty Acid No.(VFA)
ISO506
500.00
5.
Mechanical Stability Time(MST)
ISO 35
350.00
6.
Alkalinity
ISO125
200.00
7.
KOH
ISO127
500.00
8.
Viscosity(Brookfield)
ISO 1652
200.00
9.
Mg content
Titrimetric
400.00
10.
Coagulum content
ISO706                                                                
500.00
Analysis of Chemicals
1.
Strength of Sodium bisulphite
Titrimetric
500.00
2.
Strength of Sodium Sulphite
,,
500.00
3.
Strength of Oxalic Acid
500.00
4.
Strength of Bleaching Agent
,,
1000.00
5.
Strength of Formic Acid
,,
500.00
6.
Strength of Ammonia
,,
500.00
7.
Strength of Sulphuric Acid
,,
500.00
 
 
 
    Rubber Technology and Development Department
 

Testing services

 
Test
A brief description
Charges
Rs /sample 

1.
Monsanto rheogragh (cure time, scorch time, max. & min. torque, etc.)
ISO 6502: 1983(E)
750
2.
Tensile properties tensile strength , modulus, elongation at break
(accelerated ageing & heat resistance)
ISO 37: 1994 (E)
Without ageing
500 (with preparation of test pieces)
400 (without preparation of test pieces)
With ageing   
800 (with preparation of test pieces)
700 (without preparation of test pieces)

3.

Tear strength
ISO 34-1: 1994 (E)
Without ageing
500 (with preparation of test pieces)
400 (without preparation of test pieces)
4.
Hardness
(IRHD/Shore A)
ISO 48: 1994 (E)
300 (with preparation of test pieces)
200 (without preparation of test pieces)
5.
Abrasion resistance
DIN 53516 (1987):
400 (with preparation of test pieces)
350 (without preparation of test pieces)

6.

Density (or specific gravity)
ISO 2781: (E)
400
7.
Resistance to flex-cracking
ISO 132-1983: (E)
500
8.
Resilience
ISO 4662-1986: (E)
300
9.
Peel strength
200           
10.
Compression set
ISO 815-1991: (E)
400  (without ageing)
700  (with ageing)
11.
Swelling test
Determination of the cross-link density
450
Trouble shooting services
 
Latex / dry rubber based products manufacturing industries Finding solutions to  problems encountered during manufacture of latex/dry rubber based products
Training Programs
  Training programs on latex / dry rubber based products manufacture are conducted on request, especially for small / medium scale rubber product manufacturers as well as for entrepreneurs interested in setting up cottage industries.
 
 
    Raw Rubber Process Development and Chemical Engineering Department
 
Waste water testing laboratory is listed by the Central Environmental Authority of Sri Lanka and testing of industrial waste water is undertaken by the department.
Analysis of raw rubber, rubber processing water and chemicals for their metal ion concentrations using Atomic Absorption Spectrophotometer (AAS).
Trouble shooting in raw rubber manufacture
Training programs: Conducting tailor made training programs for the managers, field staff and the factory staff to address metrolac related issues, centrifuged latex and dry rubber manufacture, drying etc.(Charges: Nominal charges depending on the duration of the training session)
 
 
 
 
    Advisory Services Department
 
ASD renders following services to Rubber Smallholders free of charge
Quality improvement of RSS production (DRC adjustment, acids solution preparation, correcting rolling defects, sheet drying, smoking and grading will be covered).
Remedial measures for plant nutrient deficiencies (Soil conservation practices, identification of nutrient deficiencies, site- specific fertilizer recommendations)
Advisory Works on latex exploitation systems (Tapping panel marking, correction of tapping panels, Introduction of latex stimulation techniques)
Identification and control of diseases (Site visits will be available on request)
Awareness programs on rubber cultivation for O/L students in government schools (One day programs will be available on request at regional level)
Preparation of fertilizer mixture and application of fertilizer  (Demonstration programs are available on request)
Introduction of  soil conservation  practices for soil fertility management (Advisory visits on establishment of cover crops, mulching and terracing available on request)
 
Training Programs
Two types of training programs are conducted by the ASD for rubber growers
 
Centralized farmer Training programs
Nursery management and bud grafting training for selected nursery owners and bud grafters
Advance training on rubber cultivation and plantation management for medium scale rubber growers
Advance training on rubber cultivation and processing for rubber growers in non traditional areas
(Above training programs are conducted at the Training Centre, Nivitigalakele, Matugama.  Accommodation facilities are available for 32 participants).
 
Decentralized Training Programs
Mobile Latex Extraction Officer Training Schools  – (10 full days training classes are arranged on request).
Skill development of Rubber Latex Extraction Officers  – (3 half days classes are arranged on request).
Quality improvement of RSS produced in the smallholder sector  – (01 full day training session are arrange on request).
Training and awareness raising on recommended technologies for productivity improvement - (01 full day training workshops are arrange on request).
Regional level training programs on white root disease control - (01 full day training workshops are arranged on request).