SIMPLIFIED TERM OF REFERENCE
1. OBJECTIVE
Presenting roadmap for technical-scientific studies with a view to amendment of volumetric yield coefficient determined by the present Resolution, for the transformation of log in laminated wood (blades).
2. JUSTIFICATION
The volumetric yield efficiency-CRV determined by this Resolution will be adopted by the competent environmental agency for the conversion of tropical logs hardwood wood species in laminated wood. The CRV varies according to the species forestry, the quality of the raw material, the type of manufacturing process, the level of technology industry, the type and quality of the final product, the realization of commercial use.
Due to the uniqueness of the CRV that specifically meets all
industries, the resolution provides that the competent environmental agency can accept, through technical analysis, specific CRVs, provided that the applicant companies submit satisfactory service scientific studies.
3. METHODOLOGY of the STUDY 3.1 Characterization of the company 3.1.1 General information
3.1.1.1 Industry Name
3.1.1.2 Geographical coordinates
3.1.1.3 Postal address, telephone, fax and e-mail
3.1.1.4 Name and function of contact person
3.1.1.5 IBAMA Registry
3.1.2 Equipment
List the equipment (platform of logs, logs carriage, band saw, multiple circular saw, circular saw, destopadeira, blades dryer, laminating mill, faqueadeira, guillotines, presses, planer, and others), and the quantities, year of manufacturing, power and other technical specifications.
3.1.3 Products generated
3.1.3.1 List the main final products produced in the last 12 months 3.1.3.2 List the byproducts sold by the company over the past 12 months
3.1.3.4 List the types of waste generated and used by the company
3.3 Cubage of logs/short logs processed
Information about the logs/short logs processed should be grouped into spreadsheets for each of the studied species. The worksheets for each species should be included in the ANNEX to the technical-scientific report presented.
3.3.1 Wood species
Identify the species studied by common and scientific name.
3.3.2 Dimensions of logs
3.3.2.1 Diameter: determine the cross diameters (larger and minor), without considering the shell at both ends of the log. The spreadsheets of cubage of log must present the four values of diameters determined for each log, using the meter (m) as the unit of measure.
3.3.2.2 Length: determine the smallest and largest length of the log. These values should appear on the cubage spreadsheets presented, using the meter (m) unit of measure.
The volume of logs must be determined by the geometric method, that is, using the Smalian’s equation. It should be used to calculate the mean of the diameters and the average of the lengths.
3.4 Determination of wood laminated in a mill
The information on the volume of laminated wood, obtained from the logs/short logs processed, should be grouped into spreadsheets for each of the studied species.
These worksheets should be included in the ANNEX to the technical-scientific report presented.
3.4.1 Amount of rolling logs/short logs
Inform the number of sampled cold rolling logs/short logs.
3.4.2 Dimensions and volume of rolling logs/short logs
Determine the average diameter at both ends, the length and the volume of each of the logs/short logs.
3.4.3 Dimensions of blades produced
For each sampled log/short log, inform the dimensions (length, width and thickness) of the blades and the quantities produced.
3.4.4 Volume of wood laminated in a mill
For each sampled log/short log, determine the volume of laminated wood.
3.4.5 Volume of rolo-resto
Inform the final diameter and volume of rolo-resto resulting from each of the sampled logs/short logs.
3.5.1 Amount of rolling logs/short logs
Inform the number of rolling logs/short logs obtained for each sampled log.
3.5.2 Size and volume of rolling logs/short logs
Determine the average diameter at both ends, the length and the volume of each of the logs/short logs taken from the sampled log.
3.5.3 Dimensions of blades produced
For each sampled log/short log, inform the dimensions (length, width and thickness) of the blades and the quantities produced.
3.5.5 Volume of wood laminated in faqueadeira
For each sampled log/short log, determine the volume of laminated wood obtained from the processing of the respective log/short log.
3.6 Determination of volume of products and by-products
Products and by-products shall be those resulting from the processing of logs/short logs whose dimensions and quality do not meet the requirements for the main product, but which are marketed by the company.
3.6.1 Dimensions and volume of products and by-products
For each sampled log, list the dimensions (length, width and thickness), volume and quantities of the products and by-products resulting from the primary processing that do not meet the requirements of the main product and the marketing of which is subject to verification.
3.6.2. Cutting leftover
Inform the dimensions of cutting leftover resulting from each of the sampled logs/short logs.
3.7 Determination of volumetric yield coefficient (CRV)
The CRV is determined by the ratio between the volume of logs processed and the volume obtained from blades, plus, when applicable, the volume obtained with products of exploitation, provided they are properly marketed. It should be determined for species by the average of the CRV determined individually for each log.
3.8 Statistical analysis
3.8.1 Descriptive statistics
Determine the mean, variance, standard deviation and coefficient of variation for each species studied.
3.8.2 Determination of optimal size of the sample
In order for the CRV to be representative of species and given its product, should be given the optimal size of the sample, assuming a sampling error of 10%. The number of studied logs should always be equal to or greater than the number given to the optimal size of the sample.
3.8.3 Determination of confidence interval
Determine the confidence interval at the 95% level of probability with lower and upper bounds that the CRV may entail for certain species.
3.9 Coordination, supervision and execution of the work.
The technical-scientific study should be signed by legally qualified professional with due note of technical responsibility and legal representative of the company.
