STANDARD TERM OF REFERENCE
1. OBJECTIVE
Exhibit roadmap for technical-scientific studies with a view to changing the volumetric yield coefficient determined by the present Resolution, for the transformation of log in laminated wood (blades).
2. JUSTIFICATION
The volumetric yield coefficient (CRV) determined by this Resolution will be adopted by the competent environmental agency for the conversion of wood logs of tropical hardwood species in laminated wood. The CRV varies according to the species, 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 in the establishment of a CRV that meets specifically all industries, the Resolution provides that the competent environmental agency can accept, through technical analysis, specific CRVs, provided that the applicant companies submit satisfactory technical and 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 carrier, multiple circular saw, circular saw, destopadeira, blades dryer, mill, faquedeira, guillotines, presses, stove, planer, and others), and the quantities, year of manufacture, power and other technical specifications.
3.1.3 Products generated
3.1.3.1 List the main final products produced over the last 12 months
3.1.3.2 List the byproducts sold by the company over the past 12 months.
3.1.3.3 List the types of waste generated and used by the company
3.2 Sampling of logs/short logs for the study Justify the species included in the study. Sampling of logs/short logs for the study must be made by cash, in accordance with the simple random sampling method.
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 according to the ANNEX to the technical-scientific report presented.
3.3.1 Wood species to 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 . Cubing log sheets 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 log. These values should appear on the cubage sheets presented, using the meter (m) as the unit of measure.
3.3.3 Determining the volume of the log
The volume of logs must be determined by the geometric method, i.e. using Smalian’s equation. Should be used to calculate the mean of the diameters and the average of the lengths.
3.4 Determination of wood laminated in a lathe 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 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 lathe
For each sampled log/short log, determine the laminated wood volume obtained
3.4.5 Volume of rolo-resto
Inform the final diameter and volume of the rolo-resto resulting from each of the sampled logs/short logs.
3.5 Determination of laminated wood in faqueadeira
Information about volume of laminated wood, obtained from the processed logs, 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.
3.5.1 Quantity of rolling logs/short logs
Inform the rolling log/short logs number 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 respective quantities produced.
3.5.4 Laminated wood volume in faqueadeira
For each sampled log/short log, determine the volume of laminated wood obtained from the processing of respective log/short log.
3.6 Determination of products and by-products
Products and by-products shall be those resulting from the processing of logs/short logs dimensions and quality does not meet the requirements for the product but they are marketed by the company.
3.6.1 Dimensions and volume of products and by-products
For each sampled log, inform 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 utilization, provided they are properly marketed. Should be determined by the average of the CRV species determined individually for each log.
3.8 Statistical analysis
3.8.1 Descriptive statistics
Determine the average, 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 respective product, the optimal size of the sample should be determined, assuming a sampling error of 10%. The number of logs studied must 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 conduct of work
The technical-scientific study should be signed by legally qualified professional with due note of technical responsibility and legal representative of the company.
