Philippine National Standard Solar Powered Irrigation System PDF

PHILIPPINE NATIONAL PNS/BAFS 324:2022 ICS 65.060.35 STANDARD Solar Powered Irrigation System — Specifications BUREAU OF AGRICULTURE AND FISHERIES STANDARDS BPI Compou...

PHILIPPINE NATIONAL PNS/BAFS 324:2022 ICS 65.060.35 STANDARD Solar Powered Irrigation System — Specifications BUREAU OF AGRICULTURE AND FISHERIES STANDARDS BPI Compound Visayas Avenue, Diliman, Quezon City 1101 Philippines Trunkline: (632) 928-8741 to 64 loc. 3301-3319 E-mail: [email protected] Website: www.bafs.da.gov.ph  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System — Specifications ICS 65.060.35 Foreword In 2021, the Bureau of Agriculture and Fisheries Standards (BAFS)-Department of Agriculture (DA) developed the PNS SPIS - Specifications (PNS/BAFS 324:2021) and Methods of Test (PNS/BAFS 325:2021) pursuant to a Memorandum signed by the Department of Agriculture Secretary dated 30 July 2018, entitled “Preparation of Philippine Agricultural Engineering Standards for SPIS”. In 2022, during the 8 th Review Committee (RC) Meeting of the Bureau of Agricultural and Fisheries Engineering (BAFE)-DA, the Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB) raised concerns on the lack of discharge requirement specified in subclause 4.3.6 under General test condition section of the PNS/BAFS 325:2021, which is important during the testing of the SPIS. In response, the BAFS reconvened the Technical Working Group (TWG) created under Special Order No. 817, series of 2021 (Addendum to Special Order No. 81 series of 2021 entitled, “Creation of TWG for the Development of PNS for Agriculture and Fishery Products, Machinery, and Equipment”) to amend the PNS. The TWG is composed of representatives from relevant government agencies, academe, research institution, Civil Society Organizations (CSO), and private sector. The proposed amended draft PNS underwent a series of TWG meetings and a final Stakeholder Consultation conducted via online platforms before their endorsement to the Department of Agriculture Secretary for approval. The amendment includes the following significant changes compared to the previous version of this Standard: a) Discharge requirement provision is transferred from the Methods of Test to the Performance Requirements in the Specifications; and b) PV performance ratio consideration changed to type of PV instead of PV- pump combination; This Standard cancels and replaces PNS/BAFS 324:2021 which has been technically amended. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. ii  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System — Specifications ICS 65.060.35 Table of Contents Foreword.....................................................................................................................ii 1 Scope.................................................................................................................. 1 2 Normative References......................................................................................... 1 3 Terms and Definitions.......................................................................................... 2 4 Classification........................................................................................................ 4 4.1 SPIS Configuration.............................................................................................. 4 4.2 Pumpset.............................................................................................................. 5 4.3 Controller............................................................................................................. 5 4.4 Irrigation Method.................................................................................................. 5 5 Construction and Structural Requirements.......................................................... 6 5.1 PV Array.............................................................................................................. 6 5.2 Pumpset.............................................................................................................. 7 5.3 Solar Panel Controller.......................................................................................... 8 5.4 Cables and Wires................................................................................................ 8 5.5 Reservoir (optional)............................................................................................. 9 6 Performance Requirements................................................................................. 9 7 Safety Requirements........................................................................................... 9 8 Equipment and Accessories................................................................................ 9 9 Warranties for Construction............................................................................... 10 10 Maintenance...................................................................................................... 10 11 Operation........................................................................................................... 10 12 Testing............................................................................................................... 11 Bibliography............................................................................................................. 12 iii PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 1 Scope This Standard specifies the minimum specification and construction and performance requirements for Solar Powered Irrigation System (SPIS). 2 Normative References The following documents are referred to in the text in such a way that some or all their contents constitute the requirements of this document. The latest edition of the referenced documents (including any amendments) applies. Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB). (2000c). Operator’s manual content and presentation (PAES 102:2000). https://amtec.ceat.uplb.edu.ph/wp- content/uploads/2019/ 07/ PAES-102-Operators-Manual-Content-and- Presentation.pdf Bureau of Agriculture and Fisheries Standards (BAFS)-Department of Agriculture (DA). (2016). Guidelines on after-sales service (PNS/BAFS/PAES 192:2016). http://www.bafs.da.gov.ph/confirm_download?pns=UE5TL0JBRlMgMT kyOjIwMTYgQWdyaWN1bHR1cmFsIGFuZCBGaXNoZXJpZXMgTWFja GluZXJ5IEd1aWRlbGluZXMgb24gQWZ0ZXIgU2FsZXMgU2VydmljZSB QQUVT&pns_id=NDQ0 BAFS-DA. (2022). Solar Powered Irrigation System (SPIS) — Methods of test (PNS/BAFS 325:2022). Institute of Integrated Electrical Engineers of the Philippines (IIEEP). Philippine electrical code. https://www.pdf- archive.com/2016/06/03/philippine-electrical-code/philippine-electrical- code.pdf International Electrotechnical Commission (IEC). (2019). Degrees of protection provided by enclosures (IP Code) (IEC 60529:2019). IEC. (2021). Terrestrial photovoltaic (PV) modules — Design qualification and type approval - Part 1: Test requirements (IEC 61215-1:2021). National Fire Protection Association (NFPA). (2020). National electrical code. https://www.nfpa.org/codes-and-standards/all-codes-and- standards/list-of-codes-and-standards/detail?code=70 Presidential Decree (PD) 1096. (1977). Adopting a National Building Code of the Philippines (NBCP) thereby revising Republic Act (RA) No. 6541. https://www.officialgazette.gov.ph/1977/02/19/presidential-decree-no- 1096-s-1977/ 1 PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 3 Terms and Definitions For the purpose of this Standard, the following terms and definitions shall apply: 3.1 angle of inclination the tilt of the PV module with respect to the horizontal plane 3.2 controller link between motor pump and solar generator that regulates the operation of PV array to pump and is classified into two types: inverter (directly connected to pump set) and charge controller (with batteries) 3.2.1 charge controller monitors the charging and discharging of the battery connected to the PV array (Khamisani, 2018, modified) 3.2.2 inverter converts direct current (DC) from PV module to alternating current (AC) (Morales, 2017, modified) 3.3 photovoltaic (PV) array composed of PV modules connected in combination of series and parallel connections, which convert energy from the sun into electrical energy (Morales, 2010, modified) 3.4 pump agricultural machinery that is used to lift or transfer water from one source to another (AMTEC-UPLB, 2000b, modified) 3.4.1 submersible pump pump designed to operate fully submerged in the water source 3.4.2 surface pump pump designed to operate above water surface 3.5 PV module solar panel assembly of photovoltaic cells mounted in a frame that uses sunlight as a source of energy to generate a DC electricity (Morales, 2010, modified) 2 PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 3.6 PV performance ratio ratio of the input solar power to the PV module and the output power of the inverter/controller 3.7 ray of incidence the angle with which a ray of sunlight strikes the surface of the PV module, measured with respect to a line perpendicular to said surface (Page, 2012, modified) 3.8 reservoir temporary water storage that adds kinetic energy to facilitate water distribution. This is also known as a water tank 3.9 solar irradiance amount of solar energy received by or projected onto a surface, expressed in Watts per square meter (W/m2) (Morales, 2010, modified) 3.10 Solar Powered Irrigation System (SPIS) irrigation system powered by solar energy, using PV technology, which converts solar energy into electrical energy to run a DC or AC motor-based water pump. It consists of solar PV modules, pump set, electronic controls to operate the pump, the required hardware, and in some cases other items like inverters and batteries (BAFE, n.d., modified) 3.11 suction lift the vertical distance from the free suction water level to the center line of the pump suction (AMTEC-UPLB, 2000a, modified) 3.12 system efficiency ratio of the output power of the pump set and the total solar input power (BAFE, n.d., modified) 3.13 total dynamic head total head measure of energy increase imparted to the water by the pump and expressed by the algebraic difference between the total discharge head and total suction head, expressed in meters (m) (AMTEC-UPLB, 2000a, modified) 3  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 4 Classification 4.1 SPIS Configuration The following are the typical configurations for an SPIS as shown in Figures 1-4: 4.1.1 Surface Water Source with Reservoir Figure 1. Configuration setup for a surface water source with reservoir 4.1.2 Surface Water Source without Reservoir Figure 2. Configuration setup for a surface water source without reservoir 4.1.3 Groundwater Source with Reservoir Figure 3. Configuration setup for a groundwater source with reservoir 4  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 4.1.4 Groundwater Source without Reservoir Figure 4. Configuration setup for a groundwater source without reservoir 4.2 Pumpset There are two types of pumps that could be used for the irrigation system, depending on the location of installation namely, surface and submersible pumpsets. 4.2.1 Surface Pumpset Pumpsets in which suction inlets are not submerged in water. 4.2.2 Submersible Pumpset Pumpsets installed below water level. 4.3 Controller The two types of controller are indicated in 4.3.1 and 4.3.2. 4.3.1 Inverter a) converts DC power to AC power b) converts DC power to DC power (voltage conversion) 4.3.2 Charge Controller a) Maximum Power Point Tracking (MPPT) b) Pulse Width Modulation (PWM) 4.4 Irrigation Method 4.4.1 Open Channel Flow of water affected by atmospheric and surface conditions. 4.4.2 Closed Channel The flow of water in completely filled conduits, where no free water surface exists or where surface conditions, is insignificant. 5  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 5 Construction and Structural Requirements Figure 5 illustrates an example of SPIS. The major components of SPIS are the PV modules, pumpset, and controller. 1 4 2 5 3 6 7 8 9 10 11 12 13 14 16 15 17 18 19 20 21 Key: 1 Steel Ladder 12 Grouted Riprap 2 Gate Valve (150 mm) 13 Max Flood Flow 3 GI Pipe (150 mm) 14 Min River Flow 4 Pathways 15 River Bank 5 Variable 16 Surface Pump 6 Concrete Tank 17 Pump Sump 7 GI Pipe (100 mm) 18 Foot Valve 8 Gate Valve (100 mm) 19 Compacted Backfill 9 Pump House 20 Intake Box 10 NGL 21 Trashrack 11 GI Pipe (150 mm) Figure 5. Example of an SPIS (Water Resource Management Division- Bureau of Soils and Water Management [WRMD-BSWM], n.d.) 5.1 PV Array 5.1.1 Mounting Rails of PV Array The panels in the PV array should be installed with a rigid alloy rail made of non-corrosive material. 6  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 5.1.2 Mounting Frame Material The mounting frame structure should be made from Galvanized Iron (GI) pipes or angular bars that are either primed, hot dipped galvanized with minimum of 5 mils or double coated with non-corrosive paint. 5.1.3 Type of PV Module A uniform type and specifications of PV modules, either monocrystalline or polycrystalline, shall be used for the whole array. 5.1.4 Gustiness, Uplift, and Degradation The PV modules shall be able to withstand a minimum gustiness and uplift of 180 kph. The standard degradation should be a minimum of 0.5% annually as per IEC 61215-1:2021 (Terrestrial photovoltaic (PV) modules – Design qualification and type approval – Part 1: Test requirements). 5.1.5 Orientation The orientation of the PV array shall be as per site assessment. It is recommended that the PV array should be facing the south based on efficiency and performance. 5.1.6 Angle of Inclination The angle of inclination in degrees for the PV array shall be dependent on latitude of the location maximizing solar energy to be harvested. 5.1.7 Location Placement of the PV array shall be away from any source of shades any time of the year. If applicable, the site of installation shall be cleared of any trees and other obstructions. 5.1.8 Spatial Requirements The spatial distance between each PV modules should be at least 20 mm. 5.2 Pumpset 5.2.1 Requirements The type, capacity of pump, suction and discharge pipe material, and other basic components shall be dependent on the design of the SPIS. 5.2.2 Protection Dry running, overheating, overloading, voltage transient, and low/high voltage input protection shall be provided for the pumpset. 7  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 5.2.3 Pump Intake A trash rack, made of non-corrosive material or painted with protective coating, shall be installed along with the pump intake. The orientation of the pump shall be dependent on the system design (e.g. submersible or surface). 5.2.4 Pumpset Installation Based on Water Source The pumpset to be used shall be dependent on the water source and total head. Casings for groundwater sources shall be provided. 5.2.5 Pump Discharge A discharge measuring device, such as flow meter or water meter, should be included with the pumpset. 5.3 Solar Panel Controller 5.3.1 Protection The pumpset controller and the PV array controller shall be insect-proofed and weather-proofed by using double-proof box and sealants. 5.3.2 Ingress Protection (IP) Ratings Used A minimum of IP58 (splash proof) rating shall be used as per IEC 60529:2019 (Degrees of protection provided by enclosures [IP Code]). 5.3.3 Circuit Breaker Housing The solar panel controller should be encased with a combiner box. 5.3.4 Size of Controller The capacity of inverter shall be at least 25% higher than pumpset input power requirement. 5.3.5 Controller The controller shall be fully automated based on manufacturers’ specifications. 5.4 Cables and Wires Cables and wirings used for the SPIS shall be in accordance with the Philippine Electrical Code (PEC), using PV cables specific for PV modules. Wiring installations shall be properly protected for weather conditions and other external factors. 8 PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 5.5 Reservoir (optional) If installed, the design of the reservoir should indicate that the intake be at least equal to the outflow during operation. The reservoir shall be able to withstand the design load. The water storage should also include a ladder, drain and overflow sensor, a freeboard, and an intake and outflow valves. Construction shall be in accordance with the PD 1096 (Adopting a NBCP thereby revising RA No. 6541). 6 Performance Requirements 6.1 The performance of SPIS shall be in accordance with the criteria specified in Table 1. Table 1. Performance criteria for SPIS (AMTEC-UPLB, n.d.) Criteria Performance data Maximum PV performance 18 ratio (monocrystalline) Maximum PV performance 19 ratio (polycrystalline) 6.2 The pump set shall have a test report with pump/performance curve prior to installation. 6.3 The required total volume (m3) discharged by the system based on the design during the whole day operation shall be attained. 7 Safety Requirements 7.1 A Rapid Shutdown Device (RSD) shall be installed for roof-mounted panels. 7.2 Lightning arrester shall be installed in accordance with Article 2.80 (Surge Arresters) of the National Electrical Code (NEC). 7.3 Warning signs shall be installed for electrical components on-site. 7.4 Surge Protection Devices (SPD) shall be installed along with the PV module. 7.5 Personal Protective Equipment (PPE) shall be provided for each operator on site. 8 Equipment and Accessories 8.1 Communication devices should be provided on site. 9  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 8.2 Multi-testers should be provided on site. 9 Warranties for Construction 9.1 Warranty shall be provided for parts and services except for normal wear and tear of the following components: 9.1.1 Pumps shall have at least a one-year warranty. 9.1.2 Workmanship warranty shall be at least one year. 9.1.3 PV modules shall have at least 10 years for material warranty and 25 years performance warranty. 9.1.4 Inverters shall have at least a one-year warranty. 9.2 Warranty shall cover those specified under PNS/BAFS 192:2016 (Guidelines on after-sales service). In addition, pest infestation is not covered in the warranty. 10 Maintenance 10.1 Each unit shall be provided with the following basic hand tools including, but not limited to, one set of each of the following: adjustable wrench, pipe wrench, box and open wrenches, Philips, and flat screw-driver. 10.2 The grease points for lubrication of mechanical parts should be provided. 10.3 Solar panels shall be cleaned using the proper tools and procedures based on manufacturer’s manual. 10.4 Cleaning of the solar panels should be performed as the need arises. 10.5 Weeds and grass should be cut when nearing or going above the height of the solar panel array. 10.6 Maintenance of components shall be performed with proper tools and equipment. 11 Operation 11.1 Operators shall wear appropriate clothing, along with the provided PPE during operating hours at all times. 11.2 The operators’ manual based on the PAES 102:2000 (Agricultural machinery – Operators manual – Content and presentation), maintenance schedule, and a list of warrantable parts of the SPIS shall be provided. 10 PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 11.3 Readout of voltage and current of running motor, along with other necessary warnings shall be provided on-site. 12 Testing The SPIS shall be tested in accordance with PNS/BAFS 325:2022 (SPIS – Methods of test). 11  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 Bibliography Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB). (2000a). Agricultural machinery – Centrifugal, mixed flow and axial flow water pumps – Methods of test (PAES 115:2000). https://amtec.ceat.uplb.edu.ph/wp- content/uploads/2019/07/PAES-114-2000.pdf Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB). (2000b). Agricultural machinery – Centrifugal, mixed flow and axial flow water pumps – Specifications (PAES 114:2000). https://amtec.ceat.uplb.edu.ph/wp- content/uploads/2019/07/PAES-114-2000.pdf Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB). (2000c). Operator’s manual content and presentation (PAES 102:2000). https://amtec.ceat.uplb.edu.ph/wp- content/uploads/2019/ 07/ PAES-102-Operators-Manual-Content-and- Presentation.pdf Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB). (n.d.). Photovoltaic (PV) performance ratio [Unpublished raw data]. Bureau of Agricultural and Fisheries Engineering (BAFE)-Department of Agriculture (DA). (n.d.) Protocol – Solar Powered Irrigation System (SPIS) [Unpublished]. Bureau of Agriculture and Fisheries Standards (BAFS)-Department of Agriculture (DA). (2016). Guidelines on after-sales service (PNS/BAFS/PAES 192:2016). http://www.bafs.da.gov.ph/confirm_download?pns=UE5TL0JBRlMgMTkyOjI wMTYgQWdyaWN1bHR1cmFsIGFuZCBGaXNoZXJpZXMgTWFjaGluZXJ5I Ed1aWRlbGluZXMgb24gQWZ0ZXIgU2FsZXMgU2VydmljZSBQQUVT&pns_ id=NDQ0 Bureau of Agriculture and Fisheries Standards (BAFS)-Department of Agriculture (DA). (2022). Solar Powered Irrigation System (SPIS) — Methods of test (PNS/BAFS 325:2022). Eusebio, R., Albalos, R.M., Magmanlac, A.R., Fajardo, A., & Aranguren, D. (2020). Performance status of solar-powered irrigation systems tested by the agricultural machinery testing and evaluation center in the Philippines. Philippine Agriculture and Biosystems Engineering Journal, 3(1), 2-10. https://amtec.ceat.uplb.edu.ph/wp-content/uploads/2021/01/JOURNAL- 2_11_27_20-3.pdf Holthaus, J., Pandey, B., Foster, R., Ngetich, B., Mbwika, J., Sokolova, E., & Siminyu, P. (2017). Accelerating solar water pump sales in Kenya: Return on 12  PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 Investment (ROI) case studies. [International Solar Energy Society Solar World Congress] https://doi.org/10.18086/swc.2017.30.03 Institute of Integrated Electrical Engineers of the Philippines (IIEEP). Philippine electrical code. https://www.pdf-archive.com/2016/06/03/philippine-electrical- code/philippine-electrical-code.pdf International Electrotechnical Commission (IEC). (2019). Degrees of protection provided by enclosures (IP Code) (IEC 60529:2019). International Electrotechnical Commission (IEC). (2021). Terrestrial photovoltaic (PV) modules — Design qualification and type approval - Part 1: Test requirements (IEC 61215-1:2021). Khamisani, A. (2018). Design methodology of off-grid PV solar powered system (A case study of solar powered bus shelter). Eastern Illinois University. https://www.eiu.edu/energy/Design%20Methodology%20of%20Off- Grid%20PV%20Solar%20Powered%20System_5_1_2018.pdf Morales, T. (2010). Design of small photovoltaic (PV) solar-powered water pump system (The Natural Resources Conservation Service-United States Department of Agriculture Technical Note No. 28). https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_046471. pdf Nathanson, J. A. (2010). Water supply system. Encyclopaedia Britannica, Inc. https://www.britannica.com/technology/water-supply-system National Fire Protection Association (NFPA). (2020). National electrical code. https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of- codes-and-standards/detail?code=70 Page, J. (2012). Practical handbook of photovoltaics (2nd ed.). Academic Press. https://doi.org/10.1016/B978-0-12-385934-1.00040-4 Presidential Decree 1096. (1977). Adopting a National Building Code of the Philippines (NBCP) thereby revising Republic Act (RA) No. 6541. https://www.officialgazette.gov.ph/1977/02/19/presidential-decree-no-1096- s-1977/ Sass, J., & Hahn, A. (2020). Solar powered irrigation systems (SPIS): Technology, economy, impacts. Deutsche Gesellschaft für, Internationale Zusammenarbeit (GIZ) GmbH. Scherer, T. (2017). Irrigation water pumps. North Dakota State University. https://www.ag.ndsu.edu/publications/crops/irrigation-water-pumps#section- 3 13 PHILIPPINE NATIONAL STANDARD PNS/BAFS 324:2022 Solar Powered Irrigation System - Specifications ICS 65.060.35 Water Resource Management Division (WRMD)-Bureau of Soils and Water Management (BSWM). (n.d.). Sample design of solar powered irrigation system for surface pump. Department of Agriculture. 14  Department of Agriculture (DA) Bureau of Agriculture and Fisheries Standards (BAFS) Technical Working Group (TWG) for the Philippine National Standard (PNS) on Solar Powered Irrigation System (SPIS) – Specifications and Methods of Test Chairperson Salvatera, Desiree Joy, ABE Bureau of Agricultural and Fisheries Engineering (BAFE)-Department of Agriculture (DA) Vice Chairperson Eusebio, Romulo, ABE Agricultural Machinery Testing and Evaluation Center (AMTEC)-University of the Philippines Los Baños (UPLB) Members 1 Tan, Alexander Nicole, ABE 5 Agoncillo, Mary Christine, ABE 2 Pandiño, Jessa Rica, ABE Agricultural Machinery Testing BAFE-DA and Evaluation Center (AMTEC) -University of the Philippines 3 Bustos, Mara Segreid, ABE Los Baños (UPLB) Philippine Council for Agriculture and Fisheries (PCAF)-DA 6 Mangaoang, Crestituto, ABE 7 Tuates Jr., Andres, ABE 4 Gregorio, Reynaldo, ABE Philippine Society of Agricultural Philippine Center for Postharvest and Biosystems Engineers Development and Mechanization (PSABE) (PHilMech)-DA BAFS Management Team Advisers Roscom, Karen Kristine, PhD Mamaril, Vivencio, PhD Hernandez, Gari Pellinor, DVM Aquino, John Gregory Regalado, Timothy Justine BUREAU OF AGRICULTURE AND FISHERIES STANDARDS BPI Compound Visayas Avenue, Diliman, Quezon City 1101 Philippines T/ (632) 928-8741 to 64 loc. 3301-3319 E-mail: [email protected] Website: www.bafs.da.gov.ph