REPUBLIC OF THE PHILIPPINES EDICT OF GOVERNMENT In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. PNS/PAES 141 (2005) (English): Agricultural Machinery -- Weeder -- Specifications I ~ • PHILIPPINE NATIONAL STANDARD PNS/PAES 141 :2005 (P AES published 2004) ICS 65.060 Agricultural Machinery - Weeder - Specifications BUREAU OF PRODUCT STANDARDS DEPARTMENT OF TRADE & INDUSTRY PHiliPPINES FEB 2 1 2006 PHILIPPINE NATIONAL STANDARD PNS/PAES 141:2005 (PAES published 2004) National Foreword This Philippine Agricultural Engineering Standards PAES 141:2004, Agricultural Machinery - Weeder - Specifications was approved for adoption as a Philippine National Standard by the Bureau of Product Standards upon the recommendation of the Agricultural Machinery Testing and Evaluation Center. -------------------------------------------------------------------- PHILIPPINE AGRICULTURAL ENGINEERING STANDARD PAES 141: 2005 Agricultural Machinery _.- Weeder - Specifications (Circulated) Foreword The fotIDulation of this National Standard was initiated by the Agricultural Machinery Testing and Evaluation Center (AMTEC) with support frOln the Departtnent of Agriculture (DA). This standard has been technically prepared in accordance with BPS Directives Part 3:2003 - Rules for the Structure and Drafting of International Standards. The word "shall" is used to indicate Inandatory requirements to confonn to the standard. The word "should" is used to indicate that among several possibilities one is recommended as particularly suitable without Inentioning or excluding others. In the preparation of this standard, the following documents/publications were considered: Regional Network for Agricultural Machinery (RNAM). Testing, Evaluation and Modification of Weeders. Technical Series No. 11: 1982. Regional Network for Agricultural Machinery (RNAM) Test Codes and Procedures for Farm Machinery. Technical Series No. 12: 1983. Smith, D.W., Sims B.G, and D.H. O'Neill. Testing and Evaluation ofA gricultural Machinery and Equipment - Principles and practices. F AO Agricultural Services Bulletin 110. 1994. A-125 PfULIPPINE AGRICULTURAL ENGINEERING STANDARD PAES 141: 2005 Circulated Agricultural Machinery - Weeder-· Specifications 1 Scope This standard specifies the requirelnents for manual, animal-drawn, and tractor-drawn weeders for dry and wet fields. 2 References The following nornlative documents contain provisions, which through reference in this text, constitute provisions of this National Standard: PAES 102:2000, Agricultural Machinery - Operator's Manual- Content and Presentation P AES 103 :2000, Agricultural Machinery - Method of Sampling PA ES 107 :2000, Agricultural Machinery - Hitch for Walking-type Agricultural Tractor - Specifications PAES 118:200 I, Agricultural Machinery - Four-Wheel Tractor - Specifications P AES 142 :2004, Agricultural Machinery - Weeder - Methods of Test 3 Definitions Fo r the purpose of this standard, the following definitions shall apply: 3.1 weeding efficiency weeding index percentage of weeds renl0ved/destroyed per unit area 3.2 weeder implenlent used to rel11ove/destroy the weeds from an agricultural land 3.3 weeds unwanted plants growing in a field competing with the nlain crop for nutrients, moisture and sunl ight A-126 PAES 141: 2005 (circulated) 4 Classification The classification of weeders shall be as follows: 4.1 By design of soil working part 4.1.1 Blade type Type of weeder with rectangular, triangular or crescent shapes with cutting edges sharpened and hardened (see Figure 1) a. Rectangular Shape b. Triangular Shape c. Crescent Shape Figure 1 - Shapes of Blade A-127 PAES 141: 2005 (circulated) 4.1.2 Tine type Type of weeder with a straight, curved, round or square cross-section steel rods with sharply pointed and hardened soil engaging ends (see Figure 2) a. Straight, Square Tine b. Curved, Square Tine Figure 2 - U'''''''''IIJ'~''' of .3 Rotary type Type of weeder with curved or straight spikes or puddles radially attached to a COlTIlTIOn axle, which rotate to uproot and bury weeds (see Figure 3) 3. Curved Spikes b. Straight Spikes/Puddles Figure 3 - Different of Rotary-type Weeder A-128 PAES 141: 2005 (circulated) 4.2 By power source Manually-operated weeders 1 Hand-held weeder (see Figure 4) Type of weeder which utilize either blade or tine type of soil working parts with short (0.15 In to 0.5 In), Inedium (>0.5 In to 1 In) and long (> 1 In) handles Handle Blade a. Hand-held Weeder with Short Handle Handle Blade b. Hand-held Weeder with Long Handle Figure 4 - Hand-Held Weeder A-129 PAES 141: 2005 (circulated) 4.2.1.2 Push-type weeder Type of weeder which utilizes either blade, tine or rotary soil working paI1s for dry and wet field weeding (see Figure 5) . : t t/ -Handle Spikes Puddler Float a. For Wet Field Weeding Handle -..--.~-~-.~----Tine Assembly b. For Dry Field Weeding Figure 5 - Push-Type Weeder A-130