Plant-wide checklist

Appendix A · Safety and Hygiene in Pellet Plants and Feed Mills · 7 min read

This brings together the checklists from all twelve chapters. Use it as an annual review or before starting up a new plant. Every question answered "no" is a task for the safety plan in chapter 12.

Chapter 1. Why safety is part of the business

  • Do we know the three or four most serious hazards in our plant?
  • Have we had accidents or near misses in recent years? Are they recorded, and did we analyze why they happened?
  • Is there a person responsible for safety, with the time and authority to do that job?
  • Do we know which safety regulations apply to our plant in our country?
  • Is safety discussed in management meetings, just like production and sales?
  • Do expansion projects and equipment purchases include safety from the start?
  • Does every worker know how to stop their equipment and what to do in an emergency?
  • Have we reviewed with our insurer which safety measures it requires or recommends?

Chapter 2. The map of regulations

  • Do we know which safety law and regulations apply to our plant?
  • Do we have the official, current texts, not just summaries?
  • Did we make a list of what the regulations require us to have in writing? Do we have it?
  • Did we check whether our insurer or our customers require additional standards, such as NFPA or ISO 45001?
  • Does every machine in the plant have its manual in our language?
  • Do we have the declarations of conformity for the equipment, where applicable?
  • Do purchases of new equipment include the safety requirements in writing?
  • Does someone check every year whether any regulation that affects us has changed?

Chapter 3. Combustible dust and explosions

  • Do we know which dusts in our plant are combustible? Do we have a lab analysis or published data for our materials?
  • Has a dust hazard analysis been done, in writing and up to date?
  • Is there a written housekeeping program, with frequency, method and a person responsible? Is it recorded?
  • Is cleaning with compressed air prohibited in dusty areas?
  • Do the cyclones, filters and ducts have spark detection, venting or suppression, according to their risk?
  • Is the cooler monitored to prevent embers and hot spots?
  • Is there a work permit for welding, cutting and grinding?
  • Is the electrical equipment suitable for the dusty areas?
  • Do staff know what to do if a piece of equipment catches fire?

Chapter 4. Machines: guarding and lockout before you intervene

  • Have we identified the catching, cutting and striking points on every machine?
  • Do all drives (belts, chains, couplings, shafts) have fixed guards in place?
  • Do the inspection doors on mills, mixers and pellet mills have interlocks? Do they work?
  • Do we check periodically that no interlock is bypassed or broken?
  • Are the emergency stops visible, within reach and tested?
  • Is there a written lockout procedure for each machine that covers all its energy sources?
  • Does every person who intervenes have their own lock and tag?
  • Do contractors know and follow our lockout procedure?
  • Is the lockout procedure reviewed at least once a year?
  • When we buy a machine, do we ask in writing for its guards and lockout points?

Chapter 5. Electrical hazards

  • Are the panels closed, locked, with no energized parts within reach and with labeled circuits?
  • Is the space in front of the panels clear?
  • Are there temporary installations that became permanent?
  • Do we measure grounding and the continuity of exposed conductive parts, with a current record?
  • Are the RCDs tested periodically?
  • Are the main panels outside dusty areas, or do they have adequate protection?
  • Is there a program for cleaning and inspecting panels, with the equipment de-energized?
  • Are dusty areas classified, and is the electrical equipment suitable for each zone?
  • Is it written down who may work on the electrical installation and with what authorization?
  • Does the lockout procedure include verifying the absence of voltage?

Chapter 6. Noise and vibration

  • Do we have a current noise map of the plant, made by a professional?
  • Do we measure the personal exposure of the most exposed positions, such as the mill operator and the pellet mill operator?
  • Do we know which limit and which exchange rate apply in our country?
  • Are areas above the action level marked with signs?
  • Is there a plan to reduce noise at the source, with deadlines and owners?
  • Do we ask the supplier for noise data before buying a machine?
  • Are hearing protectors available, suitable and worn the whole time?
  • Do exposed staff have periodic audiometric tests, and are the results reviewed?
  • Do we assess vibration from hand tools and vehicles?

Chapter 7. Silos, storage bins and confined spaces

  • Have we identified and posted signs on all the confined spaces in the plant?
  • Is there a written entry procedure, and is a permit used for every entry?
  • Are loading and unloading equipment locked out and tagged out before entering a silo or a hopper?
  • Do we have a gas detector that measures at least oxygen and CO, calibrated and in use?
  • Is pellet storage always ventilated, with signs on both sides of the door?
  • Are there a harness, a lifeline and rescue equipment suitable for each silo?
  • Is an attendant always stationed outside, with no other tasks, while someone is inside?
  • Is there a written rescue plan, and has it been practiced?
  • Is walking on the material to make it flow, and entering below bridged material, prohibited?
  • Do entrants, attendants and supervisors have the training our country's regulations require?

Chapter 8. Fires and self-heating

  • Do we measure the material temperature in pellet and feed silos, at several points, and record the trend?
  • Do we measure CO at the top of the pellet silos?
  • Do we inspect silo roofs, joints and openings to keep water out?
  • Do we check that pellets do not go into storage hot, damp or with a lot of fines?
  • Do staff know that water is not used inside a pellet silo and that a silo on fire must not be opened?
  • Is there an extinguishing plan for silo fires prepared with the fire department, including the nitrogen supply?
  • Do the ducts, cyclones and filters have the spark detection called for by the risk assessment?
  • Do we have written prevention and emergency plans, with people responsible for them?
  • Are extinguishers accessible, inspected every month and maintained every year?
  • Have staff received training in extinguisher use and evacuation this year?

Chapter 9. Animal feed hygiene

  • Do we have a written food safety plan based on a hazard analysis (HACCP or whatever our regulations require)?
  • Do we buy only from registered or approved suppliers, and can we prove it?
  • Is every incoming lot sampled and recorded, with written rejection criteria?
  • Do we have a procedure against cross-contamination (cleanout, flushing, sequencing), and is every formula change recorded?
  • Is flush material identified and stored separately?
  • Do we test for mycotoxins in the highest-risk raw materials and according to the feed's intended use?
  • Is the finished product area separated from the raw material area, and is condensation controlled in coolers and silos?
  • Is there a pest control program with a map, frequency and records?
  • Is there a written cleaning program with frequency, method, person responsible and record?
  • Can we trace a lot backward (raw materials) and forward (customers) within a few hours?
  • In wood pellet plants: do we check the origin of the wood, and do we clean the magnetic separators and record it?

Chapter 10. Loads, postures and personal protective equipment

  • Have we identified every job where bags are lifted by hand, and how many lifts each person makes per shift?
  • Have we assessed those jobs with a recognized method (NIOSH, the table in Resolución 295/2003, NOM-036 or another)?
  • Does the weight of our bags comply with our country's legal limit?
  • Have we mechanized, or do we plan to mechanize, bagging and palletizing?
  • Are the loading openings on mixers and hoppers at a reasonable height?
  • Do we inspect big bags before each lift and use a suitable lifting attachment?
  • Is standing underneath a suspended big bag prohibited?
  • Do we have a written PPE assessment for each job?
  • Do we record the PPE issued to each worker?
  • Do respirator users have a medical evaluation and a fit test?
  • Is wearing gloves near moving parts prohibited?

Chapter 11. Training and safety culture

  • Is there a written annual training program, with topics by position and by level?
  • Does every new person receive onboarding before starting work?
  • Is there a period of supervised work and a signed authorization before leaving them alone?
  • Is training repeated when someone changes positions or a new machine arrives?
  • Is lockout/tagout training hands-on, at the machine?
  • Do special tasks (silos, confined spaces, hot work) have their own training and authorization?
  • Do contractors receive onboarding and work under a permit?
  • Were drills held this year, and were they recorded with their improvements?
  • Does every training session have a record with date, topic, duration, instructor and signatures?
  • Do operators know they can, and must, stop an unsafe task?
  • Are near misses reported and analyzed?

Chapter 12. The plant safety plan

  • Do we have a risk matrix by workstation and by equipment, written and reviewed this year?
  • Is there an annual plan with actions, owners and dates?
  • Is there a regular meeting to follow up on the plan?
  • Do we keep records of housekeeping, maintenance, lockout, hot work, confined space entries and training?
  • Are records filled in at the time, and does someone review them?
  • Do we record accidents, incidents and near misses?
  • Is every accident investigated for root causes, with corrective actions that are verified?
  • Do we carry out routine inspections with checklists?
  • Was there at least one internal audit in the past year?
  • Does management review the results once a year and set the next plan?
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