Technical Name: INTERMEDIATE NR 20 TRAINING COURSE CLASS III FOR WORK WITH FLAMMABLES AND COMBUSTIBLES – TAUGHT IN ENGLISH
Reference: 58882
We provide Courses and Training; We perform Technical-Language Translations and Versions in: Portuguese, English, Spanish, French, Italian, Mandarin, German, Russian, Swedish, Dutch, Hindi, Japanese and others upon request.
Intermediate NR20 Course English
The objective of the Intermediate NR20 Course English is to train workers to operate safely in facilities that handle flammable and combustible liquids, in accordance with the technical criteria established by Regulatory Standard No. 20. Thus, the content covers hazard identification, risk analysis, implementation of control measures, proper use of Personal and Collective Protective Equipment (PPE and CPE), and response to emergency situations.
In addition, the training in the Intermediate NR 20 Course in English also includes the correct issuance, use, and control of the Permit to Work (PT), ensuring legal compliance, document traceability, and operational integrity. The course ensures that the professional is technically qualified to operate in classified areas, with a focus on preventing, controlling, and mitigating critical events involving flammable substances.
What are the fundamental physicochemical parameters for characterizing a liquid as flammable or combustible?
The technical characterization of flammable or combustible liquids is based on the following physicochemical parameters:
| Technical Parameter | Definition |
|---|---|
| Flash Point (°C) | Minimum temperature at which flammable vapors are released with external ignition |
| Ignition Point (°C) | Temperature at which the liquid ignites without an external heat source |
| LEL / UEL | Lower and Upper Explosive Limits (vapor/air mixture) |
| Vapor Density | Indicates whether the vapor tends to rise or accumulate near the ground |
These data determine the degree of hazard of the product, directly influencing storage strategies, ventilation, and isolation of ignition sources.
Intermediate NR20 Course English: Why does the absence of physical barriers and ignition source control turn a routine operation into an imminent critical risk?
In environments where flammable liquids are handled, the continuous or intermittent release of volatile vapors can form potentially explosive atmospheres (PEAs), even in seemingly controlled situations. Therefore, the absence of physical containment barriers, technical enclosure, efficient ventilation or isolation of classified areas compromises risk segregation, favoring the uncontrolled dispersion of these vapors.
Thus, the lack of strict control over ignition sources, such as heated surfaces, electrostatic discharges, equipment sparks or even grounding failures, creates a highly unstable scenario. Therefore, the combination between flammable vapors and uncontrolled ignition transforms a routine operation into a critical rupture point.
How to technically validate the use of PPE in activities involving volatile fuels, considering exposure time and material permeability?
The technical validation of PPE in environments with flammable risks requires an integrated approach based on the following fundamental criteria:
Chemical compatibility of the PPE material with the specific flammable liquid (consult the manufacturer’s chemical resistance table).
Continuous and intermittent exposure time, considering permeation and material degradation.
Certification and testing according to standards such as ABNT NBR 14023 (fire-resistant clothing)
Personal Protective Equipment should not be treated as a static barrier, but as a dynamic barrier conditioned to the operational context. Therefore, its effectiveness is directly related to the energy of the environment, frequency of use and active management of the PPE life cycle.
What are the minimum requirements for an emergency response plan involving leakage or fire with flammable liquids?
As established in NR 20 and supported by international best practices, an emergency response plan involving flammable liquids must be structured in a technical, objective and functional manner. The mandatory minimum elements include:
Updated risk map and evacuation route;
Isolation and leak containment procedures;
Identification of brigadiers and critical roles during the emergency;
List of extinguishing agents compatible with the flammables handled;
Integration with external emergency plans (Fire Department, Civil Defense);
Alarm systems, light and sound signaling, and specific PPE.
In addition, the plan must be tested, reviewed periodically and compatible with the real risk scenario of the facility. Its effectiveness depends on continuous operationalization and the familiarity of those involved with the procedures described. Thus, an outdated, unknown or unpracticed plan represents a hidden liability rather than a real protection tool.
Intermediate NR20 Course English: How should the Work Permit (PT) provided for in NR 20 be structured to ensure traceability, legal validity and operational effectiveness?
The Work Permit (PT), as established by NR 20, is a technical-formal instrument that validates the safe execution of activities in areas with flammable risk. To ensure its traceability, legal validity and operational effectiveness, the PT must contain the following mandatory elements:
Detailed description of the activity and location involved
Task-specific Risk Analysis
Implemented control measures (collective and individual)
Technical professional responsible for authorization and execution
Start/end date and time, with validity period
Signatures for acknowledgment and authorization
In addition, the PT must be archived and auditable, ensuring document traceability and legal responsibility. Therefore, operating without a valid, updated and technically grounded PT is not merely an administrative deviation; it is a conscious rupture of the safety system, shifting risk control to chance.
How does the absence of a risk culture compromise even the most robust collective protection systems?
The effectiveness of any collective protection system lies not only in the devices installed but in the operational behavior that sustains them. Therefore, with diluted risk perception, the environment nullifies the practical function of gas sensors, containment barriers, forced ventilation and signaling in classified areas. Safety is not a final product but a living process sustained by continuous attention and a sense of collective responsibility.
In addition, risk culture is the invisible link that connects design, standards and human behavior. Therefore, without it, even systems with high functional reliability become merely scenographic. And there is a silent mental pattern that undermines this link, the automatic thought that “here, this never happens.” This seemingly harmless phrase is the seed of complacency and the statistical beginning of the next serious occurrence.
Intermediate NR20 Course English: What differentiates a certified worker from a truly qualified worker for areas with flammables?
The certificate proves formal participation in a course. True qualification manifests in practice, through how the worker interprets the environment, recognizes subtle variations in operational risk and makes decisions based not only on protocol but on active technical presence. Therefore, they act with predictability, discipline and normative mastery, but also with heightened attention to the dynamics of the field where they operate.
Thus, qualification goes beyond fulfilling workload requirements; it aligns technical knowledge with situational awareness and direct responsibility for the impact of one’s own conduct. Awareness emerges when the operator understands that their attention, or distraction, shapes the behavior of risk.
Click the Link: Criteria for Issuing Certificates according to the Standards
Free Professional Training Basic Notions (Does not replace Academic Education or Technical Training)Certificate of completion
Intermediate NR 20 Course in English
INTERMEDIATE NR 20 TRAINING COURSE CLASS III FOR WORK WITH FLAMMABLES AND COMBUSTIBLES – TAUGHT IN ENGLISH
Total Workload: 16 Hours
Module 1 – Flammables: Characteristics and Risks (2 Hours)
Technical definitions: flammables vs combustibles
Relevant physicochemical properties (flash point, ignition point, LEL/UEL)
Types of flammable products and their physical states
Hazards associated with storage and handling
Module 2 – Collective Control Measures and PPE (2 Hours)
Physical barriers, ventilation and containment
Appropriate Personal Protective Equipment (PPE)
Safety signage and delimitation of classified areas
Good operational practices and safe routines
Module 3 – Ignition Sources and Prevention (2 Hours)
Types of ignition sources (flames, electricity, friction, static electricity, etc.)
Methods for controlling and eliminating ignition sources
Grounding, equipotential bonding and explosion-proof systems
Module 4 – Fire Protection (2 Hours)
Detection and alarm systems
Extinguishing agents suitable for flammables
Procedures for area evacuation and isolation
Coordinated actions with the fire brigade
Module 5 – Emergencies with Flammables (2 Hours)
Identification and response to leaks, fires and explosions
Emergency action plan and risk communication
Evacuation, initial response and containment
Basic first aid for chemical and thermal burns
Module 6 – Detailed Study of NR 20 (2 Hours)
Structure of Regulatory Standard No. 20
Classification of facilities (I, II and III)
Legal and technical responsibilities of employers and workers
Module 7 – Preliminary Hazard/Risk Analysis (2 Hours)
Fundamental concepts of PHA/RA
Identification, assessment and prioritization of risks
Risk analysis exercises in simulated field
Discussion of real cases and incidents
Module 8 – Work Permit for Flammables (2 Hours)
Definition and importance of the Work Permit (PT)
Mandatory elements: activity description, control measures, validity
Issuance, cancellation and filing of the PT
Procedures for releasing and closing critical activities
Completion and Certification:
Practical Exercises (when contracted);
Evidence Recording;
Theoretical Evaluation;
Practical Evaluation (when contracted);
Certificate of Participation.
NOTE:
We emphasize that the General Normative Program Content of the Course or Training may be changed, updated, with items added or removed as necessary by our Multidisciplinary Team. Our Multidisciplinary Team is authorized to update, adjust, modify and/or remove items, as well as insert or remove Standards, Laws, Decrees or technical parameters they deem applicable, whether related or not, and the Contracting Party is responsible for complying with the requirements set forth in the relevant Legislation.
Intermediate NR 20 Course in English
Intermediate NR 20 Course in English
Participants without experience:
Minimum workload = 32 hours/class
Participants with experience:
Minimum workload = 16 hours/class
Update (Refresher):
Minimum workload = 08 hours/class
Update (Refresher): The employer must conduct periodic training every two years and whenever any of the following situations occur:
a) change in procedures, conditions or work operations;
b) event indicating the need for new training;
c) return to work after an absence longer than ninety days;
d) change of company;
e) Replacement of machine or equipment.
Operators must have completed elementary education and must receive qualification and specific training on the equipment, with a minimum workload of sixteen hours and a biennial update with a minimum workload of four hours.
Intermediate NR 20 Course in English
Intermediate NR 20 Course in English
Intermediate NR 20 Course in English
NR 20 – Safety and Health at Work with Flammables and Combustibles is the standard that establishes mandatory requirements to prevent accidents in activities involving flammable and combustible liquids.
It requires the classification of facilities (Class I, II or III), worker training, the use of risk control measures, and the adoption of emergency procedures, such as response plans and work permits.
It is applied in gas stations, industries, laboratories, terminals and any location that stores or handles flammable products.
Attention: The Course teaches how to Apply the normative concepts of the standard, which enables signing Projects, Technical Reports, Expert Analyses, etc. These are the attributions that the Legally Qualified Professional holds with their Professional Council, such as CREA.
This course aims to study situations in which the application of Concepts and Calculations according to the relevant Standards will be necessary and does not replace the analysis and responsibility of each professional accredited with CREA or other Professional Councils in various situations, where it becomes imperative to respect the conditions of equipment preservation, periodic calibration of instruments, as well as compliance with primary capacity predetermined by PPE manufacturers, among other aspects supported by the corresponding Standards.
Attention:
Distance Learning (EAD), Blended The EAD Certificate, also known as Online, according to LAW No. 9.394 OF DECEMBER 20, 1996, may be used for: Complementary Activities; Company Assessments; Public Tenders; University Extension; Extracurricular hours; Improving chances of employment; Recruitment processes; Internal promotions; Academic Title Evaluations; Doctorate admissions; Master’s admissions; Among other opportunities.
100% EAD (Distance Learning) or Blended courses require a Pedagogical Project and are only valid for the Employer if they fully comply with SEPRT Ordinance No. 915 of July 30, 2019 – NR 01 – General Provisions of the Special Secretariat for Social Security and Labor. Click here
OTHER ELEMENTS WHEN APPLICABLE AND CONTRACTED:
c) Intermediate Course
I) Theoretical program content:
Flammables: characteristics, properties, hazards and risks;
Collective and individual controls for work with flammables;
Ignition sources and their control;
Fire protection with flammables;
Emergency procedures involving flammables;
Study of Regulatory Standard No. 20;
Preliminary Hazard/Risk Analysis: concepts and practical exercises;
Work Permit for Flammables.
II) Practical program content:
Knowledge and use of fire protection systems for flammables.
Safety with Flammables and Combustibles;
Flammable properties of matter;
Combustible properties;
Explosive Atmospheres;
Interpretation of Regulatory Standard NR-20;
Preliminary Risk Analysis;
Concepts and Practical Exercises;
Work Permit for Flammables;
Characteristics of flammables;
Properties of combustibles;
Hazards and risks arising from exposure;
Collective control for work with flammables;
Individual control for work with flammables;
Protective equipment;
PPE and CPE;
Ignition sources;
Fire Protection with Flammables;
Emergency procedures with flammables;
Emergency response procedures;
Victim assistance;
Familiarization with fire protection systems for flammables;
Proper functioning of protection systems;
Accident prevention;
Procedures and basic first aid notions;
Activity Complements:
Awareness of the Importance of:
PHA (Preliminary Hazard Analysis);
EAP (Emergency Action Plan);
RMP (Risk Management Plan);
Understanding the need for the Rescue Team;
The importance of task knowledge;
Accident prevention and basic first aid notions;
Fire protection;
Risk perception and factors affecting human perception;
Impact and behavioral factors in safety;
Fear factor;
How to discover the fastest and easiest way to develop skills;
How to control the mind while working;
How to manage and organize work time;
Why balancing energy during activity improves productivity;
Consequences of Risk Habituation;
Causes of occupational accidents;
Basic notions of Cause Tree;
Basic notions of Fault Tree;
Understanding Ergonomics;
Workplace Analysis;
Ergonomic Risks;
Communication and Hazard Standard (HCS – Hazard Communication Standard) – OSHA;
Practical Exercises:
Record of Evidence;
Theoretical and Practical Evaluation;
Certificate of Participation.
Learn More: Intermediate NR 20 Course in English:
Regulatory Standard NR-20
Safety and Health at Work with Flammables and Combustibles
[…]
Item 20.11.5 Workers who work in Class I, II and III facilities, enter areas or locations of extraction, production, storage, transfer, handling and manipulation of flammables and combustible liquids, and maintain direct contact with the process or processing while performing maintenance and inspection activities, must take the Intermediate course.
20.11.6 Workers who work in Class I facilities, enter areas or locations of extraction, production, storage, transfer, handling and manipulation of flammables and combustible liquids, and maintain direct contact with the process or processing while performing operational and emergency response activities, must take the Intermediate course.
[…]
20.11.10 Workers who completed the Basic course and subsequently require the Intermediate course must complete an additional 8 hours covering the content established in items 6, 7 and 8 of the Intermediate course, including the practical component.
20.11.11 Workers who completed the Intermediate course and subsequently require the Advanced I course must complete an additional 8 hours covering the content established in items 9 and 10 of the Advanced I course, including the practical component.
20.11.13 The worker must participate in a Refresher course, whose content shall be established by the employer, with the following periodicity:
b) Intermediate course: every 2 years with a workload of 4 hours;
20.11.14 Instructors responsible for delivering the Integration, Basic, Intermediate, Advanced I and II, and Specific courses on Flammables and Combustibles must be proficient in the subject.
20.11.15 The Integration, Basic and Intermediate courses on Flammables and Combustibles must have a professional responsible for their technical organization, who must also be one of the instructors.
20.11.17 For the Integration, Basic, Intermediate, Advanced I and II and Specific courses, the issuance of the certificate shall occur only for workers who, after evaluation, demonstrate satisfactory performance.
20.17.2.2 The building safety officer must designate a technical professional responsible for the installation, operation, inspection and maintenance, as well as for supervising safety procedures during the tank refueling process.
20.17.2.3 Workers involved in the activities of operation, inspection, maintenance and refueling of the tank must be trained with the Intermediate course, according to Annex II.
20.17.3 For underground tanks, the provisions of item 20.17.2.1, caput, subitems “b”, “e”, “f”, “g”, “h”, “i”, “j” and “k”, as well as items 20.17.2.2 and 20.17.2.3, apply, along with the requirements of national technical standards and, in their absence or omission, international technical standards.
F: NR 20
01 – URL FOTO: Licensor’s author: EyeEm – Freepik.com
02 – URL FOTO: Licensor’s author: noomcpk – Freepik.com
03 – URL FOTO: Licensor’s author: EyeEm – Freepik.com
04 – URL FOTO: Licensor’s author: EyeEm – Freepik.com
