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Ex equipment, gases and safety at work: one place
An Ex equipment check, a gas and solvent library, two open books, a question engine and a community. All here, all linked to each other.
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Free Ex check, no account needed
Is this equipment right for this zone?
Type the Ex marking from the label or drop a photo of it, pick the zone. The answer takes seconds.
Gas and solvent library
Explosion limits, flash point, gas group, temperature class, gas detection and exposure limits of each substance on one card.
exai
Ask in your own words, in any language. exai finds the articles, gas cards and standards that answer your question.
Occupational Safety and Health
Ask your occupational safety and health question: the answer comes from articles prepared and checked by the editors. Country guides, and Türkiye in detail.
Live gas dispersion model. The lines mark 10%, 50% and 100% of the lower explosive limit. Move your pointer to move the leak.
Drop it here: the tool recognises the file by itself
Free membership
Reading is open to everyone. Members get more.
An account takes one minute and costs nothing. You appear under a nickname of your choice.
- All gas cards, no daily limitVisitors open three full cards a day.
- Unlimited questions to exaiAnd unlimited Ex checks, kept in your files.
- Save pages, pick up where you left offGas cards, articles and news in one list.
- Ask, answer, voteThe forum and the weekly agenda are written by members.
- A bulletin you set yourselfDaily, weekly or monthly, only the subjects you follow.
- Become a verified expertWrite the book and review the work of your peers.
The open book of explosive atmospheres
Written by the world's experts, approved by majority vote, readable in every language. No company owns it. Its members run it.
II Equipment group II: for all hazardous places except mines endangered by firedamp.
Every certified device carries a line like this. Select each part.
One subject, every language. Select yours.
Contents
Twelve chapters, open to authors. Each is written by verified experts and goes live only when their peers approve it.
- 1How explosive atmospheres formOpen to authors
- 2Flammable gases, vapours and mistsOpen to authors
- 3Combustible dustsOpen to authors
- 4Hazardous area classification and zonesOpen to authors
- 5Protection concepts: d, e, i, m, o, p, q, n, tOpen to authors
- 6Equipment groups, categories and protection levelsOpen to authors
- 7Gas groups and temperature classesOpen to authors
- 8Certification: ATEX, IECEx and national schemesOpen to authors
- 9Gas detectionOpen to authors
- 10Flame detectionOpen to authors
- 11Installation, inspection and repairOpen to authors
- 12Facilities: oil and gas, chemicals, mining, hydrogen, batteriesOpen to authors
A book with no owner
No editor sits above this book. These rules are its only authority, and members can change them by vote.
Article 1
Free to read
Every chapter is free for everyone, everywhere, in every language.
Article 2
Open to all, written by experts
Anyone can join, read, ask and discuss. Writing the book and reviewing are reserved for verified experts: people confirmed by ten active experts who know them personally.
Article 3
Published by majority
A text is published when ten reviewers approve it within ten days, by majority.
Article 4
Written once, read everywhere
Every text is translated into all languages, and native-speaking experts check each translation.
Article 5
No sponsor, no brand
No company can buy, edit or brand the content. Advertising disguised as knowledge is rejected in review.
Article 6
All rights stay with the author
Every published text is kept at atexmarket.com with all rights reserved in the author's name. Authors and reviewers are named, and every revision is traceable.
Article 7
Original texts only
Every text is checked for originality before it reaches reviewers. Texts with a high probability of copying are not published.
Article 8
Real people, real names
Every author is a real, identified person, confirmed by ten verified experts who know their work. Testimonies stay confidential.
Article 9
Controlled distribution
Anyone may share a text if they name the author and atexmarket.com as the source. We monitor the web for copies, report them to the author and pursue uncredited use by legal means.
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Free, in a minute. Read the book, ask questions, discuss standards, run Ex checks and keep your reports. Authors and reviewers are verified experts; you can apply for that later.
Welcome
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