Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Difference between BS4994 and BS EN 13121:2008 +amendment 1:2010

Difference between BS4994 and BS EN 13121:2008 +amendment 1:2010

Difference between BS4994 and BS EN 13121:2008 +amendment 1:2010

Hi Expert,

I would like to know what is the difference between this two design code which is use to design the hypochlorite generator. I understand that most people are still using BS 4994 eventhough the new code is out ? Can someone tell me what is the differences and is there any impact if people are still using BS4994 instead of the new code?

RE: Difference between BS4994 and BS EN 13121:2008 +amendment 1:2010


The difference is, BS4994 has been used since 1987 (and from 1973 before that): there has never been a case of a tank/vessel correctly designed, constructed, tested and installed failing due to code errors. It is tried and tested.

EN 13121-3 is currently at final (F) draft (pr) 1312-3:2015 (October). As far as I know, no tank or vessel has ever been built to this standard. It is not tried and tested. Despite all objections, it has been forced through by CEN. It uses big chunks of Eurocode..CEN are very keen (obsessed!) on subscripts and there are many typos. However it is better than previous versions. Only way I would consider using is in parallel with BS4994.

First attempt was 2008 (£700) for total rubbish...three or four attempts later we have 2015 version.

I could do wind load (BS4994) in one page; it now takes four.

I am currently designing to BS4994. And, so are the other fabricators and designers.

Do you have any specific questions?



E G Clymer
Resinfab & Associates
Birmingham UK

Ed Clymer
Resinfab & Associates

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close