Quick way to work out TTD and TTP

[Ryster]

Just wondered if anyone had any quick ways of working out Tightness test pressure and durations!?

I hate doing it the way I was taught at college years ago, and would like to think someone somewhere has a quicker way of doing it!!?

Thanks everyone!

 

[SimonJohns]

Are we talking IGE/up/1 1a or 1b


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[Ryster]

UP1a my friend.

 

[leelister6]

Am I missing summat ere? Tightness test is 20mbar for 3 mins inc stabilization. Whatchoo talkin bout Willis?!

 

[fuzzy]

Just wondered if anyone had any quick ways of working out Tightness test pressure and durations!?

I hate doing it the way I was taught at college years ago, and would like to think someone somewhere has a quicker way of doing it!!?

Thanks everyone!

not sure what your getting at, can you elaberate please

 

[tamz]

Big stuff Fuzzy

to up1a
You need to work out the volume and decide what guage you are using then basically read from the tables.;
TTP = op
TTD
Letby according to tables ie < 0.5 2mins, <0.8 3mins, <1 4 mins
Stabalisation = ttd or 6 mins whichever greater
ttd from tables
allowable pressure drop from tables.

UP1 is harder as you need to work it all out. Not any easy way really.

 

[SimonJohns]

Am I missing summat ere? Tightness test is 20mbar for 3 mins inc stabilization. Whatchoo talkin bout Willis?!

Up1a. Alot more advanced than just domestic


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[Ryster]

Thanks lads.

Didn't really think there would be a quicker way, the way to do it is the way to do it I suppose.

It wad more because I have just had to work a massive one out, took almost 20 minutes and was an complete pain.

Volume, mild steel, elbows, GRM, what Type of gauge I was using, smallest room volume for permitted drop. It was a mental one, maybe next time I shall have a biscuit and a tea and calm down eh!?

 

[SimonJohns]

Thanks lads.

Didn't really think there would be a quicker way, the way to do it is the way to do it I suppose.

It wad more because I have just had to work a massive one out, took almost 20 minutes and was an complete pain.

Volume, mild steel, elbows, GRM, what Type of gauge I was using, smallest room volume for permitted drop. It was a mental one, maybe next time I shall have a biscuit and a tea and calm down eh!?

Quickest way to always do the test is with a digi manometer with 2 decimal places
And leave calcs on site for next time

I've written iv and ttd on the meter before now, just to help me next time


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