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In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers with no associated units of measurement. Commonly used are parts-per-million (ppm, 10−6), parts-per-billion (ppb, 10−9), parts-per-trillion (ppt, 10−12) and parts-per-quadrillion (ppq, 10−15). This notation is not part of the International System of Units (SI) system and its meaning is ambiguous.

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  1. Sarah Curtis

    Part appears to have has come off on our new-ish kitchen tap

    Hi We had a new kitchen mixer tap fitted back in October, it was highly rated on tool station and not a bad price. I noticed yesterday that the part in between the tap handle and the body (in the photo) seems to have come off or something odd has happened so it’s showing the inside connections...
  2. D

    Solar thermal system labour and parts pricing

    As I recently had my HW cylinder replaced and we had to leave disconnected the solar thermal system from the HW cylinder and drained out the old glycol. What is involved in re-filling the thermal system with new glycol in terms of number of hours of labour and materials? I got a quote for a bit...
  3. H

    Has this flue gone rusty because the installer used the wrong part?

    The rusty bit with a hole at the top looks quite old, feels flimsy, and is a single skin 100mm x 400mm. The boiler has a 600mm new pipe rising vertically, then a new 135 degree bend (although the paint has come off as you can see), then the rusty pipe, another 135 degree bend which looks very...
  4. I

    What parts do I need to buy to replace drain situation?

    What parts do I need to replace this 40mm setup? I'm thinking of cutting the pipe to the right and replace the rotten part with a flexible connection. The T goes into a ceramic drain pipe.
  5. M

    New part L 55 degrees flow?

    Stumbled across this when researching heat pumps surely this can't be true for gas boilers? And un-enforceable..
  6. B

    How many tasks do you have to do as part of an NVQ level 2?

    I was curious about how many tasks you lot did to pass your portfolio in NVQ level 2 P&H. Thanks.
  7. D

    Part l and range rating boilers

    Do we have to range rate boilers
  8. M

    Does somebody have stock if part for NewTeam shower?

    NewTeam Flow Lever Nt 201 - SP-077-0107 Part needed.
  9. L

    Looking for siamp toilet part

    Hi, I'm looking for a siamp part, it's the white washer under the cap that flips off. I've recently changed the inlet valve and realised the water isn't cutting off because this washer has become hard and brittle so it's not moving. I can't seem to find this part. btw, I don't know what's it's...
  10. S

    Can you re-use a new boiler?

    Hi folks, Another thought... The new Ideal Logic Max boiler did not meet the requirements of the job. However during this installation process, the installer realised the problem. Can you tell me, whether the boiler could be un-installed, taken down from the wall (although some of the gas...
  11. B

    What part is this called?

    Can anyone help me with what this part is called please? I’ve been searching online and local retail merchants but can’t find it currently. Thanks in advance.
  12. L

    unknown shower makes

    hi has anyone got any idea who makes this shower and where i can get parts?
  13. E

    Parts Advice for Gas Hob connection

    Hi, Please can someone advise me on the correct replacement parts to re-connect my gas hob? It is an Indesit PIM 640 AS fitted gas hob and the manual states the fitting is a threaded 1/2 gas cyclindrical male attachment. Do I also need to order a fibre washer or o-ring for this? If so which size...
  14. A

    Kitchen smell - cobbled together parts?

    Hi. The house I have moved into last year has had a smelly sink. I now have a chance to look at it and suspect it’s the trap. Dismantling the trap certainly reveals smells further down. I did think it was just an anti-siphon needed. However looking at this again it looks to be a cobble together...
  15. Deamon90002004

    What is this part? It's part the boiler pump housing

    Hey all, I have an ideal logic combi 35 boiler, it's about a 2010/2011 model, I have a leak from the back of the pump on what looks like a drain valve? I'm not going to mess with it, but it's so I know what to try and say to the company for when they come out. I shall include a picture showing...
  16. E

    Fordham shower parts

    Looking for replacement parts for my Fordham shower as door peg was knocked off, long shot but thought worth an ask, thanks
  17. H

    Macerator Part Query

    • hailsy
    • Thread
    • america macerator parts query usa
    • Replies: 9
    • Forum: USA
  18. Gasmk1

    Adverts blocking parts of threads

    Anybody else struggling with adverts blocking parts of forum threads
  19. A

    What part of my boiler turns my hot water off?

    I have a ideal logic combi boiler what valve turns my hot water off?
  20. M

    Elnur Gabarron Boiler CMX 15 Part

    Does anyone know where to get parts from for a Elnur Gabarron CMX 15 boiler . I need the ribbon cable from the front control panel to the control circuit board.
    • MAC1234
    • Thread
    • america boiler parts usa
    • Replies: 3
    • Forum: USA
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