§ 17
How much concentrate or water should I pour in the bath after titration?
Answer: Degreasing, staining and electroplating baths become weaker as items drag liquid out, and stronger as water evaporates. After titration, you know the bath's concentration. The calculator works out how many litres of concentrate to add to reach the target, and it accounts for the bath growing larger from the addition. If the bath is too strong, it shows how much water to add. If you dose powder, you get the amount in kg.
Massebalance: V × c_målt + x × c_koncentrat = (V + x) × c_mål
Koncentrat x = V × (c_mål − c_målt) ÷ (c_koncentrat − c_mål)
For stærkt bad: vand w = V × (c_målt − c_mål) ÷ c_mål
Pulver (kg) = V × (c_mål − c_målt) ÷ 1000. Her regnes badets volumen som uændret
| Symbol | Meaning | Unit |
|---|---|---|
| bad_volumen | Bath's volume now | L |
| maalt | Measured concentration (titration) | g/L |
| maal | Desired concentration (from the bath's data sheet) | g/L |
| koncentrat | Concentrate's active substance content | g/L |
| = | Concentrate to be added | L |
| = | Water to be added (if the bath is too strong) | L |
| = | Powder or pure substance if you dose in kg | kg |
| = | Bath's volume afterwards | L |
Does not apply when
The calculator's own default values inserted. The figures are calculated with exactly the formula the tool uses.
Substituted
Giver
Members only
Create a free user account to unlock all articles, calculators, templates and range — and get access to quizzes and classes. It takes less than a minute: name, email and a password. No payment card.
Want to try something first? See what you can use without an account — the junior zone, the encyclopedia, the videos and more.
Efter titreringen kender du badets koncentration. Er badet for svagt, skal der koncentrat i. Er det for stærkt, skal der vand i. Beregneren regner mængderne og tager højde for, at badet bliver større af tilsætningen.
Et affedtningsbad på 2.000 liter er titreret til 38 g/L. Det skal være 45 g/L, og koncentratet har 600 g/L.
It means: Tilsæt 25.2 L koncentrat. Badet bliver 2,025 L.
Et bejdsebad på 1.500 liter er efter en varm uge 55 g/L, men skal være 50 g/L.
It means: Tilsæt 150 L vand. Badet bliver 1,650 L.
Et bad på 800 liter skal fra 18 til 22 g/L, og du doserer pulver.
It means: Du skal tilsætte 3.2 kg pulver.
Koncentrat = volumen × manglende g/L ÷ (koncentrat g/L − mål g/L).
Titrér igen efter omrøring. Badet skal nu ligge på målet.