COLOMBO Potassium Test for Marine Water Instructions
- October 30, 2023
- COLOMBO
Table of Contents
COLOMBO Potassium Test for Marine Water
General Guidelines
- Ensure the test tube is clean before use.
- Clean the tube directly after use.
- Take the volume of the water sample as precisely as possible.
- Keep the dripping bottle perfectly vertical during dripping.
- Take care that no air bubbles are included in the drops.
Test procedure:
- Take a water sample of 1 ml with one of three syringes. Mark the syringes and use them for one test fluid only.
- Add with another syringes 1.0 ml K-1 test fluid and shake the tube for 10 seconds. A white precipitation will occur making the sample turbid.
- Wait for 10 minutes
- Add 5 drops of K-2a test fluid and shake. Subsequently add 5 drops of K-2b test fluid and shake, the sample colours yellow.
- Mount the plastic tip onto the last 1 ml syringe and fill the syringe with exactly 1,0 ml of K-3 test fluid. Above the fluid an airbubble will appear, this is normal. The air compensates for the volume in the tip. Add the fluid slowly until the sample colours blue.
- The number of ml of K-3 test fluid what was needed to let the colour convert from yellow to blue gives the Potassium content according to the information in the chart. You can also calculate the Potassium content by multiplying the qty of ml by 250 and subtract this number from 500. E.g. 0,48 ml needed to convert from yellow to bleu = 0,48 x 250 = 120, subsequently 500 – 120 = 380 mg Potassium per litre.
K-1: Warning
H302:Harmful if swallowed
H373: May cause damage to organs through prolonged or repeated exposure
P102: Keep out of reach of children
P501:Dispose of contents/container to an approved waste disposal plant
P301+312: Call a POISON CENTER or doctor/physician if you feel unwell / EN CAS
D’INGESTION: contains sodio
| Qty K-3 added | K in mg/I | Qty K-3 added | K in mg/I |
|---|---|---|---|
| 0.30 | 425 | 0.50 | 375 |
| 0.31 | 423. | 0.51 | 373. |
| 0.32 | 420 | 0.521 | 370 |
| 0.33 | 418. | 0.53 | 368. |
| 0.34 | 415 | 0.54 | 365 |
| 0.35 | 413. | 0.55 | 363. |
| 0.36 | 410 | 0.56 | 360 |
| 0.37 | 408. | 0.57 | 358. |
| 0.38 | 405 | 0.58 | 355 |
| 0.39 | 403. | 0.59 | 353. |
| 0.40 | 400 | 0.60 | 350 |
| 0.41 | 398. | 0.61 | 348. |
| 0.42 | 395 | 0.62 | 345 |
| 0.43 | 393. | 0.63 | 343. |
| 0.44 | 390 | 0.64 | 340 |
| 0.45 | 388. | 0.65 | 338. |
| 0.46 | 385 | 0.66 | 335 |
| 0.47 | 383. | 0.67 | 333. |
| 0.48 | 380 | 0.68 | 330 |
| 0.49 | 378. | 0.69 | 328. |
| 0.50 | 375 | 0.70 | 325 |
http://www.colombo.nl/kmarinetest
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www.colombo.nl
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The Netherlands
Tel: +31-(0)76-3038727
Colombo BV
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www.colombo.nl
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