JBL TESTLAB Manual page 43

Note:
In the event that the colour of your test sample is darker than the colours of the chart, dilute the sample with
distilled or nitrate-free water and measure again.
Depending on the dilution, the result must be multiplied as follows to determine the actual nitrate content:
5 ml sample + 5 ml dist. water: result x 2
2 ml sample + 8 ml dist. water: result x 5
1 ml sample + 9 ml dist. water: result x 10
Our tip for the environmentally-friendly user:
All reagents for JBL test sets are available from your retailer as reasonably-priced refill packs!
The instructions are repeated in a series of simple diagrams on the reverse of the colour chart.
Warning and safety notices
NO reagent 1:
3
Danger
H261 In contact with water releases flammable gases. H315 Causes skin irritation. H317
May cause an allergic skin reaction. H319 Causes serious eye irritation. H335 May cause
respiratory irritation. H412 Harmful to aquatic life with long lasting effects.
P101 If medical advice is needed, have product container or label at hand. P102 Keep out
of reach of children. P232 Protect from moisture. P261 Avoid breathing dust. P280 Wear
protective gloves/protective clothing/eye protection/face protection. P335+P334 Brush
off loose particles from skin. Immerse in cool water/wrap in wet bandages.
Hazard-determining component of labelling: sulphanilic acid.
NO reagent 2:
3
Attention
H317 May cause an allergic skin reaction. H341 Suspected of causing genetic defects.
H412 Harmful to aquatic life with long lasting effects.
P101 If medical advice is needed, have product container or label at hand. P102 Keep
out of reach of children. P280 Wear protective gloves/protective clothing/eye protection/
face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or
doctor/physician.
Hazard-determining component of labelling: m-phenylenediamine dihydrochloride.
Silicate Test SiO
Special features:
The JBL silicate test set SiO
saltwater within the range of 0.2 - >6 mg/l (ppm). Using the compensation method specially developed by JBL,
precise and reliable results can be obtained even in moderately discoloured water, e.g. caused by peat filters
and disease treatment. Any possible interference due to the presence of phosphates in the water sample are
eliminated by the delayed addition of reagent 2.
Why test?
Silicon is one of the most common elements in the world. As a result of the weathering of silicate rocks, silicon
2
is for the measurement and routine control of the silicate content in freshwater and
2
41
GB