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One of the criteria with which the filling system is chosen, especially in recent pens, is that of its capacity. It is also one of the criteria on the basis of which we most frequently take sensational dazzles, also because there is a widespread prejudice that a [[piston filler]] pen contains much more ink than a [[cartridge filler]] one, which, with pens on the market today, is almost never true.  

One of the criteria with which the filling system is chosen, especially in recent pens, is that of its capacity. It is also one of the criteria on the basis of which we most frequently take sensational dazzles, also because there is a widespread prejudice that a [[piston filler]] pen contains much more ink than a [[cartridge filler]] one, which, with pens on the market today, is almost never true.  

The following table of cartridge capacity is used as a reference (the measures mentioned have been collected on the internet, and have not yet been verified with the methodology adopted later; when they will be, the relevant column will be updated):

The following table of cartridge capacity is used as a reference. The measures mentioned have been collected on the internet, and have not yet been verified with the methodology adopted later (weight difference between full and empty); when they will be, the relevant column will be updated:

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{| class="wikitable" style="float:center

{| class="wikitable" style="float:center

! Brand !!  Type !! Capacity !! Verified

! Brand !!  Type !! Capacity !! Verified

|-

|-

| [[Pelikan]] || short || 0.77 ml || no

| [[Pelikan]] || short || 0.85 ml || yes

|-

|-

| [[Parker]] || long || 1.47 ml || no

| [[Parker]] || long || 1.47 ml || no

|-

|-

| Internazional || long || 1.66 ml || no

| Internazional || long || 1.66 ml || no

|}

|}

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For this reason it was decided to start a collection of measures of the actual ink capacity of pens, but for a measure to qualify as such (and not be reduced to a simple statement), it must be repeatable, so in addition to the results of the same, the methodology used to obtain it must also be detailed.

For this reason it was decided to start a collection of measures of the actual ink capacity of pens, but for a measure to qualify as such (and not be reduced to a simple statement), it must be repeatable, so in addition to the results of the same, the methodology used to obtain it must also be detailed.

| Pelikan MK10  || [[piston filler|piston]] || 13.67 ± 0.01 g || 15.06 ± 0.02 g || 13.99 ± 0.02 g || 1.39 ± 0.03 ml || 1.07  ± 0.04 ml  

| Pelikan MK10  || [[piston filler|piston]] || 13.67 ± 0.01 g || 15.06 ± 0.02 g || 13.99 ± 0.02 g || 1.39 ± 0.03 ml || 1.07  ± 0.04 ml  

|-

|-

| [[Astoria No. 2]]  || [[safety]] || 19,84 ± 0,01 g || 21,40 ± 0,01 g || 19,96 ± 0,02 g || 1,59 ± 0,02 ml || 1,44  ± 0,03 ml  

| [[Astoria No. 2]]  || [[safety]] || 19.84 ± 0.01 g || 21.40 ± 0.01 g || 19,96 ± 0.02 g || 1.59 ± 0.02 ml || 1.44  ± 0.03 ml

| Pelikan M800  || [[piston filler|piston]] || 29.13 ± 0,01 g || 30.77 ± 0.02 g || 29.54 ± 0,02 g || 1.64 ± 0.03 ml || 1.23  ± 0.04 ml

|[[Montblanc 149]] (post '95)|| [[piston filler|piston]] || 29.95 ± 0.01 g || 32.01 ± 0.01 g || 30.45 ± 0.02 g || 2.06 ± 0.02 ml || 1.56  ± 0.04 ml  

|-

|-

|}

|}

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{{CategorizeArticle|Principianti|Misure}}

{{CategorizeArticle|Principianti|Misure}}