#145349
Corraigh leis an tslat ghloine, fág an tslat san eascra agus clúdaigh an t-eascra le gloine uaireadóra.
Stir with the glass rod, which should be left in the beaker, and cover the beaker with a watchglass.
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#504630
Aistrigh aon snáithín iarmharach isteach sa bhreogán tríd an eascra a ní le démheitiolformaimíd.
Transfer any residual fibre to the crucible by washing out the beaker with dimethylformamide.
#1806761
Cuirtear tuairim is 50g den sampla – go dtí an 0,01gram is gaire – isteach san eascra (5.2).
Weigh to the nearest 0,01 g approximately 50 g of the sample into the beaker.
#1806764
Déantar a bhfuil san eascra a scagadh tríd an tonnadóir ina bhfuil an criathar tástála.
Filter the entire contents of the beaker through the funnel containing the test sieve.
#3232860
Cumhdaigh an t-eascra le clog-ghloine nó feistigh an fleascán cónúil le comhdhlúthadán aife.
Cover the beaker with a watch glass or fit the conical flask with a reflux condenser.
#3233268
Aistrigh an luaith chuig eascra 250 ml.
Transfer the ash into a 250 ml beaker.
#3233271
Cuir an t-eascra ar dhabhach ghainimh agus galaigh é go dtí go mbeidh sé tirim chun an tsilice a dhéanamh dothuaslagtha.
Place the beaker on a sand bath and evaporate until dry to make the silica insoluble.
#3233639
Taisrigh an luaith le huisce agus aistrigh chuig eascra 250 ml í.
Moisten the ashes with water and transfer these in a beaker of 250 ml.
#3233644
Corraigh leis an tslat ghloine é, a fhágfar san eascra, agus cumhdaigh an t-eascra le clog-ghloine.
Stir with the glass rod, which shall be left in the beaker, and cover the beaker with a watch-glass.
#2455902
Má úsáidtear eascra síothlaithe tónchónach, corrófar an meascán le teann nirt ar feadh 15 s ar a laghad agus déanfar aon cháithnín a ghreamaíonn de thaobh an eascra a ní go cúramach síos an dromchla laistigh le 10 ml TCE glan ar a laghad.
If a conical bottomed settling beaker is used then the mixture shall be vigorously stirred for at least 15 s and any particles adhering to the side of the beaker shall be carefully washed down the inside surface with at least 10 ml of clean TCE.
#145352
Nigh an t-eascra agus scag le 5 ml d'aigéad hidreaclórach 6 N te (3.2) agus faoi dhó le huisce fiuchta.
Wash the beaker and filter with 5 ml of hot 6 N hydrochloric acid (3.2) and twice with boiling water.
#1806763
Clúdaítear an t-eascra le clog-ghloine agus fág go leataobh go ceann uair an chloig ag (25 ± 2) °C.
Cover the beaker with a watch glass and leave to stand for one hour at 25 (± 2) °C.
#3232500
Measc 0,5 ml de shárocsaíd hidrigine (pointe 3.1) le 4,5 ml de thuaslagán aigéid fhormaigh-feanóil (pointe 3.19) in eascra beag.
Mix 0,5 ml hydrogen peroxide (point 3.1) with 4,5 ml formic acid-phenol solution (point 3.19) in a small beaker.
#3232519
Déan 2,2 g de chlóiríd sóidiam (pointe 3.10) a thuaslagadh in eascra 100 ml in éineacht le 30 ml de mhaolán ciotráite (pointe 3.24).
Dissolve 2,2 g sodium chloride (point 3.10) in 100 ml beaker with 30 ml citrate buffer (point 3.24).
#3232545
Lig don dríodar socrú agus cuir 10,0 ml den fhorleacht isteach in eascra 100 ml le pípéad.
Allow the sediment to settle and pipette 10,0 ml of the supernatant solution into a 100 ml beaker.
#3232719
Lig don dríodar socrú agus cuir 10,0 ml den fhorleacht isteach in eascra le pípéad.
Allow the sediment to settle and pipette 10,0 ml of the supernatant solution into a beaker.
#3233213
Cuir an luaith in eascra 250 go 400 ml agus úsáid á baint as 75 ml d’aigéad hidreaclórach (pointe 3.1).
Place the ash in a 250 to 400 ml beaker using 75 ml of hydrochloric acid (point 3.1).
#3233219
Déan 5 g den sampla a mheá don mg is gaire agus cuir in eascra 250 go 400 ml é.
Weigh 5 g of the sample to the nearest mg and place in a 250 to 400 ml beaker.
#3233225
Cuir an luaith in eascra 250 go 400 ml agus úsáid á baint as 75 ml d’aigéad hidreaclórach (pointe 3.1); téigh ar aghaidh mar a thuairiscítear sa dara fomhír de phointe 5.1.
Place the ash in a 250 to 400 ml beaker using 75 ml of hydrochloric acid (point 3.1); continue as described in the second subparagraph of point 5.1.
#3233273
Scinceáil an leacht isteach i bhfleascán toirtmhéadrach 500 ml, agus an t-eascra á shruthlú roinnt uaireanta le huisce te.
Decant the liquid into a 500 ml graduated flask, rinsing the beaker several times with hot water.
#3233647
Nigh an t-eascra agus an scagaire le 5 ml d’aigéad hidreaclórach te 6 mhol/lítear (pointe 3.2) agus faoi dhó le huisce fiuchaidh.
Wash the beaker and filter with 5 ml of hot 6 mol/litre hydrochloric acid (point 3.2) and twice with boiling water.
#145345
Nigh an breogán le hiomlán 5 ml tuairim d'aigéad hidreaclórach (3.1) agus cuir seo go mall agus go cúramach leis an eascra (d'fhéadfadh go mbeadh imoibriú fuinniúil ann mar gheall ar dhéanmhaíocht CO2).
Wash the crucible out with a total of about 5 ml of hydrochloric acid (3.1) and add the latter slowly and carefully to the beaker (there may be a vigorous reaction due to CO2 formation).
#2455858
Mar mhalairt air sin, i gcás dríodrú TCE aonair amháin, féadfar eascra eascra síothlaithe cóntónach a úsáid ar choinníoll gur léirigh an tsaotharlann go bhfuil na leibhéil bhraite coibhéiseach leis an leibhéal braite a fhaightear trí úsáid a bhaint as tonnadóir deighilte na gloine cónúil.
Alternatively, for single TCE sedimentation only, a conical bottomed settling beaker may be used provided the laboratory has demonstrated that detection levels are equivalent to that obtained using the conical glass separation funnel.
#2455898
Déanfar cuid 10 g (cruinneas go 0,01 g) den fhoshampla talúnda a aistriú go dtí an tonnadóir deighilte nó go dtí eascra síothlaithe cóntónach agus cuirfear 50 ml TCE leis.
A portion of 10 g (accurate to 0,01 g) of the ground sub-sample shall be transferred into the separation funnel or conical bottomed settling beaker and 50 ml of TCE shall be added.
#2455903
Fágfar an meascán ansin ar feadh 3 nóiméad agus ansin corrófar arís é ar feadh 15 s agus ní mór aon cháithnín a ghreamaíonn de thaobh an eascra a ní go cúramach síos an dromchla laistigh le 10 ml TCE glan ar a laghad.
The mixture shall be left to stand for 3 min and then stirred again for 15 s and any particles adhering to the side of the beaker shall be carefully washed down the inside surface with at least 10 ml of clean TCE.
#3232547
Cuir 10,0 ml den tuaslagán a leanann as isteach in eascra 100 ml agus coigeartaigh pH chuig 2,20 agus úsáid á baint as tuaslagán hiodrocsaíde sóidiam (pointe 3.18), aistrigh chuig fleascán toirtmhéadrach a bhfuil an toirt iomchuí ann agus úsáid á baint as maolán ciotráite (pointe 3.24), agus líon go dtí an toirt inmhianaithe leis an maolán (pointe 3.24).
Place 10,0 ml of the resulting solution into a 100 ml beaker and adjust the pH to 2,20 using sodium hydroxide solution (point 3.18), transfer to a volumetric flask of appropriate volume using citrate buffer (point 3.24), and make up to the mark with the buffer solution (point 3.24).
#3232583
Déan inneachar an bhuidéil a aistriú go cainníochtúil chuig eascra 250 ml nó chuig fleascán réthónach 250 ml, ag brath ar an nós imeachta um choigeartú pH (pointe 5.3.3), agus úsáid á baint as maolán ciotráite (pointe 3.24).
Depending on the procedure for pH adjustment (point 5.3.3), quantitatively transfer the contents of the bottle to a 250 ml beaker or a 250 ml round-bottomed flask, using citrate buffer (point 3.24).
#3232859
Déan 2,5 g den sampla a mheá don 1 mg is gaire (féach pointe 8.2), cuir in eascra 400 ml nó i bhfleascán cónúil 300 ml é agus cuir 100 ml d’aigéad hidreaclórach (pointe 3.3) agus bloghanna slíogairt leis.
Weigh 2,5 g of the sample to the nearest 1 mg (see point 8.2), place in a 400 ml beaker or a 300 ml conical flask and add 100 ml of hydrochloric acid (point 3.3) and fragments of pumice stone.
#3233222
Fan go dtí go stopfaidh aon scaoileadh gáis agus ansin cuir an t-eascra i ndabhach uisce fiuchaidh agus coimeád ansin é ar feadh 30 nóiméad nó níos faide, más gá, chun aon stáirse a d’fhéadfadh a bheith ann a hidrealú go maith.
Wait for any release of gas to cease then place the beaker in a boiling water bath and keep it there for thirty minutes or longer, if necessary, in order to hydrolyse thoroughly any starch which may be present.
#3233640
Nigh an breogán le thart ar 5 ml d’aigéad hidreaclórach (pointe 3.1) san iomlán agus cuir an t-aigéad go mall agus go cúramach leis an eascra (d’fhéadfadh imoibriú bríomhar tarlú i ngeall ar fhoirmiú CO2).
Wash the crucible out with a total of about 5ml of hydrochloric acid (point 3.1) and add the latter slowly and carefully to the beaker (there may be a vigorous reaction due to CO2 formation).