Yuav ua li cas peb siv volumetric flasks

Taw qhia

Ntau hom kev kuaj iav iav tuaj yeem siv los npaj cov tshuaj daws teeb meem.Qhov tseeb thiab qhov tseeb yog qhov tseem ceeb tshaj plaws, ntim ntim ntim yog qhov kev xaiv zoo tshaj plaws.

Lub raj mis yog ua los ntawm borosilicate iav, uas yog dav siv vim nws cov tshuaj tiv thaiv, kub tsis kam, thiab kho qhov muag zoo.Lawv kuj raug cais raws li Class A;lawv muab qhov siab tshaj plaws ntawm kev ntsuas qhov tseeb thiab qhov tseeb.

Peb muaj 10 hom volumetric flasks xaiv los ntawm: 5, 10, 25, 50, 100, 250, 500, 1000, 2000 ml, lawv muaj ib txoj kab etching los yog teev los qhia cov kab ntawm cov ntim xaiv.Txhua lub raj mis loj tshwj xeeb yog siv los npaj cov tshuaj sib xws rau nws tus nqi nominal.Piv txwv li, tsuas yog thaum npaj cov tshuaj nrog tag nrho ntim ntawm 250 ml, 250 ml volumetric hwj yog qhov kev xaiv tsim nyog.

Txheej txheem

1. Xaiv lub khob loj uas tsim nyog rau koj qhov kev pab cuam.

2. xam thiab ntsuas qhov loj ntawm cov ntaub ntawv uas yuav tsum tau los npaj cov kev daws teeb meem.

3. Hloov cov khoom mus rau lub hwj thiab siv lub funnel los xyuas kom meej tias tsis muaj cov khoom poob thaum lub sij hawm hloov.

4. Yaug ib sab ntawm lub funnel rau hauv lub khob nrog koj cov kuab tshuaj (piv txwv li, dej hauv cov kua dej) kom ntes cov khoom seem uas ua rau lub funnel.

5. Sau lub raj mis ib nrab nrog koj cov kuab tshuaj, npog lub khob thiab tig kom yaj cov khoom siv rau hauv cov tshuaj.

6. Tom qab cov khoom tiav lawm, sau lub khob nrog cov kuab tshuaj yuav luag rau txoj kab etching.

7. Ncua tseg thiab cia cov kua dej ntws mus rau sab ntawm lub hwj.

8. Siv cov tshuaj dropper kom ua tib zoo ntxiv cov kuab tshuaj txaus kom nce hauv qab ntawm cov tshuaj meniscus mus rau theem ntawm txoj kab etching.

9.Capped, sib tov, thiab kev sib hloov txuag koj cov tshuaj kom txog thaum npaj txhij rau kev siv.

1621 A

Volumetric Flask qib A., Nrog rau hauv av-hauv iav stopper lossis yas stopper, ntshiab lossis amber

Peev xwm (ml)

Muaj peev xwm kam rau ua (± ml)

Av qhov ncauj

Qhov siab (mm)

5

0.02 ib

ib 39640

74

10

0.02 ib

ib 39640

90

25

0.03 ib

39734 ib

110

50

0.05 Nws

39734 ib

140

100

0.1

39796 ib

170

200

0.15

14/15

210

250

0.15

14/15

220

500

0.25

16/16

260

1000

0.4

19/17

310

2000

0.6

24/20

370

volumetric hwj


Post lub sij hawm: Sep-22-2021
NUG

Xa koj cov lus rau peb:

Sau koj cov lus ntawm no thiab xa tuaj rau peb