Yuav ua li cas paub qhov txawv ntawm Qhov Tseeb thiab Fake Pure Tin Thoob

I. Mloog Nkauj

Maj mam txhuam lub thoob nrog koj cov ntiv tes . 99.9% siab-purity tin ua rau lub suab tsis zoo, tsis muaj suab nrov.

Cov thoob khib nyiab uas muaj cov hmoov txhuas lossis lwm yam impurities yuav tsim lub suab meej, nws yog xim hlau nrog lub suab luv luv.

II. Saib Xim

Qhov tseeb siab -purity tin thoob, tom qab polishing, muaj ib tug sov so, silvery sheen thiab ilv zoo nkauj, zoo li matte silverware.

Cov thoob khib nyiab tsis zoo muaj qhov tsaus, xim dawb, thiab tseem tuaj yeem pom zaj sawv -xim xim lossis xim ntsuab xeb, qhia tias muaj cov impurities xws li tooj liab lossis npib tsib xee.

III. Txheeb xyuas cov khoom siv

Rau cov thoob tin ntawm tib lub ntim, cov thoob khib nyiab uas muaj cov hmoov txhuas yuav hnyav dua, thaum lub thoob cov tin ntshiab muaj qhov sib xws thiab qhov hnyav ua raws li tus qauv ntawm 7.28 g / cm³.

Cov ntshiab ntshiab tin yog qhov muag muag thiab yuav tawm hauv qhov chaw ntiav nrog me ntsis siab; fake tin thoob, tov nrog lwm yam hlau, yog ib qho nyuaj thiab yuav luag tsis muaj cim.

IV. Tshawb nrhiav Kev Ua Haujlwm

Qhov tseeb siab -purity tin poom ua tau ib lub foob nrog ib lub hau sab nraud xwb. Thaum quab yuam kaw, lawv yuav rov qab me ntsis. Lawv feem ntau yog siv tes- sib dhos thiab ua kom zoo nkauj openwork carvings.

Fake tin poom yog ib qho nyuaj thiab cia siab rau ob - txheej hau rau kev sib khi. Lawv feem ntau machined nyob rau hauv ib daim, nrog hnyav embossed npoo thiab heev ob peb kab ntawm handcrafting.

V. Kos Cov Ntawv Sau thiab Nqe

Qhov tseeb, siab -purity tin poom yuav raug cim nrog "S999 zaub mov- qib" daim ntawv lo, ua raws li lub teb chaws tus qauv GB 4806.9-2016.

Tin yog ib qho khoom kim heev. Cov khoom lag luam nrog tus nqi qis heev yog qhov zoo li cov hlau tsis muaj cov kaus poom, ua rau muaj kev nyab xeeb ntawm cov hlau hnyav hnyav.