igiciro cya zahabu kuri garama
zahabu nimwe mubyuma byagaciro cyane kandi bikoreshwa cyane mumitako, ibiceri, nibindi bintu byo gushushanya. agaciro ka zahabu kagenwa nubuziranenge nuburemere bwacyo. niba ushishikajwe no kugura cyangwa kugurisha zahabu, ni ngombwa kumenya kubara agaciro kayo neza. muri iki kiganiro, tuzasobanura uburyo bwo kubara agaciro ka zahabu, tuzirikana ubuziranenge bwacyo nigiciro cyo gushonga zahabu.
gusobanukirwa ubuziranenge bwa zahabu
ubuziranenge bwa zahabu bupimirwa muri karat (k) cyangwa ubwiza. 24k zahabu ifatwa nkizahabu nziza kandi igizwe na zahabu 99.9%. Zahabu 21k ni zahabu 87.5%, zahabu 18k ni zahabu 75%, zahabu 14k ni zahabu 58.3%, naho 9k zahabu ni 37.5%. ijanisha risigaye rigizwe nibindi byuma nka silver, umuringa, cyangwa nikel, byongeweho kugirango byongerwe imbaraga nicyuma.
kubara agaciro ka zahabu
kubara agaciro ka zahabu, ugomba kumenya uburemere bwacyo nubuziranenge. igiciro cya zahabu kivugwa muri ounci cyangwa garama. mubihe byinshi, uburemere bwa zahabu bupimirwa muri garama, kandi igiciro kivugwa kuri garama.
intambwe ya 1: menya uburemere bwa zahabu
intambwe yambere nukumenya uburemere bwa zahabu. urashobora gukoresha igipimo cya digitale kugirango upime zahabu neza. niba ugura cyangwa ugurisha zahabu, ni ngombwa kugira uburemere nyabwo bwa zahabu.
intambwe ya 2: menya ubuziranenge bwa zahabu
ubutaha, ugomba kumenya ubuziranenge bwa zahabu. ibi birashobora gukorwa mugushakisha ibimenyetso kuri zahabu, nka 24k, 21k, 18k, 14k, cyangwa 9k. niba nta kimenyetso, urashobora kujyana zahabu kumutako, ushobora kugerageza zahabu no kumenya ubuziranenge bwayo.
intambwe ya 3: kubara agaciro ka zahabu
umaze kumenya uburemere nubuziranenge bwa zahabu, urashobora kubara agaciro kayo. gukora ibi, urashobora gukoresha ibara rya zahabu kumurongo cyangwa ugakoresha formula ikurikira:
agaciro ka zahabu = uburemere bwa zahabu (muri garama) x ubuziranenge bwa zahabu x igiciro cya zahabu kuri garama
kurugero, reka tuvuge ko ufite garama 10 za 18k zahabu. igiciro cyisoko rya zahabu ni 0 kuri garama. kubara agaciro ka zahabu, wakoresha formula ikurikira:
agaciro ka zahabu = garama 10 x 0,75 (ubuziranenge bwa 18k zahabu) x 50 kuri garama
agaciro ka zahabu = 375
mururugero, agaciro ka 18k zahabu ni 50.
igiciro cyo gushonga zahabu
hari nigiciro kijyanye no gushonga zahabu. iyo zahabu yashongeshejwe, igomba gutunganywa kugirango ikureho umwanda, ushobora kwiyongera kubiciro. igiciro cyo gushonga zahabu kirashobora gutandukana bitewe nuru ruganda nubuziranenge bwa zahabu. mubisanzwe, igiciro cyo gushonga zahabu ni hafi 1-2% yagaciro keza ka zahabu.