Paper Size vs GSM (Nyhav) | Gram ib square Meter
Qhov txawv ntawm daim ntawv loj thiab GSM yog nyob rau hauv ntau yam ntawm ib daim ntawv uas lawv xa mus. Nyob rau lub sijhawm dhau los thaum kev tsim cov ntawv loj thiab lawv qhov hnyav tsis tau ua tiav, nws yog npau suav phem rau tus neeg xaiv cov ntawv rau nws lub hom phiaj. Feem ntau, cov ntawv denser, qhov hnyav dua. Nws yuav tsum tau muaj kev txawj ntse, thiab muaj ntau zaus ntawm kev xaiv cov ntawv tsis raug uas ua rau qhov project ua tsis tiav tom qab luam ntawv thiab khi. Txawm li cas los xij, qhov xwm txheej tau hloov pauv tom qab ua qauv ntawm daim ntawv loj thiab daim ntawv hnyav (lossis ntawv ceev) hauv GSM lossis gram ib square meter. Kab lus no yuav qhia meej txog kev sib raug zoo ntawm daim ntawv loj thiab GSM, rau cov txiaj ntsig ntawm cov neeg uas tseem tsis meej pem ntawm daim ntawv loj thiab GSM.
Daim Ntawv Loj yog dab tsi?
Daim ntawv loj qhia qhov ntev ntawm daim ntawv. Cov qauv nrov tshaj plaws rau kev tshaj tawm cov ntawv loj yog ISO 216 thiab ISO 269. Muaj peb lub npe xws li A, B, thiab C. Loj C yog txhais los ntawm ISO 269 thaum loj A thiab B tuaj raws li ISO 216. Qhov system ntawm ISO 216 tau tsim nyob rau hauv xws li ib tug nam piv yog tib yam rau tag nrho cov ntau thiab tsawg daim ntawv, seb lawv yog A, B los yog C. Qhov nam piv yog tshwj xeeb ntawm ib tug mus rau square root ntawm 2. Qhov ntawd txhais tau tias, thaum koj txiav daim ntawv A0. rau hauv ob uas yuav tau txais koj daim ntawv A1. Thaum koj txiav A1 rau hauv ib nrab uas yuav tau txais koj daim ntawv A2. Los ntawm cov ntawv loj, qhov loj me xws li A3, A4, thiab A5 feem ntau siv los ntawm tib neeg.
GSM yog dab tsi?
Yog tias koj hnov lo lus GSM hauv kev sib tham txog kev luam ntawv, koj tuaj yeem paub tseeb tias nws yog cov tuab ntawm daim ntawv uas tau tham txog. Rau cov ntawv hnyav, feem ntau ua raws li tus qauv yog cov qauv tsim los ntawm ISO 536. Lub teb chaws ua raws ISO 536 uas hais txog cov ntawv thiab lub rooj tsavxwm, txhais Grammage, lossis qhov hnyav ib square meter ntawm daim ntawv. A0 yog qhov loj li 1 square meter hauv cheeb tsam, thiab yog li ntawv ib daim ntawv muaj 80 GSM yuav yog 80 grams, thaum lwm daim ntawv A0 muaj 100 GSM yuav yog 100 g hauv qhov hnyav.
Hauv chaw ua haujlwm, 70-80 GSM yog tus qauv hnyav ntawm daim ntawv uas tau siv ntau lub ntiaj teb, txawm tias cov ntawv hnyav dua muaj 100 lossis ntau dua GSM yog nyiam los ntawm qee tus neeg rau kev sib txuas lus. Qee tus accountants siv cov ntaub ntawv hnyav hnyav hnyav li ntawm 90gsm txog 120gsm. Cov no yog siv rau kev sau ntawv. Feem ntau, ib daim ntawv uas muaj ntau tshaj 160 GSM yog suav tias yog daim npav tuab. Cov ntaub ntawv faib tawm muaj GSM ntawm 180 thiab 200. Cov ntawv xov xwm yuav tsum tau teeb kom ntau li ntau tau, thiab yog li, lawv feem ntau muaj GSM nyob ib ncig ntawm 45 thiab 50.
Dab tsi yog qhov txawv ntawm Daim Ntawv Loj thiab GSM (qhov hnyav)?
Definition of Paper Size and GSM:
• Daim ntawv loj qhia qhov ntev ntawm daim ntawv uas tib neeg siv rau ntau zaus.
• GSM lossis daim ntawv hnyav yog qhov hnyav ntawm cov ntawv sib txawv uas tib neeg siv. GSM yog hais txog grams ib square meter.
qauv:
• Daim ntawv loj tau raug tsim los ntawm ISO 216 thiab ISO 269.
• Daim ntawv hnyav lossis GSM yog tus qauv ISO 536.
Type:
• Thaum nws los txog rau daim ntawv loj, muaj peb series xws li A, B, thiab C (size C yog txhais los ntawm ISO 269).
• Tsis muaj ntau hom rau GSM.
Qhov ntau thiab qhov hnyav:
• Hauv cov ntawv loj, qhov ntau thiab tsawg ntawm 0 txog 10. Qhov ntawd yog, peb muaj qhov ntau thiab tsawg ntawm A0 txog A10, B0 txog B10, thiab C0 txog C10.
• B0 yog daim ntawv loj tshaj plaws thiab A10 yog daim ntawv me tshaj plaws.
• Daim ntawv hnyav tsis tuaj yeem muab qhov pib li qhov hnyav yog ntsuas hauv grams.
Examples:
• A0 txhais tau tias daim ntawv loj ntawm 1 square meter. Kom paub meej, nws yog 841 mm × 1189 mm los yog 33.1 nti × 46.8 nti.
• A0 daim ntawv loj uas muaj GSM ntawm 70 yuav hnyav 70g thiab ib qho nrog GSM ntawm 100 yuav muaj qhov hnyav ntawm 100g.
Yog li, raws li koj tuaj yeem pom, thaum koj paub cov ntawv loj koj xav tau, nrog rau GSM, koj txoj haujlwm yuav yooj yim dua. Yog tias koj paub GSM thiab daim ntawv loj, koj tuaj yeem mus rau lub tshuab luam ntawv thiab hais tias thaum koj xav tau ib yam dab tsi luam tawm. Qhov ntawd yuav ua rau lub tshuab luam ntawv coj koj hnyav dua thiab ua kom koj txoj haujlwm ua tiav zoo.
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