000級大理石方尺又名(ming)大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)方(fang)尺(chi)(chi)具有(you)垂直平(ping)行的(de)(de)框式組合(he)用(yong)(yong)于(yu)(yu)對直角的(de)(de)檢驗,適用(yong)(yong)于(yu)(yu)高(gao)精(jing)度(du)(du)機械(xie)和(he)儀(yi)器檢驗及(ji)機床(chuang)之(zhi)間不垂直度(du)(du)的(de)(de)檢查(cha)。大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)方(fang)尺(chi)(chi)是使用(yong)(yong)大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)加(jia)工(gong)而成，大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)是重結晶的(de)(de)石(shi)(shi)(shi)灰(hui)巖(yan)(yan)，主(zhu)要成分(fen)是CaCO3。石(shi)(shi)(shi)灰(hui)巖(yan)(yan)在高(gao)溫高(gao)壓下變(bian)(bian)(bian)(bian)軟，并在所含礦(kuang)物質(zhi)(zhi)(zhi)發生(sheng)變(bian)(bian)(bian)(bian)化時重新結晶形(xing)(xing)成大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)。大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)是地(di)殼中(zhong)原有(you)的(de)(de)巖(yan)(yan)石(shi)(shi)(shi)經(jing)過(guo)(guo)地(di)殼內高(gao)溫高(gao)壓作用(yong)(yong)形(xing)(xing)成的(de)(de)變(bian)(bian)(bian)(bian)質(zhi)(zhi)(zhi)巖(yan)(yan)。地(di)殼的(de)(de)內力(li)作用(yong)(yong)促使原來的(de)(de)各類巖(yan)(yan)石(shi)(shi)(shi)發生(sheng)質(zhi)(zhi)(zhi)的(de)(de)變(bian)(bian)(bian)(bian)化，即(ji)原來巖(yan)(yan)石(shi)(shi)(shi)的(de)(de)結構、構造(zao)和(he)礦(kuang)物成分(fen)發生(sheng)改又名(ming)變(bian)(bian)(bian)(bian)；經(jing)過(guo)(guo)質(zhi)(zhi)(zhi)變(bian)(bian)(bian)(bian)形(xing)(xing)成的(de)(de)新的(de)(de)巖(yan)(yan)石(shi)(shi)(shi)稱為變(bian)(bian)(bian)(bian)質(zhi)(zhi)(zhi)巖(yan)(yan)；大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)主(zhu)要由方(fang)解石(shi)(shi)(shi)、石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)、蛇紋石(shi)(shi)(shi)和(he)白云石(shi)(shi)(shi)組成。其主(zhu)要成分(fen)以碳酸(suan)鈣為主(zhu)，約占50%以上(shang)；由于(yu)(yu)大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)一般都含有(you)雜質(zhi)(zhi)(zhi)，而且(qie)碳酸(suan)鈣在大(da)(da)(da)(da)氣(qi)中(zhong)受(shou)二氧化碳、碳化物、水氣(qi)的(de)(de)作用(yong)(yong)，也容易風化和(he)溶蝕，而使表面很快失去光澤。大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)主(zhu)要用(yong)(yong)于(yu)(yu)加(jia)工(gong)成各種形(xing)(xing)材(cai)、板材(cai)等；所以大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)方(fang)尺(chi)(chi)具有(you)不變(bian)(bian)(bian)(bian)形(xing)(xing) 硬(ying)度(du)(du)高(gao) 耐(nai)研磨性強、抗(kang)磨蝕、耐(nai)高(gao)溫等特點；大(da)(da)(da)(da)理(li)(li)(li)石(shi)(shi)(shi)方(fang)尺(chi)(chi)的(de)(de)平(ping)面精(jing)度(du)(du)、垂直度(du)(du)標準為GB6092-85。

我國《_石材一(yi)致編(bian)號》_規(gui)范，指1998年3月由_建材局出產和諧司(si)在福建泉(quan)州掌管召開了審查會(hui)，會(hui)議代表一(yi)致意見(jian)通過了該規(gui)范。

_石材(cai)（花崗石、大理石）是一(yi)種_的點綴資料，跟著(zhu)我(wo)國(guo)改(gai)革開放，石材(cai)工(gong)業迅(xun)速發展，由曩(nang)昔的幾(ji)(ji)(ji)十(shi)個種類，已發展到幾(ji)(ji)(ji)百個種類，由曩(nang)昔做坊(fang)式的出產(chan)(chan)，已發展到幾(ji)(ji)(ji)百條(tiao)較進步的石材(cai)產(chan)(chan)物(wu)出產(chan)(chan)線，曩(nang)昔出產(chan)(chan)的產(chan)(chan)物(wu)多為(wei)國(guo)內運用，當今(jin)石材(cai)產(chan)(chan)物(wu)出口創匯在(zai)建材(cai)產(chan)(chan)物(wu)中占了很大比(bi)重。

000級大理石方尺規格：（非標(biao)規格需定做）