在(zai)選購石(shi)(shi)材(cai)時，我們(men)(men)通常會聽到“ A料(liao)B料(liao)C料(liao)"，一些人對石(shi)(shi)材(cai)的(de)(de)(de)輻射性(xing)進行(xing)解釋，實際上(shang)這(zhe)是(shi)(shi)(shi)(shi)(shi)不(bu)準確(que)的(de)(de)(de)，市場(chang)上(shang)使(shi)用的(de)(de)(de)飾面(mian)(mian)石(shi)(shi)材(cai)并不(bu)有(you)(you)(you)輻射，石(shi)(shi)材(cai)業內的(de)(de)(de)“ A料(liao)，B料(liao)，C料(liao)"所指的(de)(de)(de)是(shi)(shi)(shi)(shi)(shi)石(shi)(shi)材(cai)的(de)(de)(de)質(zhi)(zhi)量(liang)(liang)，而不(bu)是(shi)(shi)(shi)(shi)(shi)輻射。 讓我們(men)(men)以芝(zhi)麻(ma)(ma)灰(hui)為例(li)。芝(zhi)麻(ma)(ma)燒(shao)灰(hui)板(ban)(ban)(ban)(ban)是(shi)(shi)(shi)(shi)(shi)一種非(fei)常普通的(de)(de)(de)飾面(mian)(mian)石(shi)(shi)材(cai)，在(zai)行(xing)業中我們(men)(men)根據成品(pin)表(biao)(biao)(biao)面(mian)(mian)是(shi)(shi)(shi)(shi)(shi)否(fou)有(you)(you)(you)色(se)(se)差，是(shi)(shi)(shi)(shi)(shi)否(fou)有(you)(you)(you)黑點，是(shi)(shi)(shi)(shi)(shi)否(fou)有(you)(you)(you)石(shi)(shi)材(cai)線(xian)(xian)條，是(shi)(shi)(shi)(shi)(shi)否(fou)有(you)(you)(you)瑕疵(ci)等等，它(ta)們(men)(men)是(shi)(shi)(shi)(shi)(shi)分(fen)為ABC三類。其(qi)(qi)中，A是(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)，C是(shi)(shi)(shi)(shi)(shi)壞的(de)(de)(de)，也(ye)有(you)(you)(you)一些地(di)方會出(chu)現(xian)更(geng)詳(xiang)細的(de)(de)(de)分(fen)類，例(li)如ABCDE，字母(mu)越來(lai)越差。   芝(zhi)麻(ma)(ma)灰(hui)石(shi)(shi)料(liao)，無(wu)(wu)論是(shi)(shi)(shi)(shi)(shi)A料(liao)還是(shi)(shi)(shi)(shi)(shi)C料(liao)，其(qi)(qi)質(zhi)(zhi)量(liang)(liang)均相同(tong)，表(biao)(biao)(biao)面(mian)(mian)無(wu)(wu)裂紋，燃(ran)燒(shao)板(ban)(ban)(ban)(ban)的(de)(de)(de)邊緣非(fei)常整齊，其(qi)(qi)A的(de)(de)(de)區(qu)別是(shi)(shi)(shi)(shi)(shi)顏色(se)(se)和(he)紋理。 A制料(liao)的(de)(de)(de)燃(ran)燒(shao)板(ban)(ban)(ban)(ban)沒(mei)(mei)有(you)(you)(you)色(se)(se)差，沒(mei)(mei)有(you)(you)(you)黑點，沒(mei)(mei)有(you)(you)(you)石(shi)(shi)線(xian)(xian)整體看上(shang)去很(hen)整齊，這(zhe)種價格(ge)的(de)(de)(de)燃(ran)燒(shao)板(ban)(ban)(ban)(ban)比較(jiao)昂(ang)貴通常會使(shi)干(gan)掛室(shi)內室(shi)外墻面(mian)(mian)。 芝(zhi)麻(ma)(ma)灰(hui)燃(ran)燒(shao)板(ban)(ban)(ban)(ban)的(de)(de)(de)B材(cai)料(liao)表(biao)(biao)(biao)面(mian)(mian)無(wu)(wu)明(ming)(ming)顯色(se)(se)差，無(wu)(wu)大(da)黑點，沒(mei)(mei)有(you)(you)(you)太(tai)明(ming)(ming)顯的(de)(de)(de)白色(se)(se)，青色(se)(se)石(shi)(shi)線(xian)(xian)，這(zhe)種燃(ran)燒(shao)板(ban)(ban)(ban)(ban)也(ye)屬于較(jiao)好的(de)(de)(de)質(zhi)(zhi)量(liang)(liang)，一般對工(gong)程(cheng)質(zhi)(zhi)量(liang)(liang)要求較(jiao)高的(de)(de)(de)工(gong)程(cheng)會選擇B型燃(ran)燒(shao)板(ban)(ban)(ban)(ban)鋪設地(di)面(mian)(mian)。 材(cai)料(liao)C的(de)(de)(de)板(ban)(ban)(ban)(ban)材(cai)表(biao)(biao)(biao)面(mian)(mian)可(ke)能(neng)有(you)(you)(you)色(se)(se)差，也(ye)可(ke)能(neng)有(you)(you)(you)黑點，石(shi)(shi)線(xian)(xian)等缺陷，但即使(shi)是(shi)(shi)(shi)(shi)(shi)C級也(ye)可(ke)以確(que)保沒(mei)(mei)有(you)(you)(you)裂紋，對表(biao)(biao)(biao)面(mian)(mian)沒(mei)(mei)有(you)(you)(you)損壞，從使(shi)用質(zhi)(zhi)量(liang)(liang)和(he)A相同(tong)，看起來(lai)不(bu)如AB類。這(zhe)種木(mu)板(ban)(ban)(ban)(ban)通常用于許多(duo)公(gong)園，人行(xing)道和(he)其(qi)(qi)他大(da)量(liang)(liang)工(gong)程(cheng)中。