California tab tom hloov mus rau kev tswj nruj dua ntawm kev tsim cov pob zeb tsim tawm raws li cov neeg tswj hwm xav txog cov cai thaum muaj xwm txheej ceev tsom rau cov pob zeb uas muaj cov ntsiab lus crystalline silica siab. Cov lus pom zoo tau ua rau cov lus teb los ntawm cov koom haum kev lag luam thiab kev sib tham txuas ntxiv ntawm cov neeg tsim pob zeb txog seb cov cai yuav ua haujlwm li cas hauv kev xyaum.
Raws liPob zeb hloov tshiab, Cal/OSHA tau tshaj tawm cov kev cai lij choj thaum lub Cuaj Hlis 16, 2026. Raws li qhov kev pom zoo, kev tsim khoom, kev tsim khoom, thiab kev teeb tsa ua haujlwm uas muaj cov pob zeb uas muaj ntau tshaj 1% crystalline silica los ntawm qhov hnyav yuav ntsib kev txwv tsis pub pib 60 hnub tom qab kev saws me nyuam, raws li kev cai tshwj xeeb thiab kev hloov pauv.
Cov qauv no tseem hais txog cov ntaub ntawv uas twb muaj lawm hauv cov khoom muag. Qee cov khoom lag luam uas twb muaj lawm tuaj yeem tsim nyog rau kev tsim khoom raws li cov xwm txheej tau hais tseg, nrog rau lub sijhawm 180-hnub tom qab kev saws me nyuam los ua kom tiav cov haujlwm tso cai. Cov cai tseem tsis tau txais kev pom zoo zaum kawg thaum lub sijhawm tshaj tawm thawj zaug.
Tau qhov twg los: Pob zeb hloov tshiab - Cal/OSHA Muab Cov Cai Lij Choj ntawm Silica Ban
Qhov sib txawv ntawm engineered pob zeb thiab ntuj pob zeb teeb meem
Ib qho ntawm cov teeb meem tseem ceeb uas tau tshwm sim thaum lub sij hawm kev sib tham yog kev txhawj xeeb li cas cov neeg tswj xyuas txhais cov khoom siv los ntawm cov txheej txheem tau hais tseg.
Thaum lub Cuaj Hlis 30, Lub Tsev Haujlwm Ncua Pob Zeb (NSI) tau xa cov lus nug kom California Lub Chaw Haujlwm Saib Xyuas Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv Standards Board kom kho cov qauv no. Lub koom haum txhawb nqa kev tiv thaiv muaj zog tiv thaiv kev tiv thaiv silicosis tab sis sib cav hais tias cov lus kawg yuav tsum vam khom cov pov thawj tshawb fawb thiab qhia meej cov ntaub ntawv raws li kev cai.
NSI tshwj xeeb thov kom cov kev cai sib txawv ntawm cov pob zeb pob zeb thiab cov vaj huam sib luag los ntawm cov pob zeb ntuj, raug rho tawm haujlwm ceramic, thiab cov khoom plooj (porcelain). Nws kuj tau nug cov ntsiab lus uas tuaj yeem ua rau muaj kev tsis sib haum xeeb ntawm cov pob zeb ua haujlwm thiab cov pob zeb uas tshwm sim ib txwm muaj quartz.
Qhov sib txawv tseem ceeb ntawm cov khoom siv. Ntuj granite, engineered quartz nto, porcelain slabs, thiab lwm yam ntaub ntawv tsim muaj sib txawv compositions thiab ua cov yam ntxwv. Ib txoj cai txhais uas dav dhau tuaj yeem tsim kev tsis paub meej rau cov lag luam tuav ntau pawg khoom.
Rau cov neeg yuav khoom sib piv cov ntaub ntawv rau cov haujlwm tsim vaj tsev, qhov sib txawv kuj cuam tshuam rau cov khoom tshwj xeeb thiab kev npaj kho.[Ntuj granite khoom]thiab[natural marble khoom]muab cov ntsiab lus pib cuam tshuam rau kev ntsuam xyuas cov pob zeb ntuj, thaum tsim cov khoom siv kho kom zoo nkauj yog cov khoom sib cais.
NSI kuj tau nug txog lub hauv paus ntawm kev tshawb fawb rau kev npaj ua pob zeb ua haujlwm qib ntawm 3 micrograms ib lub cubic meter thiab ua rau muaj kev txhawj xeeb txog qee yam kev tiv thaiv ua pa. Cov no yog cov lus pom zoo xa los ntawm lub koom haum kev lag luam, tsis tau lees paub cov kev hloov pauv rau cov cai tau hais tseg.
Cov peev txheej: Pob zeb Ntiaj Teb - Lub Koom Haum Pob Zeb Ntuj Hais kom Cal/OSHA los kho kom zoo dua Cov Pob Zeb Pob Zeb Silica Standard; StoneNews.eu - Kev Pabcuam ntawm NSI cov lus pom zoo
Kev ua raws cai tuaj yeem cuam tshuam cov khoom muag thiab cov sijhawm ua haujlwm
Rau fabricators, cov lus nug tswv yim yog tam sim ntawd. Cov ntaub ntawv twg tseem tuaj yeem ua tiav? Cov ntaub ntawv dab tsi yuav qhia tau tias ua raws? Lub sijhawm ntau npaum li cas cov lag luam yuav tsum ua kom tiav cov kev txiav txim uas twb muaj lawm lossis nyob rau hauv daim ntawv cog lus?
Cov qauv tsim muaj qhov tseem ceeb ntawm cov ntaub ntawv cov ntaub ntawv. Cov tswv lag luam yuav xav tau cov ntaub ntawv qhia tias ib yam khoom muaj tsawg dua 1% crystalline silica los yog lwm yam ntog sab nraum lub ntsiab lus ntawm pob zeb dag. Yog tsis muaj ntaub ntawv txaus, cov lus thov yuav xav tau cov khoom siv los kho cov pob zeb uas muaj ntau tshaj 1% crystalline silica los ntawm qhov hnyav.
Qhov no ua rau muaj kev sib tw rau cov tuam txhab uas tuav ntau hom ntog lossis tau txais cov khoom siv los ntawm cov saw hlau sib txuas. Kev txheeb xyuas cov khoom kom raug thiab cov ntaub ntawv tshawb xyuas tau yooj yim tuaj yeem ua qhov tseem ceeb dua thaum npaj kev tsim, teeb tsa, thiab xa khoom.
Cov ntaub ntawv khoom lag luam kuj ua haujlwm rau kev lag luam cais. Thaum sib piv cov khoom siv kho kom zoo nkauj, cov neeg yuav khoom yuav tsum paub cov txiaj ntsig kev xeem twg siv rau cov khoom siv tiag tiag thiab cov txiaj ntsig twg yog cov lus qhia dav dav. Piv txwv li,[Nano-crystalized iav technical specifications]tuaj yeem pab cov neeg yuav khoom tshuaj xyuas cov ntaub ntawv pov thawj ntawm cov khoom siv iav-ceramic yam tsis muaj kev cuam tshuam nrog cov khoom siv quartz.
Lub sijhawm ntawm qhov project yog lwm qhov kev txhawj xeeb. Cov ntawv cog lus lag luam loj tuaj yeem koom nrog ntau theem kev tsim khoom, pab pawg sib koom ua ke, thiab xa cov lus cog tseg txuas ntxiv mus rau ntau lub hlis. Lub sijhawm hloov pauv uas tshwm sim txaus rau cov xaj me me yuav tsis haum txhua qhov haujlwm uas twb tau ua lawm.
Hauv nws qhov kev pab cuam ntawm California Stone Summit muaj nyob rau hauv Fresno thaum Lub Kaum Hli 8,Pob zeb ntiaj tebtau tshaj tawm tias cov neeg tsim khoom thiab cov neeg sawv cev hauv kev lag luam tau sib tham txog qhov nyuaj ntawm kev ua raws li cov cai hloov zuj zus. Daim ntawv tshaj tawm tau sau tseg txog kev txhawj xeeb txog lub sijhawm teem sijhawm, cov khoom lag luam uas twb muaj lawm, thiab kev kho cov ntawv cog lus loj.
Raws li tsab ntawv ceeb toom ntawd, qhov kev pom zoo tsis tau tshwm sim hauv Pawg Thawj Saib Xyuas Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv Cov Txheej Txheem rau lub hli. Cov neeg sawv cev ntawm kev lag luam tau cia siab tias qhov kev txiav txim siab tuaj yeem tshwm sim rau lub Kaum Ib Hlis lossis tom qab ntawd, txawm hais tias lub sijhawm kawg tseem tsis paub meej.
Tau qhov twg los: Pob zeb Ntiaj Teb - California Fabricators Cite Uphill Sib ntaus sib tua nrog Cal/OSHA raws li qhov kev sib tw loj tshaj plaws
Kev nyab xeeb ntawm cov neeg ua haujlwm tseem yog qhov teeb meem hauv qab
Kev sib cav txog kev tswj hwm yuav tsum tsis txhob cuam tshuam nws lub hom phiaj tseem ceeb: txo cov neeg ua haujlwm raug rau cov kab mob ua pa ua pa, uas tuaj yeem ua rau silicosis thaum nqus tau dhau sijhawm.
Txiav, sib tsoo, thiab lwm yam txheej txheem fabrication tuaj yeem tso cov plua plav zoo hauv huab cua. Kev tiv thaiv plua plav zoo, kev tiv thaiv ua pa tsim nyog, kev ntsuam xyuas raug, thiab cov txheej txheem ua haujlwm zoo ib yam tseem yog qhov tseem ceeb ntawm kev tswj cov kev pheej hmoo.
Pob zeb hloov tshiabkuj tau tshaj tawm tias International Surface Fabricators Association (ISFA) tau npaj los tawm tswv yim rau lwm txoj haujlwm kev tso cai hauv khw es tsis yog kev txwv ncaj qha. Qhov no qhia txog kev sib tham txog kev lag luam dav dav txog seb puas muaj kev saib xyuas zoo dua thiab kev tswj hwm hauv chaw ua haujlwm tuaj yeem tiv thaiv cov neeg ua haujlwm thaum tso cai rau cov lag luam tsim nyog txuas ntxiv mus.
Cov txiaj ntsig tseem yog cov lus nug txog kev tswj hwm. Cov kev ntsuas uas tau hais tseg yuav tsum tsis txhob raug kho raws li qhov yuav tsum tau ua zaum kawg kom txog thaum cov tub ceev xwm ua tiav cov txheej txheem tswj hwm.
Dab tsi thoob ntiaj teb pob zeb cov neeg muag khoom thiab cov neeg yuav khoom yuav tsum saib
Rau cov neeg muag khoom thiab cov neeg yuav khoom txawv teb chaws, California cov lus pom zoo yog ib qho kev ceeb toom tias kev xaiv cov khoom muaj ntau dua li qhov zoo li, tus nqi, thiab kev ua haujlwm zoo. Cov khoom muaj pes tsawg leeg, npaj siv, ua cov kev cai, thiab cov kev cai ntawm kev lag luam tuaj yeem cuam tshuam rau kev txiav txim siab yuav khoom.
Cov lag luam nrhiav cov chaw tsim khoom lag luam rau Asmeskas kev lag luam yuav tsum tau saib xyuas cov ntawv tswj hwm zaum kawg, lees paub qhov muaj pes tsawg leeg ntawm cov khoom lawv yuav, thiab khaws cov ntaub ntawv tseem ceeb. Fabricators thiab cov neeg ua haujlwm cog lus yuav tsum tau tshuaj xyuas seb cov kev cai tshiab yuav cuam tshuam li cas rau cov khoom lag luam thiab cov khoom xa tuaj.
Ntuj pob zeb thiab cov chaw tsim khoom yuav tsum tsis txhob raug kho raws li kev sib hloov ntawm pawg hauv kev sib tham txog kev tswj hwm. Lawv qhov sib txawv yuav tsum tau xav txog hauv cov lus piav qhia ntawm cov khoom, cov ntaub ntawv txhawb nqa, thiab kev kuaj xyuas ua raws.
Rau cov haujlwm uas tsim cov khoom siv kho kom zoo nkauj tau txiav txim siab, cov neeg yuav khoom tuaj yeem tshuaj xyuas[nano-crystalized iav khoom]. Cov qeb suav nrog cov khoom tsim rau kev siv sab hauv sib txawv, xws li[nano iav chav ua noj countertops]thiab[nano iav sab hauv phab ntsa vuas]. Cov kev sib txuas no yog tsim los pab cov neeg yuav khoom nkag siab txog cov khoom ntawm cov khoom lag luam, tsis yog hais tias nws raug them los yog raug zam los ntawm ib txoj cai hauv California.
Cov ntaub ntawv pov thawj technical yuav tsum tau txiav txim siab nrog rau cov tsos thiab cov kev xav tau ntawm daim ntawv thov. SHENGSHI KAIDA's kuaj Nano Dawb cov ntaub ntawv, piv txwv li, kaw dej nqus ntawm 0.02% thiab flexural zog ntawm 63.1 MPa nyob rau hauv tsab ntawv ceeb toom los ntawm Tuam Tshoj National Quality Supervision and Testing Center for Stone Products (Guangdong). Cov nuj nqis no siv rau cov khoom siv Nano Dawb kuaj thiab yuav tsum tsis txhob raug ntaus nqi rau txhua yam xim lossis kev tsim.
Cov neeg yuav khoom uas xav tau los ntsuas cov khoom no tuaj yeem sab laj nrogNano Dawb cov ntaub ntawv xeem cov ntaub ntawvua ntej sib piv cov specifications rau ib qhov project. Qhov twg tus tsim hu rau ib qho kev ua tiav, qhov loj me, lossis cov ntaub ntawv nthuav dav, nplooj ntawv khoom thiab cov ntaub ntawv thev naus laus zis yuav tsum tau tshuaj xyuas ua ke.
California qhov kev txiav txim zaum kawg yuav txiav txim siab txog thaj tsam thiab lub sijhawm ntawm cov kev txwv tshiab. Txog thaum ntawd, txoj hauv kev ua tau zoo tshaj plaws rau kev lag luam yog ua raws li kev hloov kho tshiab, tswj cov ntaub ntawv cov khoom raug, thiab tsis txhob txiav txim siab yuav khoom raws li cov lus sau ib leeg.
Regulatory reference:California Department of Industrial Relations - Cal/OSHA Silica Rulemaking
Nplooj ntawv no yog ib qho kev tshaj tawm xov xwm hauv kev lag luam raws li cov lus ceeb toom tau tshaj tawm thiab tshaj tawm cov lus pom zoo rau pej xeem. Nws tsis yog kev cai lij choj. Cov neeg nyeem yuav tsum sab laj nrog cov kev cai lij choj thiab cov kws pab tswv yim tsim nyog rau kev txiav txim siab txog kev ua raws cai.
