Hydroxyethyl methylcellulose (HEMC) i polymer inoshandiswa zvakanyanya mumaindasitiri akasiyana, kusanganisira mishonga, chikafu, zvizorwa, uye kuvaka. Iyo inokosheswa nekukora kwayo, emulsifying, kugadzira firimu, uye kudzikamisa zvivakwa. Pasinei nekushandiswa kwayo kwakawanda, kuve nechokwadi chekuchengetedza panguva yekubata kwayo uye kushandiswa kwakakosha. Heano maitiro akakwana ekuchengetedza ekushandisa hydroxyethyl methylcellulose:
1. Kunzwisisa Mashoko
HEMC isiri-ionic cellulose ether, yakabva kune cellulose uko mapoka ehydroxyl akatsiviwa nemapoka ehydroxyethyl nemethyl. Iyi shanduko inovandudza kunyungudika kwayo uye kushanda kwayo. Kuziva makemikari ayo uye maitiro emuviri, akadai solubility, viscosity, uye kugadzikana, kunobatsira pakuibata zvisina njodzi.
2. Zvishandiso Zvekuzvidzivirira Pamunhu (PPE)
Magirovhosi uye Zvipfeko zvekudzivirira:
Pfeka magirovhosi asingaurayiwi nemakemikari kudzivirira kusangana kweganda.
Shandisa zvipfeko zvinodzivirira, kusanganisira hembe dzine maoko marefu uye bhurugwa, kudzivirira kubuda kweganda.
Kudzivirira Kweziso:
Shandisa magirazi ekuchengetedza kana zvivharo zvechiso kudzivirira kubva kuguruva kana kuputika.
Kudzivirirwa Pakufema:
Kana uchibata HEMC mufomu yehupfu, shandisa masks eguruva kana zvinofema kuti udzivise inhalation yezvikamu zvakanaka.
3. Kubata uye Kuchengeta
Kufefetedza
Ita shuwa kufefetera kwakakwana munzvimbo yekushanda kuderedza kuunganidzwa kweguruva.
Shandisa exhaust ventilation yemunharaunda kana zvimwe zvigadziriso zveinjiniya kuchengetedza mwero wemhepo uri pazasi pezvinokurudzirwa kuratidzwa.
Kuchengeta:
Chengetedza HEMC munzvimbo inotonhorera, yakaoma kure nehunyoro uye zuva rakananga.
Chengetedza midziyo yakavharwa zvakasimba kudzivirira kusvibiswa uye kunwa hunyoro.
Chengetedza kure nezvinhu zvisingaenderani senge maoxidizer akasimba.
Kubata Chengetedzo:
Dzivisa kugadzira huruva; bata zvinyoronyoro.
Shandisa maitiro akakodzera sekunyorova kana kushandisa muunganidzi weguruva kuderedza zvidimbu zvinofambiswa nemhepo.
Shandisa maitiro akanaka ekuchengetedza imba kudzivirira kuungana kweguruva pamusoro penzvimbo.
4. Kuteuka uye Kubvinza Matanho
Zvishoma Zvishoma:
Tsvaira kana kutsvaira zvinhu zvacho wozviisa mumudziyo wokurasa wakafanira.
Dzivisa kutsvaira kwakaoma kudzivirira kupararira kweguruva; shandisa nzira dzakanyorova kana HEPA-yakasefa vacuum cleaners.
Zvikuru Zvikuru:
Bvisa nzvimbo uye ventilate.
Pfeka PPE yakakodzera uye iine spill kudzivirira kuti isapararire.
Shandisa zvinhu zvine inert sejecha kana vermiculite kutora chinhu.
Rasa zvinhu zvakaunganidzwa maererano nemitemo yemunharaunda.
5. Exposure Controls uye Hutsanana hweMunhu
Exposure Limits:
Tevedzera iyo Occupational Safety and Health Administration (OSHA) nhungamiro kana mirau yakakodzera yemunharaunda maererano nemiganhu yekufumurwa.
Hutsanana Pamunhu
Geza maoko zvakakwana mushure mekubata HEMC, kunyanya usati wadya, kunwa, kana kuputa.
Dzivisa kubata kumeso kwako nemagirovhosi kana maoko ane utachiona.
6. Njodzi dzehutano uye Matanho ekutanga Aid
Inhalation:
Kugara kwenguva refu kune HEMC guruva kunogona kukonzera kutsamwa kwekufema.
Endesa munhu abatwa nemweya mutsva uye tsvaga kurapwa kana zviratidzo zvikaramba zviripo.
Skin Contact:
Geza nzvimbo yakakanganiswa nesipo nemvura.
Tsvaka mazano ekurapa kana kushatirwa kukatanga.
Kubata Nemaziso:
Shamba maziso zvakakwana nemvura kwemaminetsi gumi nemashanu.
Bvisa macontact lens kana aripo uye ari nyore kuita.
Enda kuchipatara kana kushatirwa kukaramba kuchiitika.
Kudya:
Shamba mukanwa nemvura.
Usaite kurutsa kunze kwekunge warairwa nevanorapa.
Tsvaka rubatsiro rwechiremba kana yakawanda yakamwiwa.
7. Moto uye Kuputika Njodzi
HEMC haibatike zvakanyanya asi inogona kupisa kana yaiswa pamoto.
Matanho ekudzima moto:
Shandisa pfapfaidzo yemvura, furo, kemikari yakaoma, kana carbon dioxide kudzima moto.
Pfeka magiya ekudzivirira akazara, kusanganisira anozvimiririra ekufema (SCBA), paunenge uchirwisa moto unosanganisira HEMC.
Dzivisa kushandisa nzizi dzemvura dzakakwirira, dzinogona kuparadzira moto.
8. Kuchengetedza kwezvakatipoteredza
Dzivisa Kuburitswa Kwezvakatipoteredza:
Dzivirira kusunungurwa kweHEMC munharaunda, kunyanya mumiviri yemvura, sezvo inogona kukanganisa hupenyu hwemvura.
Kurasa:
Rasa HEMC maererano nenharaunda, nyika, uye federal mitemo.
Usabudise mumvura pasina kurapwa kwakakodzera.
9. Regulatory Information
Labeling uye Classification:
Ita shuwa kuti HEMC midziyo yakanyorwa nemazvo zvinoenderana nemaitiro ekutonga.
Zvijaire neSafety Data Sheet (SDS) uye tevedzera nhungamiro dzayo.
Zvekufambisa:
Tevedzera mirairo yekutakura HEMC, kuve nechokwadi chekuti midziyo yakavharwa uye yakachengetedzwa.
10. Kudzidziswa uye Dzidzo
Kudzidziswa kwevashandi:
Ipa dzidziso pamusoro pekubata kwakakodzera, kuchengetedza, uye kuraswa kweHEMC.
Ita shuwa kuti vashandi vanoziva nezvenjodzi dzinogona kuitika uye nedziviriro dzinodiwa.
Emergency Procedures:
Gadzira uye taura maitiro echimbichimbi ekuteuka, kubuda, uye kufumurwa.
Ita zvibooreso zvenguva dzose kuti uve nechokwadi chekugadzirira.
11. Product-specific Precautions
Kugadzira-chaiyo Ngozi:
Zvichienderana nekugadzirwa uye kusungirirwa kweHEMC, zvimwe zvidziviriro zvingave zvakakosha.
Ongorora zvigadzirwa-zvakananga nhungamiro uye kurudziro yemugadziri.
Mashandisirwo-akananga Mazano:
Mumishonga, ona kuti HEMC ndeyegiredhi rakakodzera rekupinza kana jekiseni.
Mukuvaka, ziva guruva rinogadzirwa panguva yekusanganisa uye kushandisa.
Nekuomerera kune idzi dziviriro dzekuchengetedza, njodzi dzine chekuita nekushandiswa kwehydroxyethyl methylcellulose dzinogona kudzikiswa zvakanyanya. Kuve nechokwadi chekuti nzvimbo yekushanda yakachengeteka haingodziviriri vashandi chete asiwo inochengetedza kuvimbika kwechigadzirwa uye nharaunda yakapoteredza.
Nguva yekutumira: May-31-2024