Puas yog cov ntiv taw yuav tsum tau ntawm cov ntaiv?

Cov txheej txheem:

Puas yog cov ntiv taw yuav tsum tau ntawm cov ntaiv?
Puas yog cov ntiv taw yuav tsum tau ntawm cov ntaiv?
Anonim

tso dej tshem tawm hauv qab ntiv taw tau tso cai. Rau stairways ntau tshaj 44 ntiv tes (1.12 m) tab sis tsawg dua 88 ntiv tes (2.24 m) dav, ib lub stair rail lossis tes tuav ntawm txhua sab, thiab yog tias 88 ntiv tes los yog ntau dua, ib qho ntxiv nruab nrab ntawm tes.

Yuav tsum tau cov ntiv taw nyob qhov twg?

Piv txwv ntawm qhov twg OSHA qhia meej yuav tsum muaj cov ntiv taw suav nrog: Ntawm tus ntaiv txawb chaw lossis lub platform tshaj 10 feet, Nyob ib ncig ntawm lub qhov rooj hauv pem teb lossis lub platform (tshwj tsis yog ntawm qhov nkag), thiab. Txhua qhov chaw lawv xav tau los tiv thaiv cov neeg ua haujlwm los ntawm cov khoom poob.

Txhua tus ntaiv puas xav tau ib lub tes?

Handrails yog ib qho tseem ceeb ntawm kev ruaj ntseg ntaiv. … Txoj cai hauv tsev tsis yog hais txog tus lej ntawm "cov kauj ruam" tab sis nws yuav tsum muaj lub tes tuav thaum muaj ob lossis ntau dua "risers". Rau kev qhia meej, "riser" yog qhov ntsug ntawm tus ntaiv. Lub "tread" yog saum toj ntawm ib kauj ruam.

OSHA qhov siab npaum li cas yuav tsum muaj kev tiv thaiv?

Nyob rau hauv 1910.23(e)(1), OSHA hais tias ib tug guardrail yuav tsum muaj ib tug ntsug qhov siab ntawm 42 ntiv tes nominal los ntawm lub sab sauvnto ntawm sab saum toj rail mus rau pem teb, platform, runway, los yog ramp theem. "Nominal" tsuas yog txhais tau hais tias 42 ntiv tes tau tsim los ua tus qauv de facto rau qhov siab guardrail.

Ntawm qhov siab npaum li cas koj xav tau ntiv taw?

Ntoe boards yuav tsum muaj qhov siab tsawg kawg ntawm 150mm, txawm li cas los xij feem ntau ntawm cov raj thiab fitting scaffold qauvntiv taw boards yog 225mm scaffold boards.

Pom zoo:

Nthuav cov khoom
Alee nyob qhov twg?
Nyeem ntxiv

Alee nyob qhov twg?

Tam sim no, Ailee yog ua nws cov haujlwm dhau los ntawm ib tus txiv neej lub tuam txhab txij li tawm hauv YMC Entertainment. Nws tau ntsib cov kiv cua los ntawm ntau yam xwm txheej busking, guerrilla concerts, thiab social media. Ailee puas tseem nrov hauv Kauslim?

Vitamin c twg zoo dua los yog ascorbic acid?
Nyeem ntxiv

Vitamin c twg zoo dua los yog ascorbic acid?

Txoj kev tshawb fawb tsiaj tau pom Ester-C®kom nqus tau zoo dua thiab tso tawm tsawg dua li ascorbic acid thiab kom muaj kev ua haujlwm zoo tshaj plaws los tiv thaiv scorbutic (scurvy-tiv thaiv). Cov txiaj ntsig no tseem tsis tau rov ua dua rau tib neeg.

Puas yog boarish ib lo lus?
Nyeem ntxiv

Puas yog boarish ib lo lus?

adjective Swinish; siab phem; siab phem. Boarish yog dab tsi? boarish. / (ˈbɔːrɪʃ) / adjective . ntxhais, lim hiam, lossis sensual. Puas yog ascorbic lo lus? noun Biochemistry. dawb, crystalline, dej-soluble vitamin, C6H8O6, tshwm sim nyob rau hauv cov txiv hmab txiv ntoo citrus, zaub ntsuab, thiab lwm yam, thiab feem ntau tsim synthetically, qhov tseem ceeb rau cov metabolism hauv ib txwm: