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Author: herbivor

[MERGED] Occupational Safety & Health /NIOSH

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Post time 8-2-2010 12:07 AM | Show all posts
kena blajo math semula baru tak pening kot

aku pakai jenama tuffsafe (betol tak?) dia tulis situ SNR rating 29
auntie_girl Post at 7-2-2010 07:37 AM


tuff-safe?? pelik lak brand ni... aku survey website dosh takde plak list dalam kelulusan dosh
http://www.dosh.gov.my/Informasi ... p?cat=2&id=2006

ikutkan x kisah sangat kelulusan DOSH ni asalkan ppe tu ikut standard antarabangsa... SNR 29 tu ok kot....aku x pasti sebab kena refer to noise level kat tempat kerja....
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Post time 8-2-2010 12:10 AM | Show all posts
dewa,so between SNR ngan NRR, lebih elok jenis NRR ke?
auntie_girl Post at 7-2-2010 09:45 PM


ikutkan sama aje...NRR n SNR tu term berbeza yg diperkenalkan oleh 2 dunia yg nak soh org lain ikut standrad dia
US ngan standrad dia, UK/EU ngan standard dia.... so jadilah 2..
cuma kiraan dia berbeza, but make sure earplug tu leh reduced noise level

jgn pakai cam ayam sudaaaaa....huhuh
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Post time 8-2-2010 09:20 AM | Show all posts
1695# pressor  

posting press kena sorok dek hantu kopek
auntie_girl Post at 7-2-2010 21:43


erk...kenapa posting aku ilang..
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Post time 8-2-2010 09:29 AM | Show all posts
hmm...aku tak pasti plak ade kualitatif and kuantitatif... kalau kuantitatif tu camne?? brape banyak yg kita test??

ikutkan takde ler wajib..maybe sunat aje kot...hehe
but according to USECHH  ...
DewaGanaZ Post at 8-2-2010 00:04


hebatnya leh quote posting hantu tuh....seremmm...

huhu... beb...wa maksudkan bukan nyer fit testing yang positive ngn negative pressure tuh...

wa maksudkan yang fit test nak kompem kan saiz respirator yang sesuai ngn kita...huhu...yg wa tahu kualitatif guna machine...kuantitatif guna serkup dlm kepala...tp wa taktau mcmane dia wat cmner...huhuhu

bro kalo SNR punya rate tuh mmg sama je ngn NNR =

maksudnya kalo tmpt kita bunyi bising 90db...pastu SNR dia 10db...or NNR dia 10db..

lalu bila disama dengankan menjadi 90-10 lah ek jd 80db bising yg masuk kat dlm telinga kita...

mcm tuh ek????
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Post time 8-2-2010 11:15 AM | Show all posts
hebatnya leh quote posting hantu tuh....seremmm...

huhu... beb...wa maksudkan bukan nyer fit testing yang positive ngn negative pressure tuh...

wa maksudkan yang fit test nak kompem ka ...
pressor Post at 8-2-2010 09:29 AM



pressor, wa pon tarak tau itu jenis test,,,,kalau lu tau leh gtau....aku pon nak belaja jugak...

SNR and NRR tu lain calculation dia..... SNR aku tak sure sngat pasal dia ade HML (hi medium low rating)
utk NRR , kena tolak 7 la bro..refer posting aku #1685
Pasal weighting NRR ni dalam C (dBC) so kena tolak 7 sebagai correction factor (actually real calculation dia complex sikit..kena buat correlation between weighting A and C) last2 dapat 7
contoh ear plug dengan 20 db (C) NRR
bunyi kawasan sekitar yg diukur = 90dB(A)
so bunyi yg masuk kat ear plug ke telinga = 90 -(NRR-7)
so, 90-(20-7)=90-13=77dB
so maknanya earplug tu dapat sekat sebanyak 13db(A) noise and bunyi yg sampai ke gegendang telinga adalah 77dB(A)


so kalau NRR= 10 so actual noise , 90 - (10-7) = 87dB(A) bukan 80 tau.... basically ear plug NRR dia 20dB...yg 10 db tu baik xyah beli...hehe

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Post time 8-2-2010 11:36 AM | Show all posts
pressor, wa pon tarak tau itu jenis test,,,,kalau lu tau leh gtau....aku pon nak belaja jugak...

SNR and NRR tu lain calculation dia..... SNR aku tak sure sngat pasal dia ade HML (hi medium l ...
DewaGanaZ Post at 8-2-2010 11:15


wa pun tarak tau....yang wa tau mende fit testing tuh kena buat...ade cert...ada validity dia...so nanti dlm cert tuh adalah saiz apa yang sesuai ngn ko pakai utk respirator...pastuh kalo wat yang kualitatif nye fit test ada guna serkup dlm kepala..macam nih wa search kat tenet jah...pastuh dia sembur satu alat kat dlm tuh..mcm makcik tuh buat...cecair tuh busuk...pastu dia suh geleng2 kepala...goyang2 kepala...menari2( nih wa menambah jer)..so kalo lu tak bau cecair maksudnya fit lah ngn u punya muka respirator itu - beb nih wa baca kat tenet jer..taktau lah wa salah paham ke apa...huhu..satu lagi test nih utk respirator ngn mask..sama jer...




pastuh yang ear plug tuh...contoh je lah laha...huhu....beb...tmpt wa nak buat initial noise monitoring...kalo lu nak buat leh bg quotation

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Post time 8-2-2010 12:19 PM | Show all posts
aku boleh buat,,,,tapi tak competent ..hehehe

kalau ko kat jb ni boleh la wa kautim...hehehe
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Post time 8-2-2010 04:26 PM | Show all posts
aku boleh buat,,,,tapi tak competent ..hehehe

kalau ko kat jb ni boleh la wa kautim...hehehe
DewaGanaZ Post at 8-2-2010 12:19


oh tak kompeten...

nehi hey,.....
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Post time 8-2-2010 04:31 PM | Show all posts
ye la..aku ni nyibuk aje...tak kompeten plak tuh
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Post time 8-2-2010 08:48 PM | Show all posts
ganaz la ko dewa..salute !!!
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Post time 8-2-2010 08:49 PM | Show all posts
press, apsal xbagi supplier je buat fit tsting tuh??
wa dulu company supplier arrangekan fit testing
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Post time 8-2-2010 11:11 PM | Show all posts
aku rasa press ni supplier kot..
ye la..aku pon suspect ni kerja supplier pasal depa yg ade the right technology...aku dulu company aku masa beli repisrator 3M, 3M ada kasi short course n fit test..tapi yg masuk dalam hood pastu spray bau busuk tu takde la plak////

ade ke kat mesia buat?? nak gak aku belaja
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Post time 9-2-2010 06:53 AM | Show all posts
press, apsal xbagi supplier je buat fit tsting tuh??
wa dulu company supplier arrangekan fit testing
decent_sho Post at 8-2-2010 20:49


supplier kedai hardware kecik2 tuh...nak wat cmner nya..tye pun tak tau apa2...
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Post time 9-2-2010 06:54 AM | Show all posts
aku rasa press ni supplier kot..
ye la..aku pon suspect ni kerja supplier pasal depa yg ade the right technology...aku dulu company aku masa beli repisrator 3M, 3M ada kasi short course n fit test..t ...
DewaGanaZ Post at 8-2-2010 23:11

hahah...supplier apa beb??..pompuan kah??..wakakakaka....
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Post time 9-2-2010 07:35 AM | Show all posts
hahah...supplier apa beb??..pompuan kah??..wakakakaka....
pressor Post at 9-2-2010 06:54 AM



ade ke stok?? huhuhuh
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Post time 9-2-2010 08:54 AM | Show all posts
hari ni takde citer baru ke??

semalam aku baru tengok sampling pump baru beli....siap dengan dry calibrator lagi...

senang la sikit nak calibrate flowrate pump lepas ni...
sape pernah calibrate pump pakai wet calibrator??
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Post time 9-2-2010 11:56 AM | Show all posts
hari ni takde citer baru ke??

semalam aku baru tengok sampling pump baru beli....siap dengan dry calibrator lagi...

senang la sikit nak calibrate flowrate pump lepas ni...
sape pernah calibrate ...
DewaGanaZ Post at 9-2-2010 08:54


flowrate air ek...

wa dulu koboi giler....tkde lah guna prop nih..ehehe..amek satu bekas 1liter....pastu amek stop watch..kira lah berapa satu liter air penuh dalam second...ekekekek...kelako kan...huhuhu...aci tak??

tp kalo velocity wa guna alat ah..tk reti nak guna koboi method...ekeke

save bajet...ekekee...kira pressure lagik best...kiteorg design U-tube sendirik..eekekek
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Post time 9-2-2010 11:57 AM | Show all posts
ade ke stok?? huhuhuh
DewaGanaZ Post at 9-2-2010 07:35


ko mintak ngn gerl
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Post time 9-2-2010 12:23 PM | Show all posts
flowrate air ek...

wa dulu koboi giler....tkde lah guna prop nih..ehehe..amek satu bekas 1liter....pastu amek stop watch..kira lah berapa satu liter air penuh dalam second...ekekekek...kelako k ...
pressor Post at 9-2-2010 11:56 AM


kalau liquid bleh la...ni air flow...udara bukan ayaq...hehehe

tingat aku pergi offshore dulu...ade leaking kat valve....boss tanyer budak operator tu leaking teruk ke, dia jawab, 1 titis seminit.... giler ahhh...nak kire tak teknikal ke...huhhu

kalau flow rate sampling pump ni memang lu kena pakai calibrator...beza dia ade 2 jenis wet n dry....kalau wet tu kena ade skill nak guna
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Post time 9-2-2010 03:22 PM | Show all posts
kalau liquid bleh la...ni air flow...udara bukan ayaq...hehehe

tingat aku pergi offshore dulu...ade leaking kat valve....boss tanyer budak operator tu leaking teruk ke, dia jawab, 1 titis semin ...
DewaGanaZ Post at 9-2-2010 12:23


oh...air ingat air(ayer)...ehehe

aku tau satu alat jer...

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