I: phfut tram l~ym~u dfulg dQng 19c
6 NllIEMD~G KHi TRONG KHi THAI BANG mrETBJ 00 TR\fCTIEP
(Banhanh kem theo Thong tuso 4Q./2015!IT-BTNMTngay4.7..tJuing ..8.nlim 2015 cooB(j trutrngB(j TainguyenvaMDi truong)
1. Quy dinh chung
, Phu luc nay quy dinh yeu cAuIcy thu~t co ban v~ quy trinh do cac thong s6 gom NOx (NO va N02) , S02, CO, O2trongkhithai bang thiet bi do tnrc tiep.
2. Yeu cAuIcythu,t dai vo; thi~t b] do trl}'Cti~p a) Yeu cAuIcy thu~t cua thi~t bi
Thi~t bi do nyc t!~p cac ch~t 0 nhi~m dang khi trongkhithai t6i thieu phai dap irng cac yeu cau ve d~c tinh Icy thu~t theo quy dinhtaiBang 4.
Bang 4: Yeu cAuIcy th~t d6i voi thi~tbi dotnrc ti~p
Stt Thon2s6 clo DQchinhxac DQ phan!!iii Thiri !!ian clap Un2 1. NO ±5% cua gilitri doc 1 ppm <30s
2. N02 ±5% cua gilitri doc 0,1 ppm <40s3. S02 ±5% cua giiltri doc 1 ppm <30s 3. S02 ±5% cua giiltri doc 1 ppm <30s 4. CO ±5% cua giiltri doc 1 ppm <40s 5. O2 ±0,3% toan dai do 0,1% <60s
Khuyen khich sir d\lOgcac thi~t bi do daduQ'cc~p chUngchi kiem dinh bOi mQttrong cac t6 chuc sau: Co quan Bao v~ moi truang My (US EPA), T6 chuc chUng nh~ Anh (MCERT), Co quan kiem dinh Icy thu~t Duc (TOY), CO quan Moi truang Han Qu6c (KECO) va Co quan Moi truang Nh~t Ban (MOE);
b) Kiem dinh va kiem tra thi~t bi
- Kiem dinh thi~t bi: thi~t bi phai dUQ'ckiSm dinh thea quy dinh ~i Thong tu s6 23/2013m-BKHCN ngay 26 thang 9 nam 2013 clla BQ truang BQKhoa hQCva Cong ngh~ quy dinh v~ do luang d6i v6i phuong ti~n do nhom 2. H6 so kiem dinh bao g6m: gi~y chUngnh~ kiBmdinh va tern kiBmdiM phai duQ'cluu va sin sang cung c~p khi co yeu cAuCllaco quan nha nuac co thAmquy~n;
- KiSm tra thi~t bi b~g khichuan ~i hi~n truang: truac khi do n6ng dQcac ch~t 0 nhi~m trong khi thai, cAnth\lChi~n kiBmtra thi~t bi b~g khi "khong" va
,.
chirng nh~ cua khi ehuAnduge Slr dung va slin sang eung e~p eho co quan co thfun quyen khi duoc yeu e~u;
_ Khi chuan duoc Slrdung tai hien tnrong phai con han Slr dung, bao dam de}ehinhxac t6i thieu la± 5% va phai diroc lien k~tchuan d~n me}ttrong cac t6 chirc sau: Vi~n Do IUOngVi~t Nam, Vi~n Tieu ehuAnva Kythuat qu6e gia My (NIST) ho~e cac Nha san x~t khi chuan dat tieu chuan ISOIIEC 17034. Khi ehuAnduoc Slrdung co th~Iakhi dan hoac khi h6n hop,
c) Ki~mtra,bootri, bao duongthi~tbi
Thi~tbi phai diroc kiem tra, thay th~ linhphu kien, bao tri, bao dirong dinh Icy va tnroc khi di quan trie hien tnrong thee quy dinh cua phap lu~t va huang d§n eua nha san xu~t. T~t ea tiii li~u lien quan d~n vi~e ki~m tra, thay th~ linh ph\l ki~n, bao tri, bao duang thi~t bi phai duge ghi chep, luu l~i ha sa va slin sang cung c~p eho ea quan co thAmquy~nkhi duge yeu e~u.
3. Vi tri do.
a) Vitrido m~u khi duge xae dinh cimg vOivitril~y m~u b\li thee phuang phap xae dinh quy dinh 4li Ph\ll\le 01 ban hanh kern thee Thong tu nay.
b) TruOng hgp chi th\le hi~n do cae eh~t 0 nhiSm d:,mgkhi rna khong l~y m~u b\li thi vi trido m~ukhi phai thoa man di~u ki~n: khong (J mi~ng 6ng khoi va uu tien ehQnnai co dong khi ehuy~n de}ng6n dinh.
4. Quy trioh do qaihi~otrtrirng a) Ki~m tra thi~t bi 4li hi~n truOng
- Ki~m tra d~u do: cit ea ~u do eua thi~t bi phai duge lam s~eh dUng huang d§n eua nha san xu~t, s~eh va kho rao truoe khi Slrd\lng;
- Ki~m tra pin;
- Khffi de}ngthi~t bi do.
b) Ki~m tra thi~t bi bkg khi ehuAn4li hi~n truOng
- Ki~m tra di~m "khong" (zero check): kiSm tra di~m "khong" duge th\le hi~n thee eh~ de}tvki~m tra di~m "khong" eua thi~t bi ho~e Slrd\lI1gkhi khong. K~t qua ki~m tra di~m khong phai nho han de}phan giai eua thi~t bi tuang Ung vOi timg thong s6. TruOng hgp k~t qua ki~m tra di~m khong Ian han de}phan giai eua thi~t bi, phai ti~n hanh ki~m tra l~p l~i eho d~nkhi d~t yeu c~u quy dinh. - Ki~m tra thi~t bi bkg khi chuAn(span check): ki~m tra 4li di~m nang de} khi ehuAntrong khoang til 10% d~n50% giatri eua toan dai do cua thi~t bi d6i vOicae thong s6 S02, NOx(NO va N02); d6i vOithong s6 CO, di~m nang de}khi chuAnSlrd\lI1gd~ ki~m tra duge xae dinh bkg ±50% so vOi gia tri quy dinh v~ nguang t6i da eho phep trong cac quy ehuAnk:Y thu~t qu6e gia v~ moi truOng tuang Ung. Ho~t de}ngdo khi thai chi duge th\lC hi~nkhi S\l sai khae giua k~t qua do khi ehuAnhi~nthi tren thi~t bi va nang de}khi ehuAnduge Slr d\lI1gd~
·.
kiem tra khong qua 20%. Tnrong hop S\I sai khac 16nhon 20%, phai ti~n hanh kiem tra I~plai bkg khi chuAncho d~n khi dat yeu c~u quy dinh.
c) Do dactai hi~n tnrong
- Sau khi khoi dQngthi~t bi do, dgi cho cac giatrihi~nthi duoc 6n dinh thi b~t d~u ti~nhanh dQCva ghi giatri do;
- Tai m6i vi tri quan tr~c phai thirc hien it nhftt 3 phep do (3 mau) trong 1 Ik quan tr~c;
- Thoi gian do t6i thieu cho 1 phep do (1 mau) la 15 phut voi tk suftt doc va ghigiatrido lien tuc la 3 phut/l giatri,