TRANG - vietfood.org.vn · TCVN 11888:2017 ISO 712, Cereals and cereal products - Determination of moisture content - Routine reference method (NgDcac vacec san phfJm tc)ngOcae-Xac

TCVN TIEU CHuAN QUOC GIA

TCVN 11888:2017Xuat ban Ian 1

GAO TRANG.Milled rice

HANOI- 2017

LcYin6id§u

TCVN 11888:2017 thay thil TCVN 5644:2008 va TCVN 1643:2008;

TCVN 11888:2017 do Cue chil bien va Phat trilln thi tru'ang Nong san

bien soan, Bo Nong nghi$p va Phat trilln nong then d~ nghi, TOng cue

Tieu chuan £)0 lU'ang Chat 1U'Q'ngtharn dinh, Bo Khoa hoc va Cong ngh$

cong boo

TCVN 11888:2017

3

TIEU CHuAN QUOC GIA TCVN 11888:2017

G~o trangMilled rice

Tieu chuan nay ap dl,mgcho cac loai g~o trang thuoc leal Oryza sativa L.

Tieu chuan nay khong ap dl,mgcho g~o n~p (glutinous rice) va cac loai g~o thorn trang thuoc gi6n§ luathorn cua leal Oryza sativa L va cac san ph~m oU'Q'cch~ bi~n tu>g~o.

Cac tal lieu vien dan sau r~t can thiet cho viec ap dI,Jngtieu chuan nay. f)6i voi cac tai li$u vi$n dan ghi

narn cong b6 thl ap dI,Jngphien ban duoc neu. f)6i voi cac tal lieu vien dan khong ghi narn cong b6 thlap dI,Jngphien ban rnoi nhat, bao gem ca cac slfa o6i, b6 sung (neu co).

TCVN 5643:1999 Geo - Ttiuet ng[f va ajnh nghTa.

TCVN 7087:2013 (CODEX STAN 1-1985, with Amendment 2010) Ghi nhan thuc pham bao g6i san.

TCVN 7596:2007 (ISO 16050:2003) Tturc pham - Xac dinn aflatoxin B11 va ham lU'Q'ngtong so aflatoxin

B11 B21 G1 va G2 trang ngO cDc, cac lo~i h~t va cac san pham cua chung - PhU'ong phap sac kf longhi~u nang cao.

TCVN 7601.:2007Thl,l'c pham - Xac ajnh ham IU'Qngasen bang phU'(Jng phap b~c dietyldithiocacbamat.

TCVN 7.602:2007 Thvc ph am - Xac ajnh ham IU'Qng chi bang phU'ong phap quang pho h§p thl.lnguyen t&.

TCVN 7603:2007 Thvc pham - Xac ajnh ham IU'Q'ngcadimi bang phU'ong phap quang pho h§p thl.lnguyen tif.

TCVN 9027:2011 (ISO 24333:2009) NgO cDc va san pham ngO cDc - Lay mau.

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TCVN 11888:2017

ISO 712, Cereals and cereal products - Determination of moisture content - Routine reference method

(NgD cac va cec san phfJm tc) ngO cae - Xac ajnh at) fJm- PhlftYng phap eraichung thong dl,mg).

3 Thu~t ngCPva dinh nghia

Trong tieu chu~n nay SLr dl,Jng cac thuat ngCYva dlnh nghia neu trong TCVN 5643: 1999.

4 Phan h~ng

Gao tr~ng dU'Q'cphan thanh cac hanq chat 1U'Q'ngne·utrong Sang 2 va nhu' sau:

- 100 % loai A;

- 100 % leal S;

- 5 %; 10 %,15 %,20 % va 25 %.

5 Yeu e~uky thu~t

5.1 Cac chltieu cam quan cua g<;lotr~ng duoc quy djnh trong Bang 1.

Bang 1 - Yeu cAu cam quan

Ten chi tieu Yeu cAu

1. Mau s~c Mau tr~ng d~c trU'ng cho tCrng gi6ng

2. Mui, vi Mui d~c trunq cho tCrng gi6ng, khong co mui, vi I~

3. Con trung s6ng nhln th~y b~ng m~t thU'ong Khong dU'Q'cco

5.2 Cac chi tieu chat 1U'Q'ngcua g~o tr~ng duoc quy djnh trong Sang 2.

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TCVN 11888:2017

6 Yeu c~u 'v~ an toan thlJ'C pharn

6.1 PhI;! gia thl:l'C pham

SLi' dl,lng cac phu gia thuc pham theo quy djnh hien hanh [1][21.

.6.2 ThuOc bao v~ thuc ~t '

0/

Gao trang kh6ng dU'Q'cco du 1U'Q'ngthu6c bao v$ thuc vat earn sLi'dl,mg theo quy dinh hien hanh [3][41.

M(rc gi&i han t6i da du 1U'Q'ngthu6c bao v$ thuc vat cho phep co trong 9Cilotrang theo quy dinh hienhanh [51.

6.3 Kim loal n~ng

Ham 1U'Q'ng.t6i da kim leal n~ng trong 9Cilotrang dU'Q'cquy dinh trong Bang 3 [61.

Bang 3 - Ham 1U'Q'ngtOi da kim loal n~ng

Ten chi tieu MLPCtOi da

1. Ham 1U'Q'ngcadimi, mg/kg 0,4

2. Ham 1U'Q'ngasen, mg/kg 1,0

3. Ham 1U'Q'ngchi, mg/kg 0,2

6.4 DQc to vi nam

Ham 1U'Q'ngt6i da doc t6 vi narn trong 9Cilotrang dU'Q'cquy dinh trong Bang 4 [71.

Bang 4 - Ham 1U'Q'ngtOi da dQc to vi nam

Ten chi tieu MLPCtOi da

1, Ham 1U'Q'ngaflatoxin B1, IJg/kg 5

2, Ham 1U'Q'ngaflatoxin t6ng s6, IJg/kg 10

7 PhU'O'ng phap thw

7.1 Lay mau, theo TCVN 9027:2011 (ISO 24333:2009).

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TCVN 11888:2017

7.2 Chuan b] mau th(v

7.2.1 Thi~t b], dl.lng cu

7.2.1.1 Ol.lng cu chia mau, leal hlnh n6n hoac leal nhi~u ranh c6 h$ th6ng phan ph6i [tham khaoTCVN 9027:2011 (ISO 24333:2009)].

7.2.2 Cach ti~n hanh

TCrmau da lay theo 7.1, lay ra khoang 3 kg. Dung dl,mg Cl,I chia mau (7.2.1.1) lay 1,5 kg lam mau thLf

nghi$m, 1,5 kg con l<;iidung lam mau tuu. SLf dl,lng cac hop dl,mg ma~ c6 n~p d$y kin.

Tron ky mau thLf nghi$m dt§c6 dO d6ng d~u cao nhat. Sau d6 ti~n hanh lay mau nho hon, n~u can, dung

dl,lng cu chia rnau (7.2.1.1) dt§thu dU'Q'ccac phan mau thLf c6 kh6i 1U'Q'ngthlch hop (xem Phu luc A).

7.3 £)anh gia cam quan

Trong thai gian chuan b] mau, can luu y phat hien xem c6 rnui la hay rnut d~c biet hoac con trung s6ng

trong kh6i g<;30hay khong. Ghi chep lai tat ca cac nhan xet v~ mau s~c, mui, vj va s6 1U'Q'ngcon trungs6ng nhln thay b~ng m~t thU'cmg.

7.4 Xac djnh dQ am, theo ISO 712.

7.5 Xac djnh mlPc xat, theo Phl,l 11,IcB.

7.6 Xac djnh cac chi tieu chat 1U'c;>'ng,theo Phl,lll,lc C.

7.7 Xac djnh ham 1U'c;>'ngcadimi, theo TCVN 7603:2007.

7.8 Xac djnh ham 1U'c;>'ngasen, theo TCVN 7601 :2007.

7.9 Xac djnh ham 1U'c;>'ngchi, theo TCVN 7602:2007.

7.10 Xac dinh ham 1U'c;>'ngaflatoxin B1, theo TCVN 7596:2007 (ISO 16050:2003).

7.11 Xac djnh ham 1U'c;>'ngaflatoxin t6ng 56, theo TCVN 7596:2007 (ISO 16050:2003).

8 Sao bi, ghi nhan, bao quan va v~n chuyen

8.1 Bao bi

Bao bl dl,l'ng g<;3otr~ng phai dU'Q'c lam tCrv$t li$u phu hQ'p cho ml,lC dlch SLY dl,lng va khong c6 mui lam

anh hU'&ng d~n san ph~m. Bao bl phai kh6, s<;ich,nguyen v~n, b~n, bao dam an toan thl,l'c ph~m. G<;iO

tr~ng dU'Q'cd6ng trong bao bl v&i cac kh6i 1U'Q'ngthlch hQ'p.

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TCVN 11888:2017

8.2 Ghi nhan

8.2.1 Bao bi d~ ban Ie

Ngoai cac quy dinh trong TCVN 7087:2013 (CODEX STAN 1-1985, with Amendment 2010), can c6 cacthong tin sau day: 4

r.

- Ten san pharn phai duoc ghi ro "Gao tr~ng".

- Kh6i 1U'Q'ngtlnh.

- Ten va dja chi nha san xuat, d6ng g6i hoac ngU'CYiban Ie.

- Xuat Xli' hang h6a.

- Nh6m/loGii/h,;mg chat 1U'Q'ng.

- Ngay san xu~t hoac ngay d6ng g6i.

- HU'cYngdan bao quan,

8.2.2 Bao bi khong dung dt\ ban Ie

Thong tin d6i vot bao bl khong dung d~ ban Ie phai dU'Q'cghi tren bao bl hoac trong tal li$u kern theo,

viec nhan bi~t 10hang, ten va dja chi cua nha san xuat hoac ngU'CYid6ng g6i phai th~ hien tren bao bl.

Tuy nhlen, vi$c nhan bi~t 10hang, ten va dja chi cua nha san xuat hay ngU'CYid6ng g6i c6 th~ dU'Q'cthay

th~ bang d~u nhan bi~t r6 rang voi cac tal lieu kern theo.

8.3 Bao quan

Sao quan gGiOtr~ng trong kho (y dGing d6ng bao d~ tren bl,lc ke ho~c bao quan trong silo, khong baoquan & dGingdo rCYitren san kho.

Kho bao quan phai kin, tranh dU'Q'cSl,l'xam nh~p cua con trung va dong v~t gay hGii.Mai kho, san vatU'cyngkho dam bao ch6ng th~m, ch6ng ~m.

TrU'cYckhi chCra gGiO,kho phai dU'Q'cquet don, lam v$ sinh sGichS9; san, tU'cyngkho, bl,lc ke phai dU'Q'c

khLr trung bang cac IOGiih6a ch~t dU'Q'cphep SLrdl,lng theo quy djnh hi$n hanh.

Lo gGiOdU'Q'cx~p cach tU'cyngit nh~t la 0,5 m. Khoang cach giCPahai 10 it nh~t la 1 m d~ thu~n ti$n chovi$c di I~i ki~m tra, I~y mau va xli' IY.

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TCVN 11888:2017

Bao 9c;30xep thanh hing 16,moi 16kh6ng qua 300 tan. Trong moi 16,9c;30dU'Q'cxep theo cung hc;3ngchat

lU'c;mg,cung 10c;3ibao bl, kh6ng chat cao qua 15 lap. L6 9c;30dU'Q'cxep th~ng hang, vu6ng goc vai sankho d€! kh6ng b] d6.

Thuonq xuyen lam v$ sinh nha kho, v$ sinh cac 16hang, m6i tfU'cYngxung quanh kho; kh6ng d€!nuocdong xung quanh nha kho.

8.4 V~n chuy~n

PhU'O'ng tien van chuyen 9c;30trang phai dam bao duy trl duoc chat 1U'(;mgcua san pharn, Kh6ng vanchuyen 9c;30trang I~n vai cac hang hoa khac co th€! anh hU'ang den ch~t 1U'Q'ngcua 9c;30.

11

TCVN 11888:2017

Phv luc A(quy dinh)

Quy trinh phan tich g~o tring

Mau ban d~u

--- ......~ Xac dinh d¢ ~m

Mau chung --_........ Kil!m tra rnul va cOntrung

Phan mau thlr 3(200 g)

Phan mau thlr 2(3 x 50 g)

Phan mau thlr 1(500 g)

- TQP chat- Th6c Ian

12

Mau thlr nghi~m(0:: 1,5 kg)

Xac dinh rnuc xat

Hat nguyen ven

Xac dinhkfch thuoc hat

T~m T~m nho

Phan mau thlr 4(100g)

- Hat do- HQtSQC do- Hat xat dOi- Hat vang- Hat bac ph~n- Hat bi hU'hong- Hat xanh non- Hat g~o nep

TCVN 11888:2017

Phl;lll;lC B(quy dinh)

PhU'O'ngphap xac djnh mLPcxat

B.1 Nguyen tic

Khi ngam mau gGlOtrong h6n hop dung dich kali hydroxit va etanol, hat gGlOxat d6i S9c6 rnau nau sang

trong khi hat g<;loxat ky c6 rnau vang nhat, Dung kfnh lup d§ nhat ri€mg cac hat xat doi ra kh6i mau.

Can Clf vao tl I~ hat g<;loxat doi c6 tmng mau d§ suy ra muc xat cua gGlo.

B.2 Thu6c thw

B.2.1 Kali hydroxit, dGlngtinh th§, 10Glitinh khi€lt.

B.2.2 Etanol, 96 % (th§ tich).

B.2.3 Hem hop dung djch kali hydroxit va etanol

Dung 250 ml nuoc c~t d§ h6a tan 5 9 kali hydroxit (8.2.1) dl,mg trong blnh cau dung tfch 1 llt, cho750 ml etanol (8.2.2) vao binh cau va I~c kyo

B.3 Thi~t b], dl;lng cu

SLYdl:mg cac thi€lt bi, dl:mg Cl,J ph6ng thLYnghi~m thong thuonq va Cl,J th§ nhu sau:

B.3.1 Kinh lup, do ph6ng d<;li5 I~n d€ln 12 I~n.

B.3.2 Kep gclp hat,

B.3.3 HQp petri, dU'cmg kfnh 90 mm.

B.3.4 D'ia thuy tinh ho~c dia SlP,

B.3.5 Binh c~u, dung tfch 1 1ft.

B.3.6 Ong dong, dung tfch 100 ml ho~c 50 ml.

B.3.7 Gicly IQc.

B.3.8 Can, co do chfnh xac d€ln 0,01 g.

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TCVN 11888:2017

8.4 Cach ti~n hanh

TCYph~n m~u thLY2 (xem Phu luc A), I~y 3 m~u, mai m~u 50 g. Vai mai m~u, I~y ngau nhien 100 hat

gl;lo nguyen cho vao hop petri (B.3.3). R6t 20 ml han hop dung dlch kali hydroxit-etanol (B.2.3) vao hOp

petri cho ng~p hoan toan m~u. £)~y kfn va d~ yen trong 30 min. Gan be h~t dung dich va chuyen toan

b¢ g~o len gi~y lee (B.3.7), d~ trong 5 min cho kho tl,l' nhien. Hat g~o xat d6i (con cam) se c6 mau nau

sang, hat 9<;10 xat ky (chi con noi nhO) se c6 rnau vanq nhat.

SLYdl,mg kfnh lup (B.3.1) va dung kep (B.3.2) chon t~t ca cac hat c6 mau nau sang vai dien tfch Ian han

1/4 dien tfch b~ m~t cua hat hoac nhCrng hat c6 t6ng chieu dai cac soc nau sang Ian han hoac b~ng

chieu dai cua hat gl;lOva cho vao dia sCrho~c dia thuy tinh s~ch (B.3.4). Ti~n hanh d~m s6 hl;lt trong dia.

8.5 Tinh va bi~u thi k~t qua

Ti 1$ h~t g~o xat d5i c6 trong mau g~o 103 s6 hl;lt g~o xat d6i d~m dU'Q'c.L~y trung blnh cong cua ba k~t

qua phan tfch va lam tron s6 d~n hang dan vi. So sanh k~t qua thu dU'Q'cvai Bang B.1 d~ danh giamCrcxat cua g~o.

Bang B.1 - Danh gia m(vc xat clla g~o

M(Vc xat Ti I~ h~t g~o xat d6i, %, khong lOonhan

R~t ky 0

Ky 15

VLi'a phai 25

Blnh thU'<Yng 40

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TCVN 11888:2017

Phv luc C(quy djnh)

Phuonq phap xac djnh cac chi tieu chat 1U'Q'ng

C.1 Thi~t b], dlJng cu

Su dl,mg cac thi€!t b], dl,mg Cl,lphong thu nqhlern thong thU'cmg va cu th~ nhu sau:

C.1.1 May phan IO\li theo kich thU'cYc hat hoac sang tach t~m.

C.1.2 Sang kim loal, c6 10sang tron, dU'Crngkfnh 101,0 mm va 1,5 mm, c6 n~p d~y va day thu nhan,

C.1.3 Can, c6 do chfnh xac d€!n 0,01 g.

C.1.4 Micromet, hoac dl,lng cu do kfch thuoc hat khac khonq lam bien d~ng hat va c6 d¢ chfnh xacd€!n 0,01 mm.

C.1.5 Khay, hoac vat dunq khac, c6 mau tU'O'ngphan voi rnau cua g~o tr~ng thu nghi$m.

C.2 Cach ti~n hanh

C.2.1 Xac d!nh thee va tap ch~t Ian

C.2.1.1 Phep xac djnh

TLI' phan m~u thu 1 (xem Phu luc A), can 500 9 mau, chfnh xac d€!n 0,01 g, cho len sang (C.1.2) c6

dU'Crngkfnh 101,0 mm. L~c tron sang bang tay vai t6c d¢ tLl' 100 r/min d€!n 120 r/min trong 2 min, moi

phut d5i chieu mot I~n. Nh~t cac t~p ch~t vo cO' va hCfu cO' (1 phan tr~n sang gOp vai ph~n t~p ch~t nho

dU'ai day sang cho vao c6c thuy tinh kho s~ch, d§ bi€!t trU'ac kh6i 1U'Q'ng.Can toan b¢ kh6i 1U'Q'ngt~p

ch~t va c6c, chfnh xac d€!n 0,01 g, tLl' d6 suy ra kh6i 1U'Q'ngt~p ch~t, mi.

£)5 ph~n m~u con l<;Iitren sang (sau khi 10i;iibe ti;iP ch~t) ra khay (C.1.5), tien hanh nh~t va d€!m s6 h~tth6c I~n trong 9i;iOtr~ng.

C.2.1.2 Tinh k~t qua

C.2.1.2.1 Ti 1$t<;lPch~t, XI, tfnh bang ph~n tram kh6i 1U'Q'ng,theo cong thuc (C.1):

mXI =_I x100m (C.1)

15

TCVN 11888:2017

trong do

m, la t6ng kh6i 1U'Q'ngtap chat, tinh b~ng gam (g);

m la kh6i ILI'Q'ngph~n rnau thLr 1, tfnh b~ng gam (g).

C.2.1.2.2 Ti 1$thoc Ian dU'Q'etfnh b~ng s6 hat thoc co trong 1 kg g~o, nghTa la I~y s6 hat thee d€lmdLl'Q'e(C.2.1.1) nhan v&i 2.

C.2.2 Xac dinh hat nguyen, tam va tam nhe


TCr phan mau thLr 3 (xem Phu luc A), can 200 9 rnau, chinh xac d€ln 0,01 g. l.oai bo thoc va tap chat

(xem C.2.1.1), sau do dung sang (C.1.2) co dLl'ang klnh 16 1,5 mm d~ tach tarn man. Dung may phanleal theo kich thuoc hat (C.1.1) d~ tach riemg phan hat nguyen, ph~n t~m va phan t~m nho. N€lu khong

co may phan leal theo klch thuoc hat, co th~ SLrdunq sang tach tarn thich hop d~ tach so be>phan hat

nguyen va tarn, sau do dan d~u tLJ'ngphan tren khay (C.1.5) va nhat nhOng h~t g~o nguyen Ian trong

tam ho~c t~m Ian trong h~t nguyen, n€lu co. Phan rieng t~m nho theo kich thU'&c tU'O'ngLPng.

Can cac ph~n da phan rieng nhU' tren, ehinh xac d€ln 0,01 g.


a) Ti 1$h~t nguyen, X1, tinh b~ng ph~n tram kh6i ILl'Q'ng, theo cong thLPC(C.2):

(C.2)

trong do

m1 la kh6i ILI'Q'ngh~t nguyen, tinh b~ng gam (g);

f77 la kh6i 1U'Q'ngph!!!n mau thLr 3, tfnh b~ng gam (g).

b) Ti 1$t~m, X2, tfnh b~ng ph~n tram kh6i 1U'Q'ng,theo cong thLPC(C.3):

mX2 - _2 x 100 (C.3)m

trong do m2 la kh6i 1U'Q'ngt~m, tinh b~ng gam (g).

c) Tr 1$t~m nho, X3, tinh b~ng ph~n tram kh6i 1U'Q'ng,theo cong thLPC(C.4):

mX3 = _3 x100m (C.4)

trong d6 m3 la kh6i 1U'Q'ngt~m nho, tinh b~ng gam (g).

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C.2.3 Xac djnh kich thU'cYchat


Trong phan hat nguyen (xem C.2.2.1), I~y ng~u nhien 2 m~u, m6i m~u 100 hat g~o tr~ng nguyen ven.

Dung dl,lngCl,Ido kich thuoc (C.1.4) dll do chieu dai tCmg hat. Tinh gia tri chieu dai trung binh hat cuam6i m~u (L1 va L2)'


Chieu dai trung binh hat dU'Q'ctinh theo cong thuc (C.5):

(C.5)

N~u gia tr] L1 ~ L2 X 100 lon .hon 2 thi tra I~i toan bo s6 hat vao khay va ti~n hanh l:;ip lal theo C.2.3.1.

C.2.4 Xac djnh hat do, hat soc do, hat xat d6i, hat vang, hat bac phan, hat b] hll' hong, hat xanhnon, hat g~o n~p


Tu ph~n m~u thCr4 (xem Phu luc A), can 100 9 m~u, chinh xac d~n 0,01 g. l.oai bo th6c va t~p ch~t(xem C.2.1.1), sau d6 de toan bo g~o len khay men tr~ng, dan deu m~u va ti~n hanh phan lo~i h~t

b~ng cach nh:;itvao cac c6c thuy tinh s~ch da bi~t trU'oc kh6i 1U'Q'ngtCmg lo~i h~t: h~t do, h~t SQCdo,

h~t xat d6i, h~t vang, h~t b~c ph~n, h~t bi hU' hong, h~t xanh non, h~t g~o n~p. Can rieng tLJ'ngc6cch(ra cac lo~i h~t, chinh xac d~n 0,01 g, tu d6 suy ra kh6i 1U'Q'ngtung lo~i h~t.


Tr 1$tung lo~i h~t ()(;), tinh b~ng ph~n tram kh6i 1U'Q'ng,theo cong thLfC(C.6):

m·X =_1 x1001 m (C.6)

trong d6

mj la kh6i 1U'Q'ngtung lo~i h~t, tinh b~ng gam (g);

m la kh6i 1U'Q'ngm~u can, tinh b~ng gam (g).

K~t qua phep thCrla gia tri trung binh ella hai I~n xac dinh, tfnh d~n mot chCYs6 th~p phan.

17

TCVN 11888:2017

Thll' rnuc tai Ii~u tham khao

[1] Thong tLP50 27/2012fTT-BYT ngay 30 thanq 11 narn 2012 cua BO trLPcYngBOY tE§hLP&ngd~n vi~cquan Iy phu gia thuc pharn,

[2] Thong tLP50 08/2015fTT-BYT ngay 11 thanq 5 narn 2015 cua Be;'>trLPcYngBe;'>Y tE§sua dei, be sung

mot so quy dinh cua Thong tLPs6 27/2012m-BYT nqay 30 thang 11 narn 2012 hLP&ngd~n viecquan Iy phu gia thuc pharn.

[3] Thong tLP50 03/2016m-BNNPTNT ngay 21 thang 4 narn 2016 cua BO trLPcYngBONong nghi~p va

Phat tri~n nong then v~ ban hanh Danh rnuc thuoc baa v~ thuc v~t dLPQ'cphep SLfdunq, cam SLf

dl,lng cYVi~t Nam; cong b6 ma HS d6i voi thu6c baa v$ thuc vat duoc phep 5Lf dl:mg, earn 5Lfdl,lng cYVlet Nam.

[4] Thong tLP50 06/2017m-BNNPTNT ngay 08 thanq 3 narn 2017 cua BOtrU'cYngBe;'>Nong nghi~p vaPhat tri~n nong then sLfa dei, be sung me;'>ts6 noi dung cua Thong tU' so 03/2016ITT-BNNPTNT

ngay 21 thang 4 nam 2016 v~ ban hanh Danh ml,lC thuoc baa v$ thl,J'cv~t dU'Q'cphep 5Lf dl,mg,

c~m 5Lr dl,lng t~i-Vi~t Nam; cong bo ma HS doi v&i thuoc baa v$ thl,1'cv~t dLPQ'cphep 5Lf dl,lng,c~m 5Lf dl,lng t~i Vi~t Nam.

[5] Thong tU' s6 50/2016m-BYT ngay 30 thang 12 nam 2016 cua Be;'>trU'cYngBe;'>Y t~ quy dinh gi&~ _h~n tOi da dU' 1U'Q'ngthu6c baa v~ thl,1'cv~t trang thl,1'cph~m.

[6] QCVN 8-2:2011/BYT Ouy chu/m ky thu~t qu6c gia (f6i vai giai h~n 6 nhiem kim lo~i n~ng trangthl,1'cpham.

[7] QCVN 8-1 :2011/BYT Ouy chuan ky thu~t qu6c gia (f6i vai giai h~n 6 nhiem (f{)c t6 vi nam trangthl,1'cpham.

I8] CODEX STAN 198-1995 Standard for Rice.

[9] ISO 7301 :2011 Rice - Specification.

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