Cng ho x hi ch ngha Vit Nam

Tiu chun Vit nam

C ph bt yu cu k thut

TCVN 5251 - 1990

H Ni

TCVN 5251 - 1990

C quan bin son: Lin hip cc x nghip C ph Vit nam B Nng nghip v Cng nghip thc phm C quan ngh ban hnh: B Nng nghip v Cng nghip thc phm C quan trnh duyt: Tng cc Tiu chun - o lng - Cht lng C quan xt duyt v ban hnh: U ban Khoa hc Nh nc Quyt nh ban hnh s 733/Q ngy 31 thng 12 nm 1990.

Tiu chun Vit nam

Nhm M TCVN 5251 1990

C ph bt Yu cu k thut

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TCVN 5251 - 1990 Milled coffee. Specifications Khuyn khch p dng

1. Yu cu k thut ca c ph bt c qui nh trong bng sau : Tn ch tiu 1. Cm quan - Mu sc Bt mu cnh gin m Bt mu cnh gin khng u Mu cht lng (% khi lng) Hng I Hng II

- Trng thi - Mi

Khng chy, khng vn cc Thm c trng, khng c mi l

Khng vn cc Thm c trng, khng c mi l V m, th cht trung bnh. Khng c mi l Mu cnh gin m, trong, t yu cu

- V

V m , th cht phong ph, hp dn

- Nc pha

Mu cnh gin m, snh, hp dn

2. Ho l 2.1. mn - Di ry 0,56 mm khng t hn - Trn ry 0,25 mm khng nhiu hn 15 2.2. m khng nhiu hn 5 15 5 30 30

Tn ch tiu 2.3. Hm lng cafein khng t hn

Mu cht lng (% khi lng) Hng I 0,5 Hng II 0,5

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TCVN 5251 - 19902.4. Hm lng tro - Tro tng s khng nhiu hn - Tro khng tan khng nhiu hn 2.5. T l cht tan trong nc khng t hn 2.6. Tp cht khng nhiu hn 25 0,3 25 0,3 5 0,1 5 0,1

2. Phng php th theo TCVN 5252-90.

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