2218-3620

2218-3620

S2218-36202021000500407

Ecuador

00 10 2021

00 10 2021

13 5 407 415

2018 4 1 1

27-40

2019 49

86-101

2017 62 4 4

1100-17

2018 10 4 4

103-9

2018 10 25 25

13-24

2007 10 19 19

23-7

2016 32 141 141

326-35

2020 12 4 4

399-406

2018 7 2 2

39-56

2018

2007

2021 8 1 1

304-31

2020

Servicio Ecuatoriano de Normalización 2018