VIETNAMESE NATURAL RUBBER

Limits of physico-chemical parameters of rubber latex SVR (TCVN 3769:2016)

No Technical parameters Rubber grades Test method

SVR 3L

SVR 10

1 Dirt content (%) not greater than 0.03 0.08 TCVN 6089:2016
2 Ash content (%) not greater than 0.8 0.8 TCVN 6088:2014
3 Volatile matter (%) not greater than 0.5 0.75 TCVN 6087:2010
4 Nitrogen content (%) not greater than 0.6 0.6 TCVN 6091:2016
5 Initial plasticity (P0) not less than 35 30 TCVN 8393:2010
6 Plastic retention index (%) not less than 70 60 PrTCVN 2020
7 Color index, difference between samples not greater than 6 TCVN 6093:2013

Crumb rubber is compressed into blocks according to TCVN: 3769-2016, Net weight of 33.333kg/block - 30 blocks/ton and wrapped by PE of 0.03-0.05mm thickness.

Dimensions of latex block: Supply capacity:
Length: 670±20mm Planting area: 44,000ha, in which 30,000ha is giving rubber.
Width: 330±20mm Output: 50,000-55,000tons/year, 15-20% is SVR 10; the rest is SVR 3L
Height: 170±5mm Production: 6 processing factories with capacity: 60,000tons/year