Analisis Kadar Itrogen (N2) pada Crumb Rubber Mutu Sir 20 dengan Metode Semi Mikro Kjeldahl di PT. Rubber Hock Lie Sunggal

Abstract

The am:ount of Nitrogen (N2) in the crumb rz,bber SIR 20 was anal sed in PT Rubber Hock Lie Sitnggal using Micro Kjeldahl Method. The purpose of this research is to find out the amount o.t· the nitrogen in the crumb rubber and to determine whether the crumb rubber meet the SNJ 1903:2017. i t was obtained that the · itrogen 's amount was 0.25%;0.27%;0.26%;0.25%;0. 027% of each sample. In accordance with, the regulation o_f· the Ministry o_f· Trade No. 26 of 2021 about the Implementation of the SPPT SNI 1903:2,017 which includes the technical specification,s for Natural Rub·ber Parameter, states the maximum amount of Nitrogen in SIR 20 is 0.60%. To sum up, the samples of the crum:b rubber SIR 20 in PT. RHL Sunggal conform. the predetermined qualif), which is SNJ 1903:·2017. A Low arrwunt of nitrogen indicates good qitality o_f crumb rubber.