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ISO 1656:2019

Rubber, raw natural, and rubber latex, natural — Determination of nitrogen content
30. 7. 2019.

Опште информације

90.92     8. 1. 2025.

ISO

ISO/TC 45/SC 3

Međunarodni standard

83.040.10  

engleski   francuski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

This document specifies a macro-method and a semi-micro method for the determination of nitrogen in raw natural rubber and in natural rubber latex using variants of the Kjeldahl process.
NOTE The determination of nitrogen in natural rubber is usually carried out in order to arrive at an estimate of the protein content. Minor amounts of non-proteinous nitrogen containing constituents are also present. However, in the dry solids prepared from natural rubber latex, these materials can make a substantial contribution to the total nitrogen content.

Životni ciklus

PRETHODNO

POVUČEN
ISO 1656:2014

TRENUTNO

OBJAVLJEN
ISO 1656:2019
90.92 Odluka o izmeni ili reviziji standarda
8. 1. 2025.

REVIDIRAN OD

PROJEKAT
ISO/CD 1656