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Overview ISO 20137:2023 - Leather - Chemical tests - Guidelines for testing critical chemicals in leather provides practical guidance and curated lists of chemicals known to occur in leather and expl…
Overview ISO/TR 22131:2023 - "Railway applications - Railway braking - Country specific applications for ISO 20138-1" is a Technical Report that supplements ISO 20138-1 by documenting national calcul…
Overview ISO 20136:2020 - Leather: Determination of degradability by micro-organisms describes a laboratory test method for measuring the aerobic biodegradation of animal hides, skins and leathers (t…
Overview - ISO 20138-1:2018 (Railway braking performance) ISO 20138-1:2018 establishes general algorithms for calculation of braking performance of railway rolling stock using mean-value inputs. It c…
Overview ISO 20130:2018 - "Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro‑well plates" - specifies a laboratory method to measure multip…
Overview ISO 20138-2:2019 defines general algorithms for calculating braking performance of railway rolling stock using a step‑by‑step (time‑integration) method. The standard specifies methodologies…
1 Scope This document gives guidelines to apply the available chemical test methods for leather. This information can be used by those involved in setting specifications for leather, especially for t…