Stanovení úplné aerobní biodegradability za řízených podmínek kompostování - Metoda stanovení uvolněného oxidu uhličitého - Část 2: Gravimetrické stanovení uvolněného oxidu uhličitého v laboratorním měřítku (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.2.2019
Designation standards: ČSN EN ISO 14855-2
Classification mark: 640512
Catalog number: 506143
Publication date standards: 1.2.2019
The number of pages: 32
Approximate weight : 96 g (0.21 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies a method for determining the ultimate aerobic biodegradability of plastic materials under controlled composting conditions by gravimetric measurement of the amount of carbon dioxide evolved. The method is designed to yield an optimum rate of biodegradation by adjusting the humidity, aeration and temperature of the composting vessel. The method applies to the following materials: - natural and/or synthetic polymers and copolymers, and mixtures of these; - plastic materials that contain additives such as plasticizers or colorants; - water-soluble polymers; - materials that, under the test conditions, do not inhibit the activity of microorganisms present in the inoculum. If the test material inhibits microorganisms in the inoculum, another type of mature compost or pre-exposure compost can be used