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CWA 17897-2:2023

Extraction, production and purification of added value products from urban wastes - Part 2: Extraction and purification of PHA biopolymers

General information

Valid from 17.07.2023
Base Documents
CWA 17897-2:2023
ICS Groups
13.030.10 Solid wastes 13.030.99 Other standards related to wastes
Directives or regulations
None

Standard history

Status
Date
Type
Name
17.07.2023
Main
CWA 17897-2:2023
The present document specifies a method of extraction and purification of PHA biopolyesters using chlorinated solvent-free and wet chemistry methods from enriched biomass with a PHAs extraction efficiency > 80 % with a purity > 95 % and a molecular weight > 200 kDa.
This document is applicable to pre-digestion of the input biomass, which is a dried PPB with high PHA content.

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English (PDF 247 KB)

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English