STN EN ISO 10927
| Name: | STN EN ISO 10927 |
| Validity: | Valid |
| Number of pages: | 24 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Plasty. Stanovenie molekulovej hmotnosti a distribúcie molekulových hmotností polymérov hmotnostnou spektrometriou v režime laserom asistovanej desorpcie/ionizácie matrice s časom letu (MALDI-TOF-MS) (ISO 10927: 2018) |
| English title | Plastics - Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) (ISO 10927:2018) |
| Release Date: | 01. 01. 2019 |
| Date of withdrawal: | |
| ICS: | 83.080.01 |
| Sorting character/National clasification code | 64 0240 |
| Level of incorporation: | idt EN ISO 10927:2018, idt ISO 10927:2018 |
| Official Journal | 12/18 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 10927:2011-09 (64 0240) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies a general method for determining the average molecular mass and molecular mass distribution of polymers (see Reference [1]) from 2 000 g · mol-1 to 20 000 g · mol-1 by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). The average molecular masses and molecular mass distributions are calculated from a calibration curve constructed using synthetic-polymer and/or biopolymer standards. This method is therefore classified as a relative method. The method is not applicable to polyolefins or to polymers with a polydispersity >1,2. |
| Preview: | Náhľad normy (PDF) |