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API SPEC 7-1: Rotary Drill Stem Elements

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342

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API SPEC 7-1: Rotary Drill Stem Elements: Errata 2

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ISO 5267-2:2025 Pulps – Determination of drainability – Part 2: “Canadian Standard” freeness method

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182

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MSS SP-106-2025: Cast Copper Alloy Flanges and Flanged Fittings: Class 125, 150, and 300

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174

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API 5L8: Field Inspection of New Line Pipe

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240

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API RP 13B-2: Field Testing Oil-based Drilling Fluids

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388

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API RP 13B-2: Field Testing Oil-based Drilling Fluids: Errata 1

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API TR 2WSIM: Weathervaning System Integrity Management

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API 570: Piping Inspection Code: In service Inspection, Rating, Repair, and Alteration of Piping Systems

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ISO 10927:2018

ISO 10927:2018 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)

CDN $173.00

SKU: 6165285a2eca Category:

Description

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 ‚ãÖ mol‚àí1 to 20 000 g ‚ãÖ mol‚àí1 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.

Edition

2

Published Date

2018-06-05

Status

PUBLISHED

Pages

13

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

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 ‚ãÖ mol‚àí1 to 20 000 g ‚ãÖ mol‚àí1 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.

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