REGISTER

FR
Search
×
FR

Placeholder headline

This is just a placeholder headline

API SPEC 14L: Lock Mandrels and Landing Nipples : Reaffirmed

$

273

BUY NOW

Placeholder headline

This is just a placeholder headline

API SPEC 20F: Corrosion Resistant Bolting for Use in the Petroleum and Natural Gas Industries : Reaffirmed

$

169

BUY NOW

Placeholder headline

This is just a placeholder headline

API TR 5NCL Nickel Content Limits for API 5CT Sour Service Products

$

149

BUY NOW

Placeholder headline

This is just a placeholder headline

API SPEC 19ICD: Inflow Control Devices : Reaffirmed

$

189

BUY NOW

Placeholder headline

This is just a placeholder headline

API MPMS CH 23.2: Reconciliation of Liquid Tank Car(s) Quantities : Reaffirmed

$

218

BUY NOW

Placeholder headline

This is just a placeholder headline

API SPEC 16A: Specification for Drill-through Equipment

$

322

BUY NOW

Placeholder headline

This is just a placeholder headline

API RP 13B-2: Field Testing Oil-based Drilling Fluids wA1

$

388

BUY NOW

ISO 18447:2021

ISO 18447:2021 Tea – Determination of theaflavins in black tea – Method using high performance liquid chromatography

CDN $233.00

Description

This document specifies a high performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) method for the determination of content of the four major theaflavins of tea.

It is applicable to both leaf and instant black and oolong teas. The method is currently not validated for ready-to-drink (RTD) beverages.

Edition

1

Published Date

2021-06-10

Status

PUBLISHED

Pages

19

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies a high performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) method for the determination of content of the four major theaflavins of tea.

It is applicable to both leaf and instant black and oolong teas. The method is currently not validated for ready-to-drink (RTD) beverages.

Previous Editions

Can’t find what you are looking for?

Please contact us at: