iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN 12148:1996

(Main)

Fruit and vegetable juices - Determination of hesperidin and naringin in citrus juices - Method using high performance liquid chromatography

Fruit and vegetable juices - Determination of hesperidin and naringin in citrus juices - Method using high performance liquid chromatography

This draft European Standard specifies a method for the determination of the hesperidin and naringin contents, using high performance liquid chromatography (HPLC), in fruits and vegetable juices and related products.

Frucht- und Gemüsesäfte - Bestimmung von Hesperidin und Naringin in Zitrussäften - Hochleistungs-flüssigkeitschromatographisches Verfahren

Dieser Europäische Normentwurf legt ein Verfahren zur Bestimmung des Hesperidin- und Naringingehaltes mit Hilfe der Hochdruckflüssigkeitschromatographie (HPLC) von Frucht- und Gemüsesäften und verwandten Produkten fest.

Jus de fruits et de légumes - Détermination de la teneur en hespéridine et en naringine dans les jus d'agrumes - Méthode utilisant la chromatographie liquide à haute performance (HPLC)

Le présent projet de norme européenne spécifie une méthode de détermination de la teneur en hespéridine et en naringine des jus de fruits et de légumes et de leurs produits dérivés par chromatographie liquide à haute performance (HPLC).

Sadni in zelenjavni sokovi - Določevanje hesperdina in naringina v sokovih citrusov - Metoda tekočinske kromatografije

General Information

Status
Withdrawn
Publication Date
17-Sep-1996
Withdrawal Date
05-Dec-2023
ICS
67.160.20 - Non-alcoholic beverages
Technical Committee
CEN/TC 174 - Fruit and vegetable juices - Methods of analysis
Drafting Committee
CEN/TC 174 - Fruit and vegetable juices - Methods of analysis
Current Stage
Ref Project
SIST EN 12148:1998 - Fruit and vegetable juices - Determination of hesperidin and naringin in citrus juices - Method using high performance liquid chromatography

Buy Standard

EN 12148:1998EN 12148:1998
PreviousNext
Standard
EN 12148:1998
English language
15 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Frucht- und Gemüsesäfte - Bestimmung von Hesperidin und Naringin in Zitrussäften - Hochleistungs-flüssigkeitschromatographisches VerfahrenJus de fruits et de légumes - Détermination de la teneur en hespéridine et en naringine dans les jus d'agrumes - Méthode utilisant la chromatographie liquide a haute performance (HPLC)Fruit and vegetable juices - Determination of hesperidin and naringin in citrus juices - Method using high p
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN 16857:2017(Main)
Foodstuffs - Determination of benzene in soft drinks, other beverages and vegetable-based infant foods by headspace gas chromatography mass spectrometry (HS-GC-MS)
SIST EN 16857:2017

This European Standard specifies a method for the determination of benzene in soft drinks, other beverages and vegetable-based infant foods, by headspace gas chromatography mass spectrometry (HS-GC-MS). The method has been validated in an interlaboratory study via the analysis of spiked samples of carbonated soft drink, still fruit-based drink, carbonated fruit-based drink, vegetable and fruit juice containing carrot, infant food vegetable based and infant food containing meat, ranging from 1,9 µg/kg to 18,6 µg/kg. However, linearity of the instrument response was proven for the concentration range from 0,5 µg/kg to 20 µg/kg. The limit of quantification (LOQ) depends on the instrument but can generally be expected to be in the range from 0,5 µg/kg to 1,0 µg/kg.

  • Standard
    15 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 15890:2010(Main)
Foodstuffs - Determination of patulin in fruit juice and fruit based purée for infants and young children - HPLC method with liquid/liquid partition cleanup and solid phase extraction and UV detection
SIST EN 15890:2011

This European Standard specifies a method for the determination of patulin in fruit juices and fruit-based purée, such as baby food purée, using high performance liquid chromatography with ultra-violet detection (HPLC-UV). Using naturally contaminated and spiked samples this method has been validated for the determination of patulin in apple juice, at levels ranging from 3,0 μg/kg to 15,5 μg/kg, and in fruit-based baby food purée, at levels ranging from 3,4 μg/kg to 17,9 μg/kg. Baby food fruit purée (commercially available on the European market) used in this study contained the following ingredients: blueberry; apple; banana; lemon; wheat biscuits; wheat syrup; whole milk; and vegetable oil. A detailed listing, including the fractions, of each product used in this study is given in [1].
Further information on validation, see Clause 9 and Annex B.

  • Standard
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14177:2003(Main)
Foodstuffs - Determination of patulin in clear and cloudy apple juice and puree - HPLC method with liquid/liquid partition clean-up
SIST EN 14177:2004

This European Standard specifies a method for the determination of patulin in apple juices and apple puree up to 128 ug/kg using high performance liquid chromatography (HPLC).

  • Standard
    15 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
CEN/TS 16931-8:2024(Main)
Electronic invoicing - Part 8: Semantic data model of the elements of an e-receipt or a simplified electronic invoice
kSIST FprEN 16931-8:2024

This document establishes a semantic data model of an e-receipt or a simplified electronic invoice.
NOTE   In the remainder of this document, when “e-receipt” is mentioned, “simplified invoice” is also meant.
The semantic model includes essential information elements that an electronic receipt needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and domestic trade. The semantic model can be used by organizations in the private and the public sector for documenting by issuing a receipt for the purchase of services and /or goods. It can also be used for documenting a purchase between private sector enterprises. In addition, it has been designed for the use of consumers.

  • Draft
    69 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 19403-5:2024(Main)
Paints and varnishes - Wettability - Part 5: Determination of the polar and dispersive fractions of the surface tension of liquids from contact angles measurements on a solid with only a disperse contribution to its surface energy (ISO 19403-5:2024)
kSIST FprEN ISO 19403-5:2024

This document specifies a test method to determine the polar and dispersive fractions of the surface tension of liquids by optical methods. The method can be applied for the characterization of liquid coating materials.
If applied to liquids with non-Newtonian flow behaviour (see ISO 3219-1:2021, 3.22), restrictions can apply.

  • Draft
    10 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 16286-1:2024(Main)
Railway applications - Gangway systems between vehicles - Part 1: Main applications
SIST EN 16286-1:2024

This document specifies the technical and safety requirements applicable to gangway systems used in heavy rail and urban rail vehicles that are designed to allow passengers or staff to move between adjacent vehicles.
It also specifies:
- the requirements for the safety for passengers and/or staff in the gangway while the train is running,
- the assessment methods as well as pass/fail criteria for gangways installed on vehicles.
NOTE Some requirements in this document may not be applicable for gangways designed for use by staff only.
This document is not intended to specify requirements for articulation systems which can be an integral part of gangway systems.
This document is not applicable for rubber tube gangways and interconnecting gangways for coaches travelling at speeds of up to 200 km/h on high-speed lines with tunnel sections. Information about these types of gangway systems are given in Annex A and Annex B.

  • Draft
    48 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 17966:2024(Main)
Fire protection equipment - Carbon dioxide extinguishing systems for use on premises - Design and installation (ISO 6183:2022, modified)
SIST EN 17966:2024

This document specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of fixed carbon dioxide firefighting systems in buildings, plants or other structures. It is not applicable to extinguishing systems on ships, in aircraft, on vehicles or on mobile fire appliances, or to below ground systems in the mining industry; nor does it apply to carbon dioxide pre-inerting systems.
Design of systems where unclosable opening(s) of the protected volume exceed a specified area and where the opening(s) can be subject to the effect of wind is not specified, although general guidance on the procedure to be followed in such cases is given (see 7.4.3.2).

  • Draft
    77 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 21009-2:2024(Main)
Cryogenic vessels - Static vacuum-insulated vessels - Part 2: Operational requirements (ISO 21009-2:2024)
SIST EN ISO 21009-2:2024

This document specifies operational requirements for static vacuum insulated vessels designed for a maximum allowable pressure of more than 50 kPa (0,5 bar). It can also be used as a guideline for vessels designed for a maximum allowable pressure of less than 50 kPa (0,5 bar).
This document applies to vessels designed for cryogenic fluids specified in ISO 21009-1.
Static cryogenic vessels are often partly equipped by the manufacturer, but can be installed or re- installed by another party, such as the operator, user or owner.
NOTE 1        For the installation of these vessels, additional requirements can apply.
NOTE 2        Some requirements of this document can be covered by local regulations, e.g. safety distances, occupational safety and health.
NOTE 3        Additional requirements can apply to the operation of large scale and field-fabricated vessels.

  • Draft
    22 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 19403-6:2024(Main)
Paints and varnishes - Wettability - Part 6: Measurement of dynamic advancing and receding angle by changing the volume of a drop (ISO 19403‑6:2024)
kSIST FprEN ISO 19403-6:2024

This document specifies a method to measure the dynamic contact angle with an optical method. The dynamic advancing and the dynamic receding contact angles are determined.
By using the measurement specified in this document, the wetting and dewetting properties can be characterized. The morphological and chemical homogeneity of interfaces can also be determined.

  • Draft
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 17936:2024(Main)
Railway applications - Acoustics - Measurement of source terms for environmental noise calculations
SIST EN 17936:2024

This document addresses the measurement of source terms for environmental noise calculation for rail traffic (including light rail, such as trams, metros, etc.). It is applicable to the measurement of in-service trains on operational tracks.
It is not applicable to type acceptance testing of rolling-stock or tracks, or to derive source terms for time domain models.
The following rail traffic noise source types are in the scope:
-   rolling noise;
-   traction and equipment noise;
-   aerodynamic noise;
-   impact noise (e.g. rail joints, switch and crossings, wheel flats);
-   braking noise;
-   bridge noise;
-   squeal noise.
Noise from rail vehicles at standstill, such as stationary engine idling and auxiliary equipment at yards and stations, is covered by EN ISO 3095:2013 for measurement procedures and operating conditions, and by EN ISO 3740:2019 and EN ISO 3744 for the determination of sound power. It is therefore not in the scope of this document.
The calculation of the propagation of sound is part of generally standardized propagation models which are not addressed in this document.
Noise from fixed installations (e.g. stations, depots, electricity sub-stations) is not in the scope of this document.
Source terms are specific to a vehicle and track type. The scope includes measurement procedures and conditions and sampling requirements.

  • Draft
    63 pages
    English language
    sale 10% off
    e-Library read for
    1 day