SIST EN 14984:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kalkdünger - Bestimmung des Produkteinflusses auf den Boden-pH-Wert - BodeninkubationsverfahrenAmendements minéraux basiques - Détermination de l'effet d'un produit sur le pH d'un sol - Méthode par incubation du solLiming materials - Determination of product effect on soil pH - Soil incubation method65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 14984:2016SIST EN 14984:2017en,fr,de01-april-2017SIST EN 14984:2017SLOVENSKI
STANDARDSIST EN 14984:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14984
July
t r s x ICS
x wä r z r Supersedes EN
s v { z vã t r r xEnglish Version
Liming materials æ Determination of product effect on soil pH æ Soil incubation method Amendements minéraux basiques æ Détermination de l 5effet d 5un produit sur le pH d 5un sol æ Méthode par incubation du sol
Kalkdünger æ Bestimmung des Produkteinflusses auf den BodenæpHæWert æ Bodeninkubationsverfahren This European Standard was approved by CEN on
s { May
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
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t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s v { z vã t r s x ESIST EN 14984:2017

Variations to the test methods . 27 A.1 General . 27 A.2 Variations . 27 A.2.1 Different measurement periods . 27 A.2.2 Supply of different amounts . 27 A.2.3 Soil different from the standard soil. 27 A.2.4 Different incubation temperature . 28 A.2.5 Additional measurements . 28 Annex B (normative)
Determination of moisture at full soil water holding capacity . 29 Bibliography . 31
Key
no liming material
different products X weeks of incubation Y soil pH Figure 1 — Soil pH versus weeks of soil incubation
1) No international buffered method is available at pH = 7. As soon as an International Standard is available for cation exchange capacity buffered at pH = 7, it will replace the NF X 31-130. SIST EN 14984:2017

Key
no liming material
different products X weeks of incubation Y efficiency in percent Figure 2 — Efficiency versus weeks of soil incubation 3.3 liming index ratio of the improvement in soil pH due to the product under test to that achieved using the reference liming material Note 1 to entry: The liming index, LIx is an indicator given by the following =x(pH1 - pH2)(pH3 - pH4)LI where LI is the liming index; pH1 is the pH of the soil with tested product after time x; pH2 is the pH of the soil alone after time x; pH3 is the pH of the soil with the reference liming material after time x; pH4 is the pH of the soil alone after time x; x is the length of time of the incubation test. Default value is four weeks. SIST EN 14984:2017

ENVI alternative expression of results, expressed as NV equivalent Note 1 to entry: The effective neutralizing value by incubation, ENVI, is an indicator given by the following Formula: =×4weeksENVILIRLMNV (for method A, see 5.5, Table 2) =×iweeksiweeks/100ENVIERLMNV (for method B, see 6.5.2) where ENVI is the effective neutralizing value by incubation; LI4weeks is the liming index at 4 weeks in method A; Ei weeks is the efficiency at i weeks in method B; RLMNV is the neutralizing value of the reference liming material (5.1.2); if the conventional NV unit is CaO, RLMNV = 75,6 if the conventional NV unit is HO-, RLMNV = 45,8. 4 Principle 4.1 General Incorporation of a standardized amount of liming material or material claimed to have a liming effect into a reference soil or range of defined soils. Incubation of these soils under controlled climatic conditions for a defined period. Checking the buffer capacity of the soil with a reference liming material and measuring the changes in soil pH. 4.2 Method A Monitoring after 24 h, 2 weeks and 4 weeks the changes in soil pH under controlled temperature and moisture conditions. 4.3 Method B Monitoring after 24 h, 1 week, 3 weeks, 6 weeks, 12 weeks, 24 weeks and 48 weeks, and 1 year, 1,5 years, 2 years and 2,5 years of the changes in soil pH under controlled temperature and moisture conditions. When testing calcined products (burnt products and slaked products), add monitoring at 1 h, 3 h and 6 h and 3 days. The test may be stopped at any time after 3 weeks, according to information required. The tests should be performed within the pH range of 4,6 to 7,0, subject to there being a linearity response. SIST EN 14984:2017
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