Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

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“Step Out From the Old to the New”

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है”ह”ह

IS 6448 (1993): Diammonium phosphate [FAD 7: Soil Qualityand Gertilizers]

IS 8448 : 1983

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Indian Standard

DIAMMONIUM PHOSPHATE - SPECIFICATION

( Second Revision)

UDC 631859 -13 : 631-841-7

@ BIS 1993

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Decemb,r 1993 Price Group 1

Toler~

0.5 percelll

0.5 pelCellt.'

AMENDMENT NO. 1 NOVEMBER 2000TO

IS 6448 :1983 DIAMMONIUM PHOSPHATE­SPECIFICATION

( SeeollllR....)

( Pille t, cl.lUe 3.4 ) -lased tbe followllll dluae after 3.4:

'3.5 ToienDce - The tolerance limit II iDdieated ahall be applicable oa tilespecified valuea:

Nutr_

NItIOaea

PbOlpho1U1

(PCD20)

AMENDMENT NO. 2 MAY 2012 TO

IS 6448 : 1983 DIAMMONIUM PHOSPHATE — SPECIFICATION

( Second Revision )

[Page 2, clause 4.2(d)] — Substitute ‘Gross and net quantity in kg;’ for

‘Gross and net mass in kg;’. (FAD 7)

Reprography Unit, BIS, New Delhi, India

Fertilizer. SectioDai Committee, PCD 20

FOREWORD

This Indian Standard (S,cond R"I"o,,) wal adopted tby tbe Bureau of Indian Standards, afterthe draft finalized by the Fertilizers Sectional Committee had been approved by the Petroleum,.Coal and Related Products Division CouDcil.

Diammonium phosphateIs usually maDufactured by the ammoniatioD of wet process phosphoricacid.

This standard was first published in 1971 and was subsequently revised in 1980. In the originalstandard there were two srades namely, 18·46-0 and 20-48-0, in first revision the grade 20·48·0wal dropped .1 it was Dot beiDa produced in the country.

In this revision, in order to align with the specificatioDs Offthe Fertilizer (Control) Order, 19S7and tile Essential Commodities Act, 1955 of Government of India. a requirement for total nitrogen,all in ammoniacal form is beiDI substituted Cor two separate requirements for total nitrogen andammonical nitrosen- Requirement for moisture has been amended. A new requirement forurea has also been incorporated in line with FCO.

This standard is subject to the provisions imposed under Fertilizer Control Order whereverapplicable.

For the purpose of deciding whether a particular requirement of this standard is complied with,the final value, observed or calculated, expressing the result of a test or analysis, shall be roundedoff in accordance with IS 2 : 1960 'Rules for rounding off numerical values ( revised )t. The numberof significant places retained in the rounded off value should be the same as that of the specifiedvalue in this standard.

IS 6448 : 1993

Indian StandardDIAl\IMONIUM PHOSPHATE - SPECIFICATION

( Second Revision )The above-mentioned standards contain pro.visions which, through reference in this text,constitute provisions of this standard. At thetime of publication, the editions indicated werevalid. All standards are subject to revision.and parties to agreements based on this standardare encouraged to investigate the possibility ofapplying the most recent editions of thestandards indicated above.

3 REQUIREMENTS

3.1 Description

The material shall be in the form of free-flowinggranules.

3.2 Particle Size

Minimum 90 percent of the material shall passthrough 4 mm IS Sieve and be retained on1 rom IS Sieve. Not more than 5 percent shallbe below than 1 mm size.

The material shall be packed in the manner as

4.1 Packing

3.3 For particle size, the use of IS sieves con­forming to IS 460 ( Part 1 ) : 1985 is prescribed.Where IS Sieves arc not available, other standardsieves as judged from aperture size may, beused. [See IS 460 ( Part 3 ) : 1985 ].

Title

Specifications for test sieves:Part 1 Wire cloth testsieves ( third revision)

Specification for test sieves:Part 3 Methods of exami­nation of apertures of testsieves ( third revision)

Reagent grade water-Speci-fication ( third revision)

Code of practice for hand­ling and storage of baggedfertilizers

Methods of sampling andtest for fertilizers

Part 1 Sampling3.4 The material shall also comply with the

Part 2 Determination of requirements given in Table ].nitrogenPart 3 Determination of 4 PACKING AND MARKINGphosphorus

Part 6 Determination ofimpurities

The following Indian Standards are necessaryadjuncts to this standard.

IS No.

460( Part 1 ) : 1985

6092

5985 : 1985

1 SCOPE

2 REFERENCES

1070 : 1992

This standard prescribes the requirements and,the methods of sampling and test for diam­monium phosphate and diammonium phosphate'with urea.

460( Part 3 ) : 1985

6092( Part 1 ) : 1985

6092( Part 2 ) : 1985

6092( Part 3 ) : 1985

6092( Part 6 ) : 1985

Table 1 Requirements for Diammonium Phospbate

( Clause 3.4 )

81 Cbaracterlstic RequirementNo.(1) (2) (3)

i) Total nitrogen, percent by mass, Min 18'0

ii) Ammoniacal nitrogen form, percent by mass, IS'5Min

iii) Total nitrogen in the form of urea percent 2-Sby mass, Max

iv) Neutral ammonium citrate soluble. phos- 46·0phates ( as P.O, ). percent by mass, Min

v) Water soluble phosphates as ( p.O.), 41'0percent by mass, Min

vi) Moisture, percent by mass, Max 1·5

Metbod of Test. Ref toPart and clause in IS 6092

(4)

7 ofIS 6092 ( Pdct 2 ) : 1985

11 ofIS 6092 ( Part 2 ) : 1985

17 ofIS 6092 (Part 2 ) : 1985

6.7.8,9 of]S 6092 ( Part 3 ) : 1985

7 ofIS 6092 ( Part 3 ) : 1985

4-3 ofIS 6092 ( Part 6 ) : 1985

1

IS 6448 : 1993

agreed to ~ between the purchaser and thesupplier. Each bag shall be securely closed.

4.2 Marking

Each bag shall bear legibly and indelibly thefollowing information:

a) Name of the fertilizers;

b) Indication of source of manufacture;

c) Percentage of nitrogen and phosphorusby mass;

d) Gross and net mass in kg;

c) Batch number, in code or otherwise, toenable the lot of manufacture to be tracedback from records; and

f) Any other information necessary underI~CO.

4.2.1 The packages may also be marked withthe Standard Mark.

5 llANDLING AND STORAGE

Factors to be borne in view in the handling andstorage of the material shall be as prescribed inIS 5985 : 1985.

6 SAMPLING

6.1 Representative samples of the material shall

2

be drawn as prescribed in IS 6092 (Part 1 ) :1985.

6.1 Number of Tests

Test for all the requirements given in 3 shall beconducted on the composite test sample.

6.3 Criteria for Conformity

For declaring the conformity of the lot to therequirements of this specification, the testresults on the composite test sample shall satisfyall the requirements specified in 3.

7 TEST METHODS

Tests for the requirements listed under 3 shallbe carried out according to methods prescribedin IS 6092 (Part 2) : 1985, ]S 6092 ( Part 3 ) :1985 and IS 6092 ( Part 6 ) : 1985. Referenceto relevant parts and clauses is given in col 4 ofTable 1.

8 QUALITY OF REAGENTS

Unless specified otherwise, pure chemicals anddistilled water (see IS 1070: 1992) shall beemployed in tests.

NOTE - 'Pure chemicals' shall mean chemicalsthat do not contain impurities which affect theresults of analysis.

I Standard l\1arkI

I The use of the Standard Mal k is governed by the provisions of the Bureau of IndianI Standards Act, 1986 and the Rules and Regulations made thereunder. The Standard Mark on

I, products covered by an Indian Standard conveys the assurance that they have been produced

to comply with the requirements of that standard under a well defined system of inspection,testing and quality control which is devised and supervised by BIS and operated by theproducer. Standard marked products are also continuously checked by DIS for conformity tothat standard as a further safeguard. Details of conditions under which a licence for the uscof the Standard Mark may be granted to manufacturers or producers may be obtained fromthe Bureau of Jndian Standards.

Burea. of Indian StaDdards

BIS is a statutory institution established under the Bureau 01 India" Standards Act, 1986 topromote harmonious development of the activities of standardization, marking and qualitycertification of goods and attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced inany form without the prior permission in writing of BIS. This does not preclude the free use. inthe course of implementing the standard, of necessary details, such as symbols and sizes, type orgrade designations. Enquiries relating to copyright be addressed to the Director ( Publications ), BIS.

Review of Indian Staadards

Amendments are issued to standards as the need arises on the basis of comments. Standards arealso reviewed periodically; a standard along with amendments is reaffirmed when such reviewindicates that no changes are needed; if the review indicates that changes are needed, it is takenup for revision. Users of Indian Standards should ascertain that they are in possession of thelatest amendments or edition by referring to the latest issue of 'BIS Handbook' and 'StandardsMonthly Additions'. Comments on this Indian Standard may be sent to BIS giving the followingreference:

Doc: rcn 20 ( 1191 )

Amendments Issued Since Publication

Amend No. Date of Issue I Text Affected

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