ARCHIVESHISTORIQUES
DELACOMMISSION
COLLECTION RELIEEDES
DOCUMENTS "COM"
COM(76)573
Vol.1976/0177

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COMMISSION OFTHEEUROPEAN COMMUNITIES
COM(76)573 final.
Brussels .4November 1976.
Proposal
foraCouncilDirective layingdownthespecificcriteria
ofpurityforantioxidants thatmaybeusedinfoodstuffs
intended forhumanconsumption
(submitted totheCouncilbytheCommission )
COM(76)573final

EXPLANATORY MEIORANDUii
Article 5(l)oftheCouncil Directive of13July 1970 (70/357/EEC )
ontheapproximation ofthelaws oftheMember States concorning
the antioxidants authorised for use infoodstuffs intended for
human consumption ^states that theCouncil shall acting unani­
mously onaproposal from theCommission ,lay down bydirective
thespecific criteria ofpurity for thesubstances listed inParts I
toIIIandIV ()to (7)oftheAnnex .
Thepurpose ofthis proposal istolay down these criteria .
The Commission has established these criteria inclose co-operation
with Government experts and the economic and social interests con­
cerned .
OJN° .L157 ,18/7/1970 ,.p.31

-II-
ProposalforaCouncilDirectivelayinqdownthespecificcriteriaof
purityforantioxidants thatmaybeusedinfoodstuffs intendedforhunan
consunpticn
THECOUNCILOFTHF.EUROPEANCO^'iUNITIES ,
HavingregardtotheTreatyestablishing theEuropeanEcononicCornunity,
HrvinqregardtotheCouncildirective70/357/EGCof13July1970onthe
approximation -ofthelawsof.the-MercherStatesconcerning theantioxidants
authorisedforuseinfoodstuffs intendedforhuranconsumption (1),and
inparticularArticle5.(i)thereof,
UrvinciregardtotheproposalfromtheCorcnission,
whereaspursuanttoArticle5.thereofantioxidants must
complywiththespecificcriteriaofpurityifany,laiddowninaccordance
withArticle5(l)thereof;
WhereasDirective65/66/^0of26January65(2),aslastamendedby
Directive 76/463/EEC(?),laiddownspecificcriteriaofourityforthe
preservatives authorizedforuseinfoodstuffs intendedforhur.anconsumption .
Whereasspecificcriteriaofourityshouldbelaiddownforallthe
antioxidants listedinPartsItoIIIandpoints4to7ofpartIVoftheAnnexto
Directiveof13July1970excludingthoseforwhichspecificcriteriaof
purityhavealreadybeenlaiddownintheDirective65/66/EEC;
•fhereasmeanwhile ■sorbitolandglycerolpoints5and6ofpartIV-ofthe
AnnextotheDirective 70/357/EEC)havebeenincludedinthelistofautho­
rizedsubstances intheCouncilDirective 74/329/EECof18June1974onthe
aporoximation ofthelawsoftheHenberStatesrelatingtoemulsifiers,.
stabilizers,thickeners andgellinganentsforuseinfoodstuffs <4)bearing
thenurbersF420andE4?.?respectively ;whereasthespecificcriteria
ofpurityforboththeseproductswillthereforebefixedinaccordancewith
theDirectivelayingdownthespecificcriteriaofpurityforenulsifiers,
stabilizers,thickeners andgellingagentsforuseinfoodstuffs ,
(1OJ:T°L157,18/7/1970,p.30
(21OTIf®22,9/2/1963»p.373/65
(3/CXJ3°L126,14/5/1376%p.3.3
(4)OJN*L189?1.2/7/1974,p«l

-III -
MAS ADOPTED TWISDIRECTIVE :
Article 1
Thespecific criteria ofpurity referred toinArticle 5(l)of
Directive 70/357/FFC nre set out inthe Annex hereto .
Article ?.
Within eighteen months ofreceipt ofnotification ofthis Directive ,Member
Strtes shall put into effect thn regulations andadministrative measures
nccessnry tocomply with theprovisions ofthis Directive andshall inform
th?Comnission thereof without delay .
Article 3
This Directive isaddressed tothe Member states .
Done atBrussels , Forthe Council /
The President

Specific priority criteria
General comments
(a)Exceptwhereotherwise stated,thequantities andpercentage valuesshall
becalculated "byweightfortheanhydrous formofthesubstance •
(b)Wherethesubstance inquestion doesnotexistfromtheoutsetinanhydrous
formandwhere"volatile substances "areinvolved ,thewaterofcrystal­
lization andwaterduetomoisture shallbeincluded inthesesubstances .
(o)Wherethedryingtemperature andtimearenotstated,thalettershallbe
understood tomean"toconstant weight"andtheformershallbe105°C.
(d)Wheretheinterpretation ofthecriteriasetoutbelowrequiresthatcertain
technical datasuchas"vacuum"date'bedefined,themethodsofanalysis
established pursuanttoArticle5§2oftheDirective concerning substances
havingantioxidant activity shallbereferred to.,
(e)Wheretheconcentration ismentioned ,thisshallbetaJcentomean,
weight/volume,exceptwhereotherwisestated.
(f)Temperatures shallalwaysbestatedindegreescentigrade (Celsius).
(g)Forsubstances E220toE224inclusive ,E226andE270,thespecific
prioritycriteria havebeenestablished bytheDirective establishing
specificprioritycriteriaforpreserving agents.

ANNEX
E300-L-Ascorbic acid (l)
APPEAHENCEWhite orpale yellow crystalline powder
MELTING POINT RANGE 189°-193° with slight decomposition
CONTENT Notlessthan99%^6^8^6 ^drying
inadesiccator with sulphuric acid or
phosphorus pentoxide
20
SPECIFIC OPTICAL ROTATORY POWER -+20.5° to21.5® (C«10%aqueous )
VOLATILE SUBSTANCES DETERMINED
OVER A24HPERIOD INA
DESICCATOR WITH SULPHURIC ACID
ORPHOSPHORUS PENTOXIDENotmore than 0.4%
SULPHATED ASH Notmore than 0.1%
PH 2.4to2*8in2%aqueous solution
(1) subsiancs concerned is!,-.{+} -AsoorWo acid

-3-
ANNEX
E301~SodiumL-ascorbate (l)
'(SodiumsaltofL-Ascorbicacid)
APPEARANCE Whiteorpaleyellowcrystalline powder
CONTENT Not'lessthan99%C6H7°6Na24h
, dryinginadesiccator withsulphuric acid
orphosphorus pentoxide
20
SPECIFIC OPTICALROTATORY POWERPoQ-+103°to+106°(C=5%aqueous)
D
VOLATILE SUBSTANCES DETERMINED Notmorethan0.3%
OVER24HPERIODINA
DESICCATOR WITHSULPHURIC ACID
ORPHOSPHORUS PENTOXIDE
PK 6.8to8.0in10%aqueoussolution
(l)Thesubstance concernedisaderivateofL-(i-)-Ascorbicacid

ANNEX.
>E302-CalciumL-ascorbate (1)
(CalciumsaliofL-Ascorbio acid)
APFEARANCE ' Whiteorverypalegreycrystalline powder
CONTENT Notlessthan99$Ca(CgH^O^)2.2H20after
24hdryinginadesiccator withsulphuric
acidorphosphorus pentoxide
SPECIFIC OPTICAL ROTATORY POWER +95°+97°(C-5faqueous)
VOLATILE SUBSTANCES DETERMINED Notmorothan0.3$(2)
OVERA24HPERIODINA
DESICCATOR WITHSULPHURIC ACID
ORPHOSPHORUS PENTOXIDE
pH 6.0to7*5in10%aqueoussolution
(1)Thesubstance concernedisaderivateofL-(+)-Ascorbioacid
(2)Thispercentage valuedoesnotrelatetothswaterofcrystallisation
buttotheatmospheric watervapour(moistureinthesubstance )deter­
minedundertheseconditions .

ANNEX
.E303-516-Diaretyl-L-Ascorbicacid(1)
(Aaco^tyldiacetate )-
APPEARANCE Whiteorpaleyellowcrystalline powder
MELTING POINTRANGE 155°-158°
CONTENT Notlossthan99%C^H^Og
SPECIFIC OPTICAL ROTATORY POWER -77°to-79"(C=2$inmethanol )
VOLATILE SUBSTANCES DETERMINED Notmorethan1%
OVERA24HPERIODINA
DESICCATOR WITHSULPHURIC ACID
ORPHOSPHORUS PENTOXIDE
SULPHATED ASH Notmorethan0»1#
Ν
(l)Thesubstance concernedisaderivateofL~(+)~Ascorbio acid

ANNEX
E304-6-Palmityl-L-ascorbic acid(1)
(Ascoityl 'pàlmitate )
APPEARANCE Impalpable whiteoryellowish-white powder
oryellowish-white crystals
MELTINGPOINTRANGE 111°-113°(changestoviscousstatewithout
completely melting)
CONTENT Notlessthan98fC^H^QO^
SPECIFICOPTICALROTATORYPOWER£b*Q'^°=i+21°to24°(C-5%inmethanol)
VOLATILE SUBSTANCES DETERMINED Notmorethan1£ "J..
OVERA24HPERIODINA
DESICCATOR WITHSULPHURIC ACID
ORPHOSPHORUS PENTOXIDE
SULPHATED ASH Notmorethan0.24>
v')Thesubstance concernedisaderivateofL-(+)-Ascorbicacid

ΛΝΙΙΕΧ ;
E306–Tocopherol-ri ohextracts ofnaturalorigin
APPEARANCE Clear,viscous,redtobrownish-red oil
CONTENT Notlessthan34$totaltocopherols
90
SPECIFICGRACITTd^ Notlessthan0.928andnotmorethan0.951
FREEFATTYACIDS Neutralization ofthefreefattyacidsin
10gE306inthepresenceofphenolphthalein ,
mustnotrequire morethan10ml0.1Nsodium
hydroxido or0.1Npotassium hydroxide

ANNEX
E307-Svrvthotic Alpha-tocophcrol (1)
APPEARANCE Clear,viscous,yellowish oilwhichdarkens
onexposure toairorlight
JQNTENT Notlessthan96Jc
REFR&CTIVE INDES20
"DNotlessthan1.503andnotmorethan1.507
SPECIFIC GRAVITY "d20Notlessthan0.947andnotmorethan0.95°
SPECIFIC ABSORPTION E
INETHANOL1%
1cmAttheabsorption maximumof292nmt
E1cm(292 S72~76
Attheabsorption minimumof255nm1
eJ"(255nm)î6.0-8.0
1cm
SULPHATED ASH Notmorethan0.1%
(1)Thesubstance concerned insynthetic DL-Alpha-tocophero1

Airaix
E308-Synthetic Gamma-tocopherol
APPEARANCE Clear ,viscous ,pale yellow oilwhich darkens
onexposure toairorlight
CONTENT
20REFRACTIVE INDEX n£
*
SPECIFIC GRAVITY d|°
SPECIFIC ABSORPTION E
INETHANOL „1'/-
1cmNotlessthan97%C28H48°2
Not less than 1o503andnot more than 1.507
Notless than 0.948 andnotmore than 0,959
Attheabsorption maximum of298nm
E1cm(^98nm):91-97
Attheabsorption minimum of257nm
Ej£M(257nm)Î5.0-8.0
SULPHATED ASH Not more than 0.1%

-10-
ANNEX
E309-Synthetic Delta-toconhcro 1
APPEARANCE Clear,viscouspaleyellowish ororange
oilwhiohdarkensonexposuretoairorlight
CONTENT Notlessthan97%
REFRACTIVE INDEXru Notlossthan1.500andnotmorethan1.504
20SPECIFIC INDEXd. Not"less -than «JtidnotmorethanO.962
*07 '
SPECIFIC ABSORPTION E1 Attheabsorption maximumof297nm-298nmINETHANOL '1cm .a
E1cm(297"298:89"95
Attheabsorption minimumof257nm:
EÎ(257nm):3.0-6.0
SULPHATED ASH Notmorethan0«1%

11
ANNEX
E311-Octyl vallate
APPEARANCE White orvery pale yellowish crystalline
powder
MELTING POINT RANGE 99-102.5° after 6hdrying at9°°
CONTENT
SPECIFIC ABSORPTION E
INETHANOL1fc
1cm
VOLATILE SUBSTANCES DETERMINED
OVER A4HPERIODAT60°INA
DESICCATCRNotlessthan98«5%^15^22^5 a^er4^
drying at60°
Attheabsorption maximum of275nm :
E1cm(275nm^*375"390
Attheabsorption minimum of218nm :
E]^(218nm):935–960
Icm
Notmore than 0»5 1°
SULPHATED ASH
FREE ACIDSNotmore than 0.05 %
Notmore than 0.5 expressed asgallic
acid (9.407 mggallic acid corresponding
to1ml0.05 N-sodium hydroxide ).

t12-
ANÎÏÏ3C
E312-Dodocvlcallate
APPEARANCE Whiteorpalecreamcrystalline powder
MELTING POINTRANGE 96°-98®after4hdryingat60°
CONTENTWotlessthan9^*5a^15^30^5a^or40.
dryingat60°
SPECIFIC ABSORPTION E
INETHANOL1%
1cmAttheabsorption maximumof2f5nms
14.
E1Sm*275nm^:300~325
VOLATILE SUBSTANCES DETERMINED Notmorethan0.5%
0V2RA4HPERIODAT60°INA
DESICCATOR
SULPH4TED ASH Notmorethan0.05
FUSEACISS Notmorethan0.57-expressed asgallic
aoid(9»407mggallicacidcorresponding
to1ml0.05N-eodiumhydroxide )«

ΛΗΚΞΧ
E320-Butylated hydroxyanisole (BHA)(1)
APPEARANCE Whiteorpaleyellowish powderorlarge
crystalswithwasyappearance andslight
aromatio smell
CONTENT
SPECIFIC ABSORPTION E
INETHANOLE1*
1cmNotlessthan98*5%^11^16^2an(^n°^"''es3
than85$ofthe3-tert.-Butyl-4-hydrox5r-
anisole isomer
Attheabsorption maximumof290nm:
e]^(290nm):190-210
1cm
Attheabsorption minimumof228nm:
E1^(228nm)s326-345
4-HYDROXYANISOLE CONTENT Notmorethan0.5%
SULPHATED ASH Notmorethan0»05%
(1)Allthesecriteriaapplytothesubstance asitstands®

-14-
ANNEX
Butylatedhydrosortoluene(BHT;
■APEaaBAHCE Whitecrystalline orpowdorycrystalline
substance
CONTENTNotlessthan99%^15^24^
MELTING POINTRANGE 690-70®(1)
1"■SPECIFIC ABSORPTION EJh
INETHANOL1cmAt"theabsorption maximumof278nm\
E1cm(278nm):81~88(1)
SULPHAT3SD ASH Not'morethan0.005%
(1)Thedatahersrelatetotheanhydrous substance (withoutanticoagulant )

ANNE5C
E322-Lecithins
APPEARANCE "" -••-Browttlicruidorviscoussemi-liquid orpowder
DESCRIPTION ;.-Lecithins aremixturesofphosphatides obtained
oysieansofphysicalprocedure fromanimalor
vegetable foodstuffs ?thisextraction triorproceed
'. -asfarasthestageoffractionation ofthe
. . lecithin complexintoitsvariouscomponents ,,
- -Thelecithins maybeslightly bleached in
"aqueousmediumbymean3ofhydrogenperoxide.
Thisoxidation mustnotchemicallymodifytho
ledithin phosphatides®
'C';Fj;'ENT Kotloss
VOLATILE' SUBSTANCES DETERMINED Hotmore
BY1HDRYINGAT105°C......
SUBSTANCES INSOLUBLE IN.BENZEJE Notmors
SUBSTANCES INSOLUBLE INACETONE ?Hotlees
ACIDNUMBER EXPRESSED ASKILLI-Notmora
GRAMSPOTASSIUM HYDROXIDE
KEEIED TONEUTRALIZE THEFREE
ACIDSPRESENT 121A1GSAMPLEthan60Xsubstance insoluble inacetone
than2$
thanQ«3$
than50 f-
ihan35
FEROXIDE JJUMBEE EXPRESSES AS
MILLÏSQUIVALENTS PERKOEcrualtoorlasst'lwjs10»

16-
ANNEX
E325-Sodiumlactate
(Sodiurasaltoflaoticacid)
APPEARANCE Whitehygroscopic mass.Solutions areprac­
ticallycolourless andodourless
DESCRIPTION 'Thesubstance isusuallyavailable commer­
ciallyintheformofanaqueoussolution
.containing 50"toGO%ofanhydrous sodium
lactate,
CONTENT Notlessthan98%NaC^H^O^afterdrying
ACIDITT Neutralization ofa1gsampleafterdrying
shallnotrequiremorethan0,5ml0.1N
sodiumhydroxide solutioninthepresenceof
phonolphtalein *
REDUCING SUBSTANCES Noreduction ofPehling'ssolution

-17-
ANNEX
E326-Potassium lactate
(Potassiumsaltoflacticacid)
APPEARANCE Slightly syrupy,almostodourless ,clear
liquid
DESCRIPTION Thesubstance isusuallyavailable commer­
ciallyintheformofsinaqueoussolution
containing 60#anhydrous potassium lactate
CONTENT
ACIDITÏNotlessthan57%K
Neutralization ofa1gsampleshallnot
require morethana0.22ml0.1Nsodium
hydroxide solutioninthepresence of
phenolphtalein.
Thedatagivenhererefertoa57aqueous
solution.Forotherconcentrated solutions ,
thevaluescorresponding totheirpotassium
lactatecontent mustbecalculated .
REDUCING SUBSTANCES' Noreduction ofFehling'ssolution

ANNEX
E327-Calciumlaotate (l)
(Calciurasaltoflactioacid)
APPEARANCE Almostodourless ,whitecrystalline powder
orgranules
CONTENT Motlessthan98$Ca after4h
dryingat120°
VOLATILE SUBSTANCES DETERIIINED
BY4HDOTINGAT120°Notmorethan3$
Thesubstance isavailable commercially in
formsotherthantheanhydrous form,the
mostcommonbeing:
-calciumlactate withonemolecule ofwater
ofcrystallization containing notwor?than
8$volatilesubstances .
-calciumlactatewiththreemolecules of
waterofcrystallization containing not
morethan20%volatilesubstances
-calciumlactatewithfivemolecules of
waterofcrystallization containing not
morethem30i-volatile substances#
ACIDITT Neutralization ofa1gsampleshallnot
require morethan0.5rol0*1N-sodium
hydroxide solutioninthepresenceofphenol-
phtalein.
Foraqueoussolutions thevaluescorresponding
totheircalciumlactatecontent mustbe
calculated .
FLU0KIKE
REDUCING SUBSTANCESNotmorethan30mg/kg
Noreduction ofPehling'ssolution
(1)Thedatag?-venhererefertotheanhydrous substance.

19-
ANNEX
E330-Citric acid
APPEARANCE Colourless ortranslucent crystalline solid
orwhito crystalline povrder
CONTENT Notlessthan99*5i-CgHgOy
VOLATILE SUBSTANCES ' Notmore than 0.51
- Thesubstance may "beobtained commercially
informs other than theanhydrous form .One
ofthe most common ofthese iscitric acid
with one molecule ofwater ofcrystallization
containing notmore than 8,8$volatile
substances ,
G&iLATES ''Notmore than 0»05 ^oxalic acid
SULPHATED ASH : Notmore than 0,05 1-
SULPHURIC ACID TEST 1gsample dissolved in10ml95^sulphuric
acid andheated for60min .at90°shall not
show adarker colouration than asolution
containing 0#5parts ofaCoC1^<,6K^0 solution
(59*5mg/ml)and4,5parts ofaFeCl^.fiHgO
solution (45*0 mg/ml)

-20
ANIIEX .
E331-Sodiumcitrates
(Sodiumsaltsofoitrioacid)
APPEARANCE Crystalline whitepowderorcolourless
crystals,
CONTENT Notlessthan99%sodiumcitrateexpressed
astrisodiumcitrateNa^C^H^Oyafterdrying
at180°
VOLATILE SUBSTANCES DETERMINED
BYDnriflGAT180°Notmorethan1%
Thesubstance isavailable commercially in
formsotherthantheanhydrous form,the
mostcommonbeing:
•*sodiumcitratewithtwomolecules ofwater
ofcrystallization containing notmorethan
13^volatile substances
-sodiumcitratewith5»5molecules ofwater
ofcrystallization containing notmorethan
30%volatile substances .
0XALATES Notmorothan0*05%exalioacid

Aîwnx .
B332-Potassium citrates (l)
(Potassium salte ofcitric acid )
APPEARANCE White ,hygroscopic ,granular powder or
•transparent crystals .
CONTENT Notloss than 99%potassium citrate express <
astripotassium citrate CgK^O^K ^after 4h
drying at1G0°
VOLATILE SUBSTANCES DETERMINED Notmore than 6f
DY4HDRYING AT180° •
OXALATES Notmore than 0.05 %oxalic aoid
(1)Thesubstance isavailable commercially intV .for-n ofpotassium citrate
with one molecule ofwater ofcrystallizati on *Thedata here refer toUr
substance with onemolecule ofwater ofcryr4_ii:Usatione ^

-22-
ANflEX
E333•»Calciumcitrates (ij
(Calciumsaltaofcitrioacid)
APPEARANCE Finewhitepowder
CONTENT Notlessthan97*5a>caloiumcitrateexpressed
astricalcium citratoCa.(C^IL-O-)-after
» 3o57Z
dryingat180°
VOLATILE SUBSTANCES DETERMINED Notmorethan13f>
BYDRYINGAT180° -; •
CARBONATES Dissolving of1gcalciumcitratein10ml
dilutehydrochlorio acid(2)mustnotliberate
morethanafewisolated bubbles.
0XALATES
FLUORINENotmorethan0.05%oxalioacid
Notmorethan30mg/kg
(1)Thesubstanceisavailable commercially intheformofcalciumcitrate
withfourmolecules ofwaterofcrystallization containing notmorethan
13ftvolatilesubstances .
(2)Mix260mlhydrochlorio acid(25f'v/vHCl)andalittlewater,thenmake
upto1000ml(approximately 2N)«

-23-
ANNEX
E334-Tartaricacid'(l)
APPEARANCE Colourless ortranslucent crystalline solid,
orvhitecrystalline powder
CONTENTNotlessthan99•5a66after
at1058
VOLATILE SUBSTANCES DETERMINED Notmorethan0.5%
AFTERDIETING AT105°
SULPHATED ASH Notmorethan0.1%
0XALATES Notmorethan0.05%oxalicacid
(0Thesubstance concernedisL-(+)-Tarte.rioac?d..r..T

24-
ANIiEX :
E335-Sodiumtartrates (1)
(Sodiumsaltsoftartaricecid)
APPEARANCE
CONTENTTransparent tcolourless orystals
Notlessthan99ftNagC^H^Ogafter3h
dryingat150°
VOLATILE SUBSTANCES DETERMINED Notmorethan17$
BY3HDRYINGAT150°
0XALATES Notmorethem0.05%oxalioacid
Ν %
(l)Thasubstances concerned arederivatesofL-(+)-Tartariaacid.'.Thio
substance isavailable commercially intheformofsodiumtartrate with
twomolecules oft-raterofcrystallization containing notlessthan14%
andnotmorethan17#ofvolatile substances#

AHNEK
E336-Potassiumtartrates (j)
»(Potassiumsaltsoftartarioacid)
APPEARANCE Khitacrystalline orgranulated powder
CONTENT Notleesthan99$K^C-K-Ogafterdryingat
160°
VOLATILE SUBSTANCES DETERMINED Notlessthan4%
BYDRYINGAT160° ; •■..';,"r.
OXALATES Notmorethan0.05%oxalicacid
(1)Thesubstance concernedisaderivateofL-(+)-Tartcricacid#
The'substance isavailable commercially intheformofpotassium tartra/t
■withhalfamolecule .ofyraterofcrystallization containing notmoretha
47-volatile substances .• .....

-26-
ANT1EX
E337-Sodiumpotassium tartrate (1)
APPEARANCE Colourless crystalsorwhitecrystalline
powder
CONTENT Notlessthan99%NaKC^Ogafter3h
dryingat150°
VOLATILE SUBSTANCES DETERMINED Notmorethan261
BY3HDRYINOAT150®
\
OXALATES Notmorethan0»055toxalicaoid.
(1)TheBubstance ooncernedisaderivateofL-(+)-Tart'&riqacid.Thesubstance
isavailable commercially intheformofsodiumpotassiumtartratewith
fourmolecules ofwaterofcrystallization containing notlossthan21J?
andnotmorethan26aLvolatile substances4

-27-
ANNEX •
E338-Orthophosphoric acid(l)
APPEARANCE Clear,colourless ,viscousliquid
CONTENT
CHLORIDES.. .Notlessthan85%^3^4
Notmorethan0.02%expressed aschlorine
NITRATES Notmorethan0.0005 %expressed atNaNO.
SULPHATES Notmorethan0.15Xexpressed asCaSO.
FLUORINE Notmorethan10mg/kgexpressed asfluorine
VOLATILE ACIDS Notmorethan0.001%expressed asaceticacid
(l)Allthedatahererefertoasubstance composedcfnot,lessthan85
HLPO.andnotmorethan'15^watery" ;••

-28-
ANNEX
E339A-Monosodium orthophosphate (1)
(Sodiumsaltsoforthophosphoric acid)
Slightlydeliquescent )whitepovrdeiy
crystalsorgranules
Notlessthan971-NaH^PO^after1hdrying
at60°andthen4hdryingat1056
VOLATILE SUBSTANCES DETERMINED ■Notmorethan2f
BY1HDRYINGAT60°THEN4H
DRYINGAT105°
WATERINSOLUBLE SUBSTANCES Hotmorethan0.2f
FLUORINE Notmorethan10mg/kgexpressed asfluorine#APPEARANCE
CONTENT
(l)Theformsofthesubstanceavailable commercially otherthantheanhydrous
formare: ''*"
Honosodiumorthophosphate withonemolecule ofwaterofcrystallization
containing notmorethan15%
Monosodium orthophosphate withtwomolecules ofwaterofcrystallization
containing notmorethan25

-29-
ANNEX
E339B-Disodiumorthophosphate (l)
(Sodiumsaltsoforthophosphoric acid)
APPEARANCE Anhydrous form:whitehygroscopic powder
Withtvomolecules water:whitecrystalline
solid
Withsevenmolecules water:whitegranular
powderofeffluorescent crystals
Withtwelvemolecules water:whitepowder
oreffluorescent crystals
CONTENTMotlessthan$8%NagHPO^after1hdrying
at60°'andthen4hdryingat105°
VOLATILE SUBSTANCES DETERMINED Notlessthan5$
BY1HDRYINGAT60°AND4H
DRYING AT105°
WATERINSOLUBLE SUBSTANCES Notmorethan0.2
FLUORINE Notmorethan10mg/kgexpressed asfluorine
(l)Theproductisavailable commercially informsotherthantheanhydrous
formsuchas:
-Disodium orthophosphate withtwomolecules ofwaterofcrystallisation
containing notmorethan21^ofvolatilesubstances
-Disodium orthophosphate withsevenmoleculesofwaterofcrystallization
'containing notmorethan50%ofvolatile substances . -•
-Disodium orthophosphate ivithtvelvemolecules ofwatercrystallization
containing notmorethan61%ofvolatile Babstonces *

-30-
ANNEX
E339C–Trisodium orthophosphate (l)
(Sodiumsaltsoforthophosphorio aoid)
APPEARANCE Whitepowder,crystalsorgranules
CONTENT Notlessthan97$Na^PO^after30min
calcining at800°
VOLATILE SUBSTANCES DETERMINED Notmorethan2f
BY30MINCALCINATION AT800° '
VJATERINSOLUBLE SUBSTANCES Notmorethan0.2
FLUORINE Notmorethan10mg/kgexpressed asfluorine *
"(l)Thesubstance •isavailable commercially inthefollowing formsotherthan
theanhydrous form:
~Trisodium orthophosphate withonemolecule ofwaterofcrystallization
containing notmorethan9%ofvolatile substanoes
"~Trisodiumorthophospha-tewithtwelvemoleculesofwaterofcrystallizationcontaining notmorethan volatilesut>stances «

AN1JEX
E340A-Monopotassium orthophosphate
(Potassiumsaltgoforthopliosphoric acid)
APPEARANCE Colourless crystals orwhitegranular or
Cï*ystalline powder
CONTENT Notlessthan98%KH2P04after4hdrying
" at105° •'•'
VOLATILE SUBSTANCES DETERMINED Notmorethan2%
BY4HDRYINGAT105a ..
WATERINSOLUBLE SUBSTANCES Notmorethan0.2£
FLUORINE Notmorethan10rng/kgexpressed asfluorine

-32-
ANNBC
E340B-Dipotassium orthophoBphate
(Potassiumsaltsoforthophosphoric acid)
ÀPFEARANCE ColourleBS orwhitegranular déliquescent
substance
CONTENT Notlessthan98%KgHP0^after4hdrying
at105°
WOLATILE SUBSTANCES DETERMINED Notmorethan2%
BY4HDETINGAT105°
WATERINSOLUBLE SUBSTANCES Notmorethan0.2%
FLUORINE Notmorethan10mg/kgexpressed asfluorine *

AilNEC
E340C-Tripotassium orthophosphate (l)
(Potassiumsaltsoforthophosphoric acid)
APPEARANCE Whitehygroscopic crystalsorgranules
CONTENT Notlessthan97%K,F0.after30minJ4
-■--calcination at800°
VOLATILE SUBSTANCES DETERMINED Notmorethan3fc
BY30MINCALCINATION AT800® '
WATERINSOLUBLE SUBSTANCES Notmorethan0„2p
FLUORINE "".Hotmorethan10mg/kgexpressed asfluorine#
(l)Thesubstanceisavailable commercially informsotherthantheanhydrous
form,themostcommon "being:
Tripotassium orthophosphate withonemoleculeofvraterofcrystnlligation
containing notmorethan20?T~ofvolatilesubstances#

34""
ΛΙ-ΠΤΕΧ ;
E341A-Monocalciumorthophosphate
(Calciumsaltsoforihophosphorio acid)
APFEAFANCFwhite,déliquescent granular powder,
crystalsorgranules
CALCIUM CONTENTAnhydrous form:notlessthan23%andnot
morethan25%expressed asCaO
Withonemoleculeofwater:notlessthan
22.2%andnotmorethan24.7%expressed
asCaO,
VOLATILS SUBSTANCES
FLUORINEAnhydrous )form:notlessthan14fandnot
morethan15*5*determined bylessduring
30minheatingat800°
Withonemoleculeofvater:notmorethan
0.6$(l)jdetermined ly3hdryingat60°
Notmorethan30mg/kgexpressed asfluorine .
(1)0.6$doesnotrefer.tPK&terofcrystallization butatmoisturelost
undertheseconditions . ••

35-
AN1CTC
E341.B-Picalciumorthonhosphate .
(Calciumsaltsoforthophosphoric acid)
APPEARANCE Impalpable whitepowder
CALCIUMCONTENT 'Anhydrous formsnotlessthan39%andnot
morethan42f;expressed asCaO
Withtwo,molecules ofvrater:notlessthan
31.9%andnotmorethan33«5%expressed
asCaO
VOLATILE SUBSTANCES DETERMINED Anhydrous form:notlessthan7aiidnot
BYCALCINATION BETWEEN300AND *
825°TOCONSTANT WEIGHT morethan/-
Withtrromolecules ofvater:notlessthan
24.5iiandnotmorethan26,5#
FLUORINE Notmorethan50mg/kgexpressed asfluorine.

36
ANNEX
E341C~Tri.calcium orthophosphate
(Calciumsalts.oforthophosphoric acid)
APPEARANCE Impalpable whitepowder
,(
CALCIUMCONTEJIT Wotlessthan90%Ca.(PO.)^aftercalcin&tion
■between800and825°toconstantweight
VOLATILE SUBSTANCES DETERMINE !)Notmorethan10£
BYCALCINATION BETWEEN 800AND
825°TOCONSTANT WEIGHT
FLUORINENotmorethan50mg/kgexpressed asfluorine

\-37-
ΑΙΓ.ΊΓΧ
Propylene glycol.(1,2-pro-oanediol )
APPEAMNCE Clear,colourless ,odourless ,viscous,
hygroscopic liquidwithaslightly sharp
flavour
CONTENT Notles3than97»5ahyweight1,2propane­
diolandnotmorethan0.2^water;the
remaining 0.8f.beingcomposedofapoly-
propyleneglycol compound whichfinthocase
ofthesubstance containing nowater,may
reach 1$
DISTILLATION RANGE Notlessthan185°andnotmorethan189°
PO
SPECIFICGRAVITYdj Notlessthan1.035andnotmorethan1.037
?0
REFRACTIVE INDEXn£ Notlessthan1.431andnotmorethan1.433
CALCINATION RESIDUES . Notmorethan0,07 1-DISTILLATI0N RANGE
SPECIFICGRAVITYd|°
REFRACTIVE INDEXn^°
CALCINATION RESIDUES