Ammonium Hydroxide (28%)
Molecular Formula	NH4OH
Molecular Weight	35.05
Molecular Weight	0.900
At temp	20
UN No.	2672
Chemical Abstract Number	1336-21-6
Assay (%) Teneur	28.0 - 30.0
Colour (HU) Couleur	_ 10
Non-volatile matter / Matieres non-
volatiles	0.002%
Pyridine & homologues (C5H5N)	0.002%
Oxygen absorption / Absorption d'oxygène	0.008%
Carbonate (CO3)	0.002%
Sodium (Na)	0.0005%
Sulfate (SO4)	0.0002%
Ca, K	0.0001%
Cl, PO4	0.00005%
Al, Fe, Zn	0.00002%
Ba, Cd, Mg, S	0.00001%
Cu, Pb	0.000005%
Cr, Co, Mn, Mo, Ni, Sr	0.000002%

STANDARD FOR KJELDAHL DETERMINATION OF NITROGEN

Ammonium Sulfate (Primary Standard Primaire)
Molecular Formula	(NH4)2SO4
Molecular Weight	132.13
Melting point	235 (dec.) °C
Chemical Abstract Number	7783-20-2
pH @ 25°C (5% Solution)	5.0 - 6.0
Kjeldahl Nitrogen Content	20.98 - 21.38%
Mesh size/Grosseur	T.P.T.

AMP 95

AMYLASE/KIT

ANTIFOAM A EMULSION

Antifoam B
FOR LABORATORY USE ONLY
POUR USAGE DE LABORATOIRE SEULEMENT

AQUASTAR* Composite 5 (*EM Industries*)
UN No.	1993

AQUASTAR* Composite 2 (*EM Industries*)
UN No.	1993

Argon
Molecular Formula	Ar
Molecular Weight	39.39
Boiling point	-186 °C
Melting point	-189 °C
UN No.	1006
Chemical Abstract Number	7440-37-1

Meets A.C.S. specs./Conforme aux normes A.C.S.

Arsenic Trioxide (Primary Standard Primaire)
Molecular Formula	As2O3
Molecular Weight	197.84
UN No.	1561
Chemical Abstract Number	1327-53-3
Assay/Teneur	99.95-100.05%
Antimony (Sb) Antimoine	0.05%
Ignition residue/Résidu d'ignition	0.02%
Insoluble in dilute HCl/
Insolubles dans l'HCl dilué	0.01%
Chloride (Cl) Chlorure	0.005%
Sulfide (S) Sulfure	T.P.T.
Lead (Pb) Plomb	0.002%
Iron (Fe) Fer	5 ppm