Reference Standards for UHV-EL Retainers

Round UHV-EL Retainer can be ordered in Standard or Custom Configuration

The Standard Configuration is shown below. A custom configuration requires that details be given regarding the elements chosen and the configuration (a "blank" Custom Round Retainer is shown for ordering - please print out and fill in exactly as needed).

Fig.1 Standard Configuration for Round Retainer

See below for a list of elements and compounds, preceded by their respective order numbers.

Reference Standards for UHV-EL Retainers

Abbreviations:

M - Natural mineral
Opt - Optical crystal
P - Powder or grains: mixed with either Ag or Sn (for S containing materials) and pressed
TF - Thin film on silicon wafer
VD - Vapour deposit (CVD, LPCVD, etc.)
B - Bulk material
C - Crystalline
EM - End member mineral
F - Foil
HP - Hot pressed
Purity - "N" is the # of "9"'s. 5N stands for 99.999% pure, 2N5 is 99.5% pure
"+" - Higher purity
? - No certificate available. Most original containers with marked purity. With EDS analysis we see no additional elements (>0.1%)
* - These standards are very sensitive to humidity and should be kept in vacuum. We suggest using Vacu-Storr Desiccators.

Code	Symbol	Form	Purity		Code	Symbol	Form	Purity
1	Aluminium	Al	F	4N	75	Mercury Sulfide	HgS	P	4N5 ?
2	Aluminium Fluoride	AlF₃	P	2N5	75A	Mercury Telluride	HgTe	C	5N
3	Aluminium Oxide	Al2O3	C	4N ?	76	Molybdenum	Mo	C	4N
4	Aluminium Nitride	AlN	P	2N+	76A	Molybdenum Boride	MoB	P	2N
5	Antimony	Sb	B	4N8	77	Molybdenum Carbide	Mo2C	F	3N5 ?
6	Barium Fluoride	BaF2	C	2N	78	Molybdenum Silicide	MoSi2	HP	3N
7	Barium Sulfate	BaSO4	P	3N ?	79	Molybdenum Oxide	MoO3	P	2N5 ?
8	Barium Titanate	BaTi4O9	HP	2N5 ?	81	Osmium	Os	P	4N5
9	Barium Titanate	BaTiO3	P	3N	81A	Neodymium Fluoride	NdF3	F	3N
10	Beryllium (For Sale in U.S.A. Only)	Be	F	2N	81C	Neodymium Oxide	Nd2O3	P	2N8
11	Bismuth (For Sale in U.S.A. Only)	Bi	B	6N ?	82	Nickel	Ni	C	4N4
12	Bismuth Oxide (NO EXPORT)	Bi2O3	P	2N5 ?	82A	Nickel Aluminide	NiAl	F	2N5
12A	Bismuth Telluride (For Sale in U.S.A. Only)	Bi2Te3	B	5N	83	Nickel Oxide	NiO	F	3N5 ?
13	Boron	B	B	2N5	84	Nickel Phosphide	Ni2P	P	3N
14	Boron Carbide	B4C	P	5N ?	85	Nickel Silicide	NiSi2	P	3N ?
15	Boron Nitride	BN	B	4N	86	Niobium	Nb	P	3N7
16	Boron Phosphide	BP	P	3N	87	Niobium Carbide	NbC	P	2N5 ?
17	Cadmium	Cd	F	4N7	88	Niobium Oxide	Nb2O5	HP	3N5 ?
17A	Cadmium Sulfide	CdS	P	3N	88A	Niobium Nitride	NbN	P	2N5
17B	Cadmium Telluride	CdTe	B	5N	89	Palladium	Pd	P	3N
18	Calcium Carbonate	CaCO3	C	3N ?	90	Platinum	Pt	F	3N
19	Calcium Fluoride	CaF2	C	3N	91	Potassium Bromide	KBr	F	4N ?
20	Carbon (Pyrolytic)	C	CVD	3N ?	92	Potassium Chloride	KCl	C	3N5 ?
21	Carbon (Diamond), same as #168 (additional cost)	C (cleaved ~1mm)	C	?	93	Potassium Iodide	KI	C	3N ?
22	Cerium Oxide	CeO2	P	2N1	93A	Praeseodymium Fluoride	PrF3	C	3N8
23	Cesium Iodide	CsI	O *	2N ?	94	Rhenium	Re	HP	3N7
23A	Cesium Bromide	CsBr	P *	4N	94A	Rhenium Oxide	ReO	F	3N ?
24	Chromium	Cr	P	4N6	96	Rhodium	Rh	W	2N8
24A	Chromium Carbide	Cr3C2	P	2N8	97	Rubidium Chloride	RbCl	F	3N ?
25	Chromium Nitride	Cr2N	P	2N5	97A	Rubidium Iodide	RbI	P	2N7
26	Chromium Oxide	Cr2O3	HP	5N	98	Ruthenium	Ru	P	3N
27	Cobalt	Co	F	5N	99	Samarium	Sm	P	3N
28	Cobalt Oxide	Co3O4	P	3N	100	Scandium	Sc	F	2N9
29	Cobalt Silicide	CoSi2	P	2N	101	Selenium	Se	C	3N
29A	Cobalt Sulfide	CoS	P	2N5	102	Silicon	Si	C	5N
30	Copper	Cu	F	4N5	103	Silicon Carbide	SiC	CVD	Opt ?
31	Cupric Oxide	CuO	P	3N	104	Silicon Dioxide	SiO2	EM	2N5 ?
32	Cuprous Oxide	Cu2O	EM	3N	105	1000Å SiO2/Si	SiO2	TF	3N5
32A	Copper Selenide	CuSe	B	2N5	106	Silicon Nitride	Si3N4	HP	2N
33	Copper Sulfide	CuS	M	3N	107	468Å Si3N4/Si	Si3N4	TF	2N5
34	Copper Sulfide	Cu2S	M	2N+?	108	Silver	Ag	F	3N
35	Dysprosium	Dy	F *	3N	109	Silver Chloride	AgCl	C *	5N
36	Erbium	Er	F *	3N ?	109A	Silver Oxide	Ag2O	P	3N ?
37	Europium Oxide	Eu2O3	HP	3N	110	Silver Sulfide	Ag2S	C	?
38	Gadolinium	Gd	F *	3N ?	111	Sodium Chloride	NaCl	C	2N5
39	Gallium Arsenide	GaAs	C	5N ?	112	Sodium Fluoride	NaF	C	5N
40	Gallium Nitride	GaN	P	3N	113	Strontium Fluoride	SrF2	P	3N
41	Gallium Phosphide	GaP	P	2N5	114	Tantalum	Ta	F	3N5
42	Gallium Antimonide	GaSb	P	2N5 ?	115	Tantalum Carbide	TaC	HP	3N ?
42A	Gallium Selenide	GaSe	P	4N	116	Tantalum Nitride	TaN	P	4N8
42B	Gallium Sulfide	Ga2S3	B	4N	117	Tantalum Oxide	Ta2O5	P	1N8 ?
43	Germanium	Ge	B	2N	118	1000Å Ta2O5/Ta	Ta2O5	TF	2N
44	Germanium Oxide	GeO	P	2N5	120	Tantalum Silicide	TaSi2	P	2N5
45	Gold	Au	F	4N	121	Tellurium	Te	B	5N
46	Hafnium	Hf	F	2N5 ?	122	Terbium	Tb	F	3N
46A	Hafnium Boride	HfB2	P	4N7	123	Thallium Chloride	TlCl	P	3N ?
47	Hafnium Carbide	HfC	B	6N	125	Thulium	Tm	F	2N5
47A	Hafnium Nitride	HfN	P	2N5	126	Tin	Sn	F	5N
47B	Hafnium Oxide	HfO2	P	3N ?	127	Tin Oxide	SnO2	EM	2N5
48	Holmium	Ho	B	3N	127A	Tin Sulfide	SnS	P	2N5
49	Indium	In	F	4N	127B	Tin Selenide	SnSe	P	5N
50	Indium Arsenide	InAs	C	?	128	Titanium	Ti	F	2N5
50A	Indium Antimonide	InSb	P	3N ?	128A	Titanium Al Carbide	Ti2AlC	P	2N ?
51	Indium Phosphide	InP	C	5N ?	129	Titanium Carbide	TiC	HP	2N5
52	Indium Tin Oxide	ITO	P	4N	130	Titanium Diboride	TiB2	HP	2N5 ?
52	10% In, Inhomogenous	ITO	P	4N	131	Titanium Dioxide	TiO2	EM	2N5
52A	Indium Selenide	In2Se3	P	4N	132	Titanium Nitride	TiN	P	4N5
52B	Indium Sulfide	In2S3	P	3N8	132A	Titanium Oxide	TiO	HP	3N
53	Iridium	Ir	F	3N5	133	Titanium Silicide	TiSi2	P	3N
54	Iron	Fe	P	4N	134	Tungsten	W	F	4N
54A	Iron Carbide	Fe3C	F	3N	135	Tungsten Carbide	WC	HP	4N8
56	Iron Fluoride	FeF3	P	3N	137	Tungsten Oxide	WO3	P	2N+
58	Iron Oxide	FeO	P	3N ?	138	Tungsten Silicide	WSi2	P	2N5
59	Iron Oxide	Fe2O3	P	5N	139	Tungsten Sulfide	WS2	P	2N8
60	Iron Oxide	Fe3O4	EM	5N	140	Vanadium	V	F	2N5
61	Iron Phosphide	FeP	EM	3N	141	Vanadium Carbide	VC	HP	4N ?
62	Iron Sulfide	FeS2	P	3N ?	141A	Vanadium Nitride	VN	HP	2N5 ?
63	Lead	Pb	P	4N8	142	Vanadium Oxide	V2O5	P	4N ?
64	Lead Oxide	PbO	F	2N8	142A	Ytterbium	Yb	F	3N
64A	Lead Telluride	PbTe	P	5N	142B	Ytterbium Oxide	YB2O3	P	3N
65	Lead Sulfide	PbS	P	Opt ?	143	Yttrium	Y	F *	3N
66	Lanthanum Hexaboride	LaB6	P	3N5 ?	143A	Yag	YAlO	C	?
66A	Lanthanum Fluoride	LaF3	P	Opt	144	Yttrium Oxide	Y2O3	P	4N
67	Lutetium Fluoride	LuF3	P	3N	145	Zinc	Zn	F	3N8
68	Lithium Fluoride	LiF	P	4N	146	Zinc Oxide	ZnO	HP	3N
69	Magnesium	Mg	C *	3N	147	Zinc Selenide	ZnSe	C	?
70	Magnesium Fluoride	MgF2	F	3N ?	148	Zinc Sulfide	ZnS	C	?
71	Magnesium Oxide	MgO	C	4N	149	Zirconium	Zr	F	3N5
72	Manganese	Mn	B	3N	150	Zirconium Carbide	ZrC	HP	?
73	Manganese Sulfide	MnS	B	2N5	150A	Zirconium Nitride	ZrN	P	2N5
74	Manganese Oxide	MnO2	P	?	151	Zirconium Oxide (Mineral)	ZrO2	C	2N7 ?

Mineral		Formula (approximate)	Mineral		Formula (approximate)
152	Acanthite	Ag2S	169A	Diopside	CaMgSi2O6
153	Albite	NaAlSi3O8	170	Dolomite	CaMg(CO3)2
154	Almandine	Fe3²⁺Al2(SiO4)3	170A	Fayalite	Fe2²⁺SiO4
155	Andradite	Ca3Fe2³⁺(SiO4)3	171	Fluorapatite	Ca5(PO4)3F
156	Anorthite	CaAl2Si2O8	172	Forsterite	Mg2SiO4
156A	Augite	(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6	173	Haematite	Fe2O3
157	Baddeleyite	ZRO2 (traces of Ti and Fe)	174	Hornblende	Ca2(Mg,Fe²⁺)4Al(Si7Al)O22(OH,F)2
157A	Barite	BaSO4	174	(Amphibole)	Ca2(Mg,Fe²⁺)4Al(Si7Al)O22(OH,F)2
158	Benitoite	BaTiSi3O9	175	Kyanite	Al2O3.SiO2
159	Biotite	K(Mg,Fe²⁺)3(Al,Fe³⁺)Si3O10(OH,F)2	176	Magnetite	Fe3O4
159	(black mica)	K(Mg,Fe²⁺)3(Al,Fe³⁺)Si3O10(OH,F)2	177	Orthoclase	K2O.Al2O3.6SiO2
160	Bytownite	(Na,Ca)Al(Al,Si)Si2O8	177A	Pyrope	Mg3Al2(SiO4)3
161	Calcium Carbonate	CaCO3	178	Quartz	SiO2
162	Cassiterite	SnO2	179	Rutile	TiO2
163	Chalcocite	Cu2S	180	Sodalite	Na4(AlCl)Al2(SiO4)3
164	Cinnabar	HgS	180A	Spessartine	Mn²⁺3Al2(SiO4)3
165	Chrysoberyl	BeAl2O4	181	Spinel	MgAl2O4
166	Covellite	CuS	181B	Titanite	CaTiSiO5
167	Cuprite	Cu2O	182	Willemite	Zn2SiO4
168	Diamond, same as #21	C (cleaved ~1mm)	182	(Troosite)	Zn2SiO4
168	(additional cost)	C (cleaved ~1mm)	183	Wollastonite	CaSiO3

Note: electron probe compositions provided upon request or with standard. Some mineral standards have minor phases of other materials.

SRM# National Institute of Standards & Technology (formerly NBS) Please see note below regarding alloys

Glasses

Code		B2O3	Na2O	MgO	Al2O3	SiO2	Cl	K2O	CaO	TiO2	V2O5	Cr2O3	MnO2	Fe2O3	ZrO2	PbO	Bi2O3	BaO	ZnO	CoO	CuO
184	612		14		2	72			12		+50 ppm of 51 other elements
185	93a	12.5	3.9		2.2	80.8	0.06	0.01	0.01	0.01				0.028	0.04
186	K252					40							5					35	10	5	5
187	K229					30										70
188	K326	30	2	30.1		29.9			8
189	K309				15	40			15					15				15

Ti Alloys

Code		Fe	C	Mn	P	S	Si	Cu	Zn	Pb	Sn	Ni	Cr	V	Mo	Ti	As	W	Zr	Nb	Ta	Al	Co
190	654b	0.23					0.045	0.004			0.023	0.028	0.025	4.31	0.013	88.05			0.008			6.34
191	1128	0.134	0.011								3.04		2.96	15.13		75.64						3.06

Miscellaneous NIST Standards

Code		Fe	C	Mn	P	S	Si	Cu	Zn	Pb	Sn	Ni	Cr	V	Mo	Ti	As	W	Zr	Nb	Ta	Al	Co
192	1104	0.088			0.005			61.33	35.31	2.77	0.43	0.07
193	1108	0.044		0.0025				64.9	34.4	0.06	0.39	0.033
194	1110	0.033						84.5	15.2	0.03	0.051	0.053
195	1230	Bal	0.044	0.64	0.023	0.0007	0.43	0.14				2.42	14.8	0.23	1.18	2.12						0.24	0.15
195A	1243	0.79	0.024	0.019	0.003	0.0018	0.018	0.007				58.78	19.2	0.12	4.25	3.06			0.053			1.23	12.46
195B	1297	Bal	0.066	7.11	0.038	0.0033	0.397	0.442				5.34	16.69	0.08	0.33								0.13
196	C2402	7.3	0.01	0.64	0.007	0.018	0.85	0.19				51.5	16.15	0.22	17.1			4.29					1.5
196A	2321	Solder : Sn 60% / Pb 40%
197	SRM-482 5 wires in one 3mm ø mount. Cu:Au (20:80, 40:60, 60:40, 80:20) + pure Cu (additional cost)
197A	SRM-481 6 wires in one 3mm ø mount. Ag:Au (pure Ag, pure Au, 20:80, 40:60, 60:40, 80:20) (additional cost)
197B	871 Phosphor Bronze (CDA-521) (additional cost)

Steels

Code		Fe	C	Mn	P	S	Si	Cu	Zn	Pb	Sn	Ni	Cr	V	Mo	Ti	As	W	Zr	Nb	Ta	Al	Co
198	461	Bal	0.15	0.36	0.053	0.019	0.047	0.34		0.003	0.022	1.73	0.13	0.024	0.3	0.01	0.028	0.01	<.005	0.011	0.002	0.005	0.26
199	462	Bal	0.4	0.94	0.045	0.019	0.28	0.2		0.006	0.066	0.7	0.74	0.058	0.08	0.037	0.046	0.053	0.063	0.096	0.036	0.02	0.1
200	464	Bal	0.54	1.32	0.017	0.021	0.48	0.094		0.02	0.043	0.13	0.078	0.29	0.029	0.004	0.018	0.022	0.01	0.037	0.069	0.005	0.02
201	465	Bal	0.037	0.032	0.008	0.01	0.029	0.019		<.0005	0.001	0.026	0.004	0.002	0.005	0.2	0.01	0.001	0.002	0.001	0.001	0.19	0.08
202	466	Bal	0.065	0.11	0.012	0.009	0.025	0.033		0.001	0.005	0.051	0.011	0.007	0.011	0.057	0.014	0.006	<.005	0.005	0.002	0.01	0.04
203	467	Bal	0.11	0.23	0.003	0.009	0.26	0.067		0	0.1	0.088	0.036	0.041	0.021	0.26	0.14	0.2	0.094	0.29	0.23	0.16	0.07
204	468	Bal	0.26	0.47	0.023	0.02	0.075	0.26		<.0005	0.009	1.03	0.54	0.17	0.2	0.011	0.008	0.077	<.005	0.006	0.005	0.04	0.16
205	661	Bal	0.39	0.66	0.015	0.015	0.223	0.042			0.01	1.99	0.69	0.011	0.19	0.02	0.017	0.01	0.009	0.22	0.02	0.02	0.03
206	663	Bal	0.57	1.5	0.02	0.005	0.74	0.09		0.0022		0.32	1.31	0.31	0.3	0.05	0.01	0.04	0.05	0.049		0.24	0.05
207	664	Bal	0.87	0.25	0.01	0.025	0.066	0.25		0.024		0.14	0.06	0.1	0.49	0.23	0.05	0.1	0.069	0.15	0.11		0.15
208	665	Bal	0.008	0.0057	0.002	0.0059	0.008	0.0058				0.041	0.007	0.0006	0.005	0.0006	0.002						0.01
209	1761	Bal	1.03	0.68	0.043	0.033	0.19
210	1762	Bal	0.034	2.03	0.036	0.03	0.36
211	1763	Bal	0.2	1.59	0.012	0.022	0.65
212	1764	Bal	0.59	1.22	0.023	0.012	0.06
213	1765	Bal	0.006	0.14	0.007	0.004	0.005
214	1766	Bal	0.015	0.06	0.004	0.002	0.01
215	1767	Bal	0.051	0.02	0.005	0.009	0.02
216	1768	Bal	0.001	0.014	0.0013	0.0003		0.0006				0.0014										0.002	0.002

Alloys - Certified by a group of laboratories, NIST traceable. Analysis provided with each alloy purchased

Stainless Steels + High Temp		Low Alloy + Specialty Alloys		Nickel/Cobalt		Copper/Brass/Bronze
216B	AISI 302	233	C-4140	242	Inco 600	249	CDA 360
217	AISI 303	234	C-4340	243	Inco 625	250	CDA 510
218	AISI 304	235	C-8620	244	Inco 718	251	CDA 655
219	AISI 316	236	Tool Steel A-6	245	Inco 800	252	CDA 857
220	AISI 321	237	Tool Steel D-2	246	Hastelloy C-22
221	AISI 410	238	Tool Steel H-13	247	Hastelloy C-276
222	AISI 440C	239	Tool Steel M-2	248	Hastelloy X
223	PH13-8MO	240	2Cr-1Mo (36a)
224	15-5 PH	241	9Cr-1Mo (38a)
225	17-4PH	241A	50 NIL
226	CARP 20CB3	241B	52100
227	Maraging 300	241C	AISI 4820
228	HK-40	241D	AISI 9310

Miscellaneous Standards

229	BPSG (not an NIST standard), 4% P, 3.3% B.
230	Al-Cu: NIST traceable standard for energy dispersive x-ray detector calibration (additional cost).
231	C-Cu-Ag: Standard for electron backscattering adjustment. Used for gun shot residue calibration
232	GSR- Gun shot residue: mixture of Ba, Sb, Pb particles in epoxy and carbon coated.
Faraday Cup for beam current measurement, is available for all of the retainers and will take one of the spaces.

PLEASE READ CAREFULLY!
The metal alloys on this list cannot be assumed to be homogenous at the micrometer scale. If you intend to use ZAF corrections electron beam excited x-ray analysis (wavelength or energy dispersive), the sample volume must be homogenous within the electron excited volume. It is a misuse to use these metal alloys for bulk quantitative analyses. Nevertheless, they are useful for comparison purposes (in a least square sense) to compare against unknown materials. Every effort is made to insure that cutting, grinding, and polishing of the materials do not alter their composition.