Media codes

"Media codes" are numbers that correspond to a type of analysis for a specific media (solid, water, gas, etc.).

Only one media code can be used per submission file. Media Code descriptions are for isotopes unless otherwise stated.

Media Code	Element(s)	Desired Service
21	dissolved gases - all	concentrations of N₂, O₂, CH₄, CO, CO₂, C1-C5 dissolved in water
40	C	ppmC of toc/doc (concentrations) in FRESH water & tic/dic SAL & FRESH
56	NCHS	%NCHS - Elemental concentrations of solids or liquids
57	NCS	%NCS - Elemental concentrations of solids or liquids
58	NC	%NC - Elemental concentrations of solids or liquids
59	O	%O - Elemental concentrations of solids or liquids
67	C	ppmC of toc/doc (concentrations) in SALINE water
74	S - special	%S - Elemental concentrations of organic S with high %C (special)
92	N - special	%N - Elemental concentrations of INorganic solids (special)
132	gas mixture - all	concentrations of He, H₂, N₂, O₂, CH₄, CO, CO₂, C1-C5, in a gas
135	gas mixture - N₂O	concentration of N₂O in a gas mixture

Media Code	Element(s)	Desired Service
45	C &/or O	Isotopes of calcite
46	C &/or O	Isotopes of dolomite/ankerite (specify in comments)
47	C &/or O	Isotopes of siderite
48	C &/or O	Isotopes of magnesite
49	C &/or O	Isotopes of other mineral (specify in comments)

Media Code	Element(s)	Service desired
1	H & O	Isotopes of "fresh" water (salinity less than 3PSU, LGR or Picarro)
4	H - only	Isotopes of "saline" or contaminated water (salinity greater than 3PSU)
6	H & O	Isotopes of "saline" or contaminated water (salinity greater than 3PSU)
7	H & O	Isotopes of "fresh" water on Gasbench
12	H	Isotopes of dissolved methane gas (pure or in a mix)
14	H	Isotopes of dissolved ethane gas (pure or in a mix)
16	H	Isotopes of dissolved propane gas (pure or in a mix)
30	H - only	Isotopes of organic solids (bulk analysis)
33	H - only	Isotopes of organic solids (exchange method)
34	H	Isotopes of organic liquids (GC)
82	H - only	Isotopes of inorganic solids
102	H - only	Isotopes of pure hydrogen gas
123	H - only	Isotopes of methane gas
125	H - only	Isotopes of ethane gas
127	H - only	Isotopes of propane gas
129	H - only	Isotopes of butane gas

Media Code	Element(s)	Desired Service
11	C	Isotopes of dissolved methane gas
13	C	Isotopes of dissolved ethane gas
15	C	Isotopes of dissolved propane gas
19	C - only	Isotopes of dissolved CO₂ (other than tictoc / dicdoc)
22	C - only	Isotopes of organic solids
23	C & N	Isotopes of organic solids
28	C - only	Isotopes of organic liquids
29	C & N	Isotopes of organic liquids
41	C	toc/doc isotopes of fresh waters (< 12 PSU)
42	C	tic/dic isotopes of fresh or saline waters
44	C	Isotopes of inorganic solids (graphite)
68	C	toc/doc isotopes of saline waters (> 12 PSU)
69	C	toc/doc isotopes of enriched saline waters (> 12 PSU)
100	C & O	Isotopes of CO₂ in air
120	C & O	Isotopes of pure CO₂ in break seals
121	C	Isotopes of CO₂ (low concentrations; gc/pre-con)
122	C	Isotopes of methane gas
124	C	Isotopes of ethane gas
126	C	Isotopes of propane gas
128	C	Isotopes of butane gas

Media Code	Element(s)	Service Desired
23	C & N	Isotopes of organic solids EA)
50	N - only	Isotopes of organic solids (EA)
51	N - only	Isotopes of organic liquids (GC)
52	N - only	Isotopes of inorganic solids or liquids (EA)
53	N - only	Isotopes of organic liquids (EA)
93	N - only	Isotopes of dissolved nitrogen (Gasbench)
101	N - only	Isotopes of N₂ gas
131	Ar & N & O	Isotopes of gaseous air (Gasbench)

Media Code	Element(s)	Service Desired
1	H & O	Isotopes of fresh waters (less than 3PSU, LGR or Picarro)
5	O - only	Isotopes of saline or contaminated waters (Gasbench)
6	H & O	Isotopes of saline waters (3PSU or greater, Gasbench)
7	H & O	Isotopes of "fresh" contaminated waters (Gasbench)
8	O & Ar & N	Isotopes of dissolved oxygen + argon + nitrogen (Gasbench)
32	O - only	Isotopes of organic solids (EA)
81	O - only	Isotopes of inorganic solids (excludes silicates)
86	O (¹⁸O & ¹⁷O)	Isotopes of dissolved oxygen (Gasbench)
100	C & O	Isotopes of CO₂ in air (Gasbench)
120	C & O	Isotopes of CO₂ (in break seals)
131	Ar & N & O	Isotopes of gaseous air (Gasbench)

Media Code	Element(s)	Service Desired
60	S	Isotopes of sulphides (EA)
61	S	Isotopes of inorganic S in whole rock or sediment
63	S	Isotopes of organic S in solids (EA)
64	S	Isotopes of organic S in liquids (EA)
70	S	Isotopes of sulphates (EA)
75	S	Isotopes of organic S with high %C (special)
103	S	Isotopes of SO₂ gas