NUMERIC INDEX
SRM Descriptor 1d
4l
5m Cast Iron 6g 8k
Cast Iron Bessemer Steel
12h Carbon Steel, 0.4 C 13g Carbon Steel, 0.6 C 14g Carbon Steel, 0.8 C 15h Carbon Steel, 0.1 C 16f 17f
19h Carbon Steel, 0.2 C 20g Carbon Steel 25d Manganese Ore 30f
Limestone, Argillaceous Cast Iron
Page SRM Descriptor 32
Basic Open Hearth Steel, 0.1 C Sucrose (Polarimetric)
58 58 58 55 55 55 55 55 55
LA Steel, Cr-V (SAE 6150)
32e LA Steel, Ni-Cr (SAE 3140) 33e LA Steel, Ni-Mo (SAE 4820) 36b LA Steel, Cr-Mo 39j
45d Cu Freezing Point
46, 86 55 55 30 53 53 53 53
Benzoic Acid (Calorimetric Standard) 80 82
46h Portland Cement Fineness Standard 2, 72 49e Lead Freezing Point
82
50c Tungsten-Chromium-Vanadium Steel 57 53e Bearing Metal (84Pb-10Sb-6Sn) 54d Bearing Metal (Tin Base) 57b Silicon Metal
58a Ferrosilicon (73 % Si) 59a Ferrosilicon
64c Ferrochromium, High Carbon 68c Ferromanganese, High Carbon 69b Bauxite (Arkansas) 70a Feldspar, Potash 72g LA Steel (AISI 4130)
73c Stainless Steel, Cr (SAE 420) 76a Burnt Refractory (Al203-40 %) 77a Burnt Refractory, (Al203-60 %) 78a Burnt Refractory, (Al203-70 %) 79a Fluorspar, Customs Grade 81a Glass Sand
82b Cast Iron (Ni-Cr) 84l
120 Potassium Hydrogen Phthalate
63 64 58 58 58 58 58 30 32 53 56 32 32 32 30
32, 69 58 46
87a Aluminum-Silicon Alloy 88b Dolomitic Limestone 89 Glass, Lead Barium 90 Ferrophosphorus
92 Low-Boron, Soda-Lime Powder 93a High-Boron Borosilicate 94c Zinc-Base Die Casting Alloy 97b Flint Clay 98b Plastic Clay 99a Feldspar, Soda
100b LA Steel, Manganese (SAE T340) 101g Stainless Steel (AISI 304L) 106b LA Steel, Cr-Mo-Al (Nitralloy rG) 107c Cast Iron (Ni-Cr-Mo) 112b Silicon Carbide 113b Zinc Concentrate
120c Phosphate Rock (Florida)
121d Stainless Steel Cr-Ni-Ti (AISI 321) 122i Cast Iron
123c Stainless Steel Cr-Ni-Nb (AISI 348)
Page 60
32 69 58 69 69 67 31 31 32 53 56 53 58 68 30
114q Portland Cement Fineness Standard 2, 72 115a Cast Iron (Cu-Ni-Cr)
58
10, 30 56 58 56
125b High Silicon Steel - Calcium Bearing 53 126c High Alloy Steel, High Nickel 127b Solder, 40Sn-60Pb
129c LA Steel, High Sulfur (SAE 112) 131g LA Steel, High Silicon 132b Tool Steel (AISI M2)
133b Chromium-Molybdenum Steel
134a Molybdenum-Tungsten-Chromium- Vanadium Steel
136f Potassium Dichromate (oxidimetric standard)
139b LA Steel, Cr-Ni-Mo (AISI 8640) 141d Acetanilide 142 Anisic Acid 143d Cystine
148 Nicotinic Acid
152a Carbon Steel, 0.5 C 154c Titanium Dioxide 155 LA Steel, Cr-W
57 63 53 53 57 56
57
46 53 47 47 47 47 55 32 53
WWW.NIST.GOV/SRM PHONE: (301) 975-2200 FAX: (301) 948-3730 EMAIL:
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