| SRNT-3278 | 食用油中维生素E | Tocopherols in Edible Oils |
| SRNT-1573a | 番茄叶片 | Tomato Leaves |
| SRNT-132b | 工具钢（AISI M2） |
Tool Steel (AISI M2) (chip form) |
| SRNT-1157 | 工具钢（AISI M2） |
Tool Steel (AISI M2) (disk form) |
| SRNT-1857 | 工具钢磨损标准 | Tool Steel Abrasive Wear Standard |
| SRNT-2668 | NIST标准品 | Toxic Elements in Frozen Human Urine |
| SRNT-955d | NIST标准品 | Toxic Metals and Metabolites in Frozen Human Blood |
| SRNT-606 | 玄武岩玻璃中的微量元素 | Trace Elements in Basalt Glass |
| SRNT-8499 | 煤中的微量元素（沥青） | Trace Elements in Coal (Bituminous) |
| SRNT-1633c | 微量元素粉煤灰元素 | Trace Elements in Coal Fly Ash |
| SRNT-1634c | 跟踪在燃料油元素 | Trace Elements in Fuel Oil |
| SRNT-614 | Trace Elements in Glass | Trace Elements in Glass |
| SRNT-610 | 微量元素玻璃镜片 | Trace Elements in Glass |
| SRNT-611 | 微量元素玻璃镜片 | Trace Elements in Glass |
| SRNT-612 | 微量元素玻璃镜片 | Trace Elements in Glass |
| SRNT-613 | 微量元素玻璃镜片 | Trace Elements in Glass |
| SRNT-616 | 微量元素玻璃镜片 | Trace Elements in Glass |
| SRNT-617 | 微量元素玻璃镜片 | Trace Elements in Glass |
| SRNT-2584 | 跟踪室内灰尘中元素 |
Trace Elements in Indoor Dust (Nominal Mass Fraction of 1 % Lead) |
| SRNT-2583 | 跟踪室内灰尘中元素 |
Trace Elements in Indoor Dust (Nominal Mass Fraction of 90 mg/kg Lead) |
| SRNT-695 | 微量元素多营养元素肥料 | Trace Elements in Multi-Nutrient Fertilizer |
| SRNT-1575a | 微量元素松针元素 | Trace Elements in Pine Needles (Pinus taeda) |
| SRNT-2587 | 微量元素土壤元素（含铅油漆） |
Trace Elements in Soil Containing Lead from Paint (Nominal Mass Fraction of 3000 mg/kg Lead) |
| SRNT-2586 | 微量元素在土壤含铅油漆（标称值500毫克/公斤铅） |
Trace Elements in Soil Containing Lead from Paint (Nominal Mass Fraction of 500 mg/kg Lead) |
| SRNT-1570a | 追溯菠菜叶中元素 | Trace Elements in Spinach Leaves |
| SRNT-1401 | Trace Metals in Frozen Human Blood | Trace Metals in Frozen Human Blood |
| SRNT-723e | 三酸量滴定 | Tris(hydroxymethyl)aminomethane (HOCH2)3CNH2 Acidimetric Standard |
| SRNT-277 | 钨精矿 | Tungsten Concentrate |
| SRNT-480 | 钨钼EPMA |
Tungsten–20 % Molybdenum Alloy Electron Microprobe Standard (disk form) |
| SRNT-50c | 钨铬钒钢 |
Tungsten-Chromium-Vanadium Steel (chip form) |
| SRNT-1548b | 典型饮食 | Typical Diet |
| SRNT-8632a | 超细测试粉尘（UFTD） | Ultra Fine Test Dust (UFTD) |
| SRNT-494 | 非合金铜I（固体） |
Unalloyed Copper - Cu I (rod form) |
| SRNT-495 | 非合金铜二（固体） |
Unalloyed Copper - Cu II (rod form) |
| SRNT-457 | 非合金铜IV（固体） |
Unalloyed Copper - Cu IV (rod form) |
| SRNT-498 | 非合金铜V（固体） |
Unalloyed Copper - Cu V (rod form) |
| SRNT-399 | 非合金铜-铜VI |
Unalloyed Copper - Cu VI (chip form) |
| SRNT-500 | 非合金铜VII（固体） |
Unalloyed Copper - Cu VII (rod form) |
| SRNT-454 | 非合金铜XI（筹） |
Unalloyed Copper - Cu XI (chip form) |
| SRNT-1034 | 非合金铜 |
Unalloyed Copper (rod form) |
| SRNT-1496 | 未染色聚乙烯燃气管树脂 | Unpigmented Polyethylene Gas Pipe Resin |
| SRNT-3164 | Uranium (U) Standard Solution (Radioactive) |
Uranium (U) Standard Solution (Radioactive) |
| SRNT-1649b | 城市灰尘 | Urban Dust |
| SRNT-1648a | 城市颗粒物 | Urban Particulate Matter |
| SRNT-912b | 尿素 | Urea |
| SRNT-2141 | 尿素 |
Urea (Nitrogen in Organic Matter) |
| SRNT-2152 | 尿素（燃烧量热标准） | Urea Combustion Calorimetric Standard |
| SRNT-913b | 尿酸 | Uric Acid |
| SRNT-2557 | 二手汽车催化剂（坝段） |
Used Auto Catalyst (Monolith) |
| SRNT-2556 | 再生颗粒（汽车尾气净化催化剂） |
Used Auto Catalyst (Pellets) |
| SRNT-8550 | USGS25 |
USGS25 (Nitrogen Isotopes in Ammonium Sulfate) |
| SRNT-8551 | USGS26 |
USGS26 (Nitrogen Isotopes in Ammonium Sulfate) |
| SRNT-346a | 阀门钢 |
Valve Steel (chip form) |
| SRNT-3165 | Vanadium (V) Standard Solution | Vanadium (V) Standard Solution |
| SRNT-8505 | 钒原油 | Vanadium in Crude Oil |
| SRNT-2831 | 陶瓷和硬质合金维氏硬度 | Vickers Hardness, Ceramics and Hardmetals |
| SRNT-1894a | 铜显微硬度 | Vickers Microhardness of Copper |
| SRNT-1908 | 镍显微硬度 | Vickers Microhardness of Nickel |
| SRNT-1909 | 镍显微硬度 | Vickers Microharness of Nickel |