ASTM D2500 Cloud Point Reference Materials： VHG Labs’ Cloud Point Reference Materials are intended for use in accordance with ASTM D2500 for the determination of the cloud point of petroleum products. The cloud point of a petroleum product is an index of the lowest temperature of their utility for certain applications. Each standard is verified by consensus analysis, and is supplied with a full Certificate of Analysis (COA) that states the certified value. Volume: 250mL Typical Cloud Point Range (°C) Product No 3 to 9 CXF5-250 -4 to 0 CXF2-250 -12 to -8 CXF10-250 -17 to -13 CXF15-250 -22 to -18 CXF20-250 美国VHG Labs参考物质及标样主要包括：1. 氮，硫，氯，金属标准；2. 标准废油分析，单元素磨损金属有机标准，多元素金属磨损标准，内部标准，金属添加剂标准，基体空白和溶剂，稳定磨损金属标准，多元素冷却剂标准，燃料稀释标准，裂纹检测的参考标准，卡尔费休滴定认证参考标准，烟尘含量标准；3.油品物理测试标准：闪点参考资料，粘度参考标准，降凝剂参考资料，浊点参考资料，冰点参考资料，蒸馏标准等。 北京美同达代理美国销售VHG品牌所有系列标准油，超低折扣，超惠价格！ 详情请致电：010-88482632/52457812/52457811

　　Round Jug, High-Density Polyethylene, Qorpak® 　　When you need to store large volumes of product, this Natural HDPE Handled Round is the perfect solution. It has a finger grip for easy handling. These HDPE jugs provide an excellent moisture barrier and are impact resistant. They are ideal for high-speed filling, demanding pharmaceutical specifications and the rough handling of interstate shipping. 　　Capacity Cap Size Cap Type Treatment Supplier No. VWR Catalog Number Unit 　　1.9 L (0.5 gal.) 38-400 Caps not Included — PLA-03273 16080-518 Case of 40 　　1.9 L (0.5 gal.) 38-400 Caps not Included Fluorinated PLA-03272 11311-310 Case of 40 　　3.8 L (1 gal.) 38-400 Caps not Included — PLA-03280 16080-563 Case of 4 　　3.8 L (1 gal.) 38-400 Caps not Included — PLA-03276 16080-552 Case of 60 　　1.9 L (0.5 gal.) 38-400 Black Phenolic with PolyCone Liner — PLC-03501 89204-956 Case of 40 　　3.8 L (1 gal.) 38-400 Black Phenolic with PolyCone Liner — PLC-03509 16085-009 Case of 60 　　3.8 L (1 gal.) 38-400 Black Phenolic with Solid Polyethylene Liner — PLC-03512 89204-954 Case of 60 　　1.9 L (0.5 gal.) 38-400 White Polypropylene F217 Lined — PLC-03504 89031-228 Case of 6 　　1.9 L (0.5 gal.) 38-400 White Polypropylene F217 Lined — PLC-03503 16085-007 Case of 40 　　3.8 L (1 gal.) 38-400 White Polypropylene F217 Lined Cleaned for Volatiles PLC-03519 89204-958 Case of 4 　　3.8 L (1 gal.) 38-400 White Polypropylene F217 Lined — PLC-03518 16081-001 Case of 4 　　3.8 L (1 gal.) 38-400 White Polypropylene F217 Lined — PLC-03517 16085-010 Case of 60 　　4 L (135 oz.) 38-439 Caps not Included Heavyweight PLA-03140 89237-494 Case of 48

产品名称： 502碳涂料 规　　格： MST-16056 产品备注： 502碳涂料 产品类别： 标准品 产 品 说 明 产品名称：SEM/dag-t-502碳涂料（货号：MST-16056） 英文名称：DAG-T-502 Carbon Paint 型号规格：MST-16056 DAG-T-502 Carbon Pain (different name, same product as Electrodag 502) 502 is a combination of specially processed carbon particles in a fluoroelastomer resin system. It remains flexible over a temperature range of -40°C to 260°C and cures at room temperature. 502 resists oxidation and has good adhesion qualities. The diluent is methyl ethyl ketone (MEK) and has fluid consistency. Solids content is 12.6%. Service temperature range is -40°C to 260°C. 502是一个组合的特殊处理过的碳粒子在一氟树脂系统。它灵活使用的温度范围在- 40℃到260℃。502具有良好的抗氧化和粘附特性。稀释剂是甲乙酮（甲乙酮）和流体的混合液。固体含量为12.6%。使用温度范围- 40℃到260°C 北京美同达科技有限公司

低温防护手套 Protect hands and arms against ultracold temperatures to –196°C (–321°F). An essential accessory when working with LN2, ultra-low temperature freezers, blast freezers, dry ice, and in coldrooms. Also for use with LNG (liquefied natural gas), liquid helium, and liquid oxygen in enclosed systems. Lightweight, breathable, and comfortable, gloves provide warmth while retaining flexibility even after prolonged exposure to cryogenic atmospheres. Gloves allow sufficient dexterity to handle small objects and controls. Waterproof gloves should be selected to protect the user from cryogenic liquids and vapors. Color: blue. Caution: Gloves are not for immersion in LN2. Size Length Style Supplier No. Catalog Number Unit Large 48.3 cm (19") Waterproof EBLWP 32884-047 Pack of 2 Large 48.3 cm (19") Water-Resistant EBL 32884-084 Pack of 2 Large 30.5 cm (12") Water-Resistant WRL 32884-197 Pack of 2 Large 30.5 cm (12") Waterproof WRLWP 32884-024 Pack of 2 Large 35.6 cm (14") Waterproof MALWP 32884-030 Pack of 2 Large 38.1 cm (15") Water-Resistant MAL 32885-757 Pack of 2 Large 71.1 cm (28") Waterproof SHLWP 32884-056 Pack of 2 Large 71.1 cm (28") Water-Resistant SHL 32884-130 Pack of 2 Medium 48.3 cm (19") Water-Resistant EBM 32884-073 Pack of 2 Medium 30.5 cm (12") Water-Resistant WRM 32884-186 Pack of 2 Medium 30.5 cm (12") Waterproof WRMWP 32884-022 Pack of 2 Medium 35.6 cm (14") Waterproof MAMWP 32884-029 Pack of 2 Medium 48.3 cm (19") Waterproof EBMWP 32884-045 Pack of 2 Medium 35.6 cm (14") Water-Resistant MAM 32885-735 Pack of 2 Medium 68.6 cm (27") Waterproof SHMWP 32884-054 Pack of 2 Medium 68.6 cm (27") Water-Resistant SHM 32884-121 Pack of 2 Small 48.3 cm (19") Water-Resistant EBS 32884-071 Pack of 2 Small 30.5 cm (12") Water-Resistant WRS 32884-175 Pack of 2 Small 30.5 cm (12") Waterproof WRSWP 32884-020 Pack of 2 Small 35.6 cm (14") Water-Resistant MAS 32885-713 Pack of 2 Small 35.6 cm (14") Waterproof MASWP 32884-028 Pack of 2 Small 48.3 cm (19") Waterproof EBSWP 32884-042 Pack of 2 Small 68.6 cm (27") Water-Resistant SHS 32884-119 Pack of 2 Small 68.6 cm (27") Waterproof SHSWP 32884-052 Pack of 2 X-Large 48.3 cm (19") Waterproof EBXLWP 32884-049 Pack of 2 X-Large 71.1 cm (28") Waterproof SHXLWP 32884-059 Pack of 2 X-Large 48.3 cm (19") Water-Resistant EBXL 32884-095 Pack of 2 X-Large 30.5 cm (12") Waterproof WRXLWP 32884-026 Pack of 2 X-Large 38.1 cm (15") Waterproof MAXLWP 32884-040 Pack of 2 X-Large 40.6 cm (16") Water-Resistant MAXL 32885-779 Pack of 2 X-Large 71.1 cm (28") Water-Resistant SHXL 32884-143 Pack of 2 X-Large 30.5 cm (12") Water-Resistant WRXL 32884-198 Pack of 2

Standard Reference Materials?简称(SRMs)是美国国家标准技术局(National Institute of Standards and Technology，NIST)制定的“标准参照样品(SRM)”，共有1200多种，每种标样都有美国国家标准技术局的详细分析报告和用途说明，SRM标准参照样品的适用范围：(1)帮助开发准确的分析方法；(2)用于校正检测仪器，质量控制，和测定检出极限；(3)保证检测方法可靠性和长久稳定性。 美国国家标准与技术研究院(NIST)是直属于美国商务部的一个副部级的联邦政府部门，原名：美国国家标准局（NBS），是美国重要的国家级研究机构之一。 NIST 成立于1902 年，主要从事物理、生物和工程方面的基础和应 用研究，以及测量技术和测试方法方面的研究，提供标准、标准参考数据及有关服务，在国际上享有很高的声誉。 NIST的科学家主要从事生物技术、化学、半导体电子学、建筑技术，陶瓷学、物理学、光电子学、防火、聚合物、信息技术、制造工程和计量科学。 ENGINEERING MATERIALS 工程材料 1 Sizing 大小 2 Surface Finish 表面加工 3 Fire Research 火灾研究 4 Nondestructive Evaluation非破坏可靠性评价 5 Performance Engineering Materials性能工程和材料 详细请咨询技术支持：

Acid Number (AN) Reference Materials:酸度 (AN) 标准参考物质VHG Labs提供的酸度标准参考物质适用于石油产品中的酸度测定，符合 ASTM D664/IP 177 (电位滴定法)和ASTM D974 (酸碱指示剂滴定法)的规定。每一瓶标样都会随瓶附带一份分析证书 (COA)，证书上的标准值和不确定度，符合 ASTM D664和D974的规定。 Matrix Nominal Value Size Product Number (mg KOH/g)* (grams) Hydrocarbon Oil 0.1 100 AN-0.1-100G Hydrocarbon Oil 0.5 100 AN-0.5-100G Hydrocarbon Oil 1 100 AN-1-100G Hydrocarbon Oil 1.5 100 AN-1.5-100G Hydrocarbon Oil 2 50 AN-2-50G Hydrocarbon Oil 3 50 AN-3-50G 美国VHG Labs参考物质及标样主要包括：1. 氮，硫，氯，金属标准；2. 标准废油分析，单元素磨损金属有机标准，多元素金属磨损标准，内部标准，金属添加剂标准，基体空白和溶剂，稳定磨损金属标准，多元素冷却剂标准，燃料稀释标准，裂纹检测的参考标准，卡尔费休滴定认证参考标准，烟尘含量标准；3.油品物理测试标准：闪点参考资料，粘度参考标准，降凝剂参考资料，浊点参考资料，冰点参考资料，蒸馏标准等。

产品名称： 96孔PCR反应板 规　　格： MCV-83009-668 产品备注：   产品类别： 实验室耗材及配件  产 品 说 明   Opaque black or white polypropylene PCR plates and optically clear cap closures are suitable for Real Time PCR applications. Plates are compatible with most thermal cyclers and are ideal for high throughput screening thermocycler applications. Smooth, thin, uniform well walls ensure accurate thermal transfer. Wells are slightly raised to accept optically clear strip caps or sealing films. All plates are autoclavable and certified free of RNase, DNase, and human DNA (lot-by-lot certificates available). Thin, flexible, easy-to-cut plates have a working capacity of 200

CHEMPLEX庐 THIN-FILM SAMPLE瑙勬牸锛氶暱鍗凤紙Continuous Rolls锛

产品名称： VWR防水温度计 规　　格： 61161-283 产品备注： 温度计 产品类别： 实验室耗材及配件 产 品 说 明 Thermometers are ideal for round-the-clock monitoring of semi-solids, air/gas, or liquids in incubators, refrigerators, freezers, water baths, and outdoor tanks. Useful in wet lab/plant areas and outdoors. Thermometers may be placed anywhere. Easy-to-view 6.4mm (1/4") high LCD digits can be read at a glance. LCD operates in environments above freezing. Probe with stainless steel sensor performs accurately when under water. Records highest and lowest temperature readings over any time period. Reading updates every second. Housing is waterproof and shockproof. Ordering Information: Thermometers are supplied with probe with 3m (10') cable, magnet to attach thermometer to metal, suction cups and Velcro

　　Bilsom™ LEIGHTNING® Earmuffs, Sperian Protection 　　这些耳罩经得起日常的频繁使用，并提供舒适的最高级别。它们的特点是独家的泡沫软垫头带和超软耳垫可以消除的头挤压力。钢线建设提供了高性能和强大的耐用性。独特的空气流量控制™技术在所有频率提供最佳的衰减。管理单元的耳垫让维修方便。超薄的领子耳罩和可折叠耳罩在低噪声环境提供适当的保护。 　　Description Noise Reduction Rating Supplier No. VWR Catalog Number Unit 　　L0F Folding Earmuff 23 dB 1013461 89013-683 Case of 20 　　Each 　　L0N Neckband Earmuff 22 dB 1013460 89013-681 Case of 20 　　Each 　　L2H Cap-Mounted Earmuff 25 dB 1011992 89013-671 Case of 20 　　Each 　　L3H Cap-Mounted Earmuff 27 dB 1011993 89013-673 Case of 20 　　Each 　　L3 Headband Earmuff 30 dB 1010924 82017-255 Case of 20 　　Each 　　Onyx Earmuffs, Jackson 　　Ideal for low or medium noise environment 　　Ball and socket pivoting adjustable ear cups with ultra soft ear cushions for extended wear 　　Noise Reduction Rate (NRR) Weight Supplier No. VWR Catalog Number Unit 　　23 dB 0.58 lb 138-3015085 300061-682 Each 　　26 dB 0.62 lb 138-3015086 300061-684 Each