LECO 619-591-740 Reagent Tube V-496

( Brand: Leco ), ( Manufacturer Part Number: 619-591-740 ), ( Part Type: Tube )

Review LECO Reagent Tube V-496

The **LECO 619-591-740 Reagent Tube (V-496)** is a high-performance, precision-engineered glass tube designed specifically for use in combustion analysis, particularly within LECO s line of carbon, sulfur, and nitrogen analyzers. Crafted from borosilicate glass with exceptional thermal stability and chemical resistance, this reagent tube is engineered to withstand the rigorous conditions of combustion reactions while maintaining structural integrity and ensuring accurate analytical results. The V-496 designation indicates a specialized configuration tailored for applications requiring precise control over reagent interactions, such as the determination of sulfur content in metals, alloys, or organic samples. Its seamless, tapered design minimizes dead space, optimizing the efficiency of the combustion process and reducing the risk of cross-contamination between samples. The tube s smooth, polished interior surface further enhances its suitability for high-precision work, as it resists the buildup of residues that could otherwise compromise measurement accuracy. Whether employed in industrial quality control, research laboratories, or material science applications, this reagent tube delivers reliable performance and extended usability, making it an indispensable component for laboratories demanding the highest standards of analytical precision.

### **Pros and Cons of buying a LECO 619-591-740 Reagent Tube (V-496)**

1. **Compatibility and Standardization** The LECO 619-591-740 is designed specifically for use with LECO combustion analyzers, ensuring seamless integration and reliable performance. This reduces the risk of cross-contamination or operational errors that could arise from using non-compatible tubes.

2. **High Purity and Consistency** LECO reagent tubes are manufactured to strict quality standards, ensuring consistent chemical purity and performance across batches. This is critical for accurate combustion analysis, particularly in industries like agriculture, environmental testing, or food science where precision matters.

3. **Durability and Longevity** The V-496 model is constructed from materials that resist corrosion and thermal stress, extending the tube s lifespan. Properly maintained, these tubes can be reused multiple times, making them a cost-effective choice for laboratories with high sample volumes.

4. **Compatibility with Common Analyzers** The tube is widely used with LECO s CHN (Carbon, Hydrogen, Nitrogen) analyzers, including models like the TruSpec CN, TruMac CN, and others. This broad compatibility reduces the need for specialized or proprietary alternatives.

5. **Minimal Maintenance Requirements** Unlike some disposable tubes, LECO reagent tubes can be cleaned and reused, provided they are handled correctly. This reduces waste and operational downtime associated with frequent replacements.

6. **Support and Warranty** Purchasing from LECO or an authorized distributor often comes with technical support and warranty coverage, ensuring that any defects or performance issues are addressed promptly.

---

1. **Cost Compared to Disposable Alternatives** While reusable, the initial purchase price of LECO reagent tubes is higher than many single-use disposable tubes. Laboratories with low sample volumes may find this cost prohibitive, especially if they do not fully utilize the tube s reusable potential.

2. **Cleaning and Maintenance Overhead** Reusing tubes requires thorough cleaning between uses to prevent carryover of residues from previous samples. This adds time and labor to the workflow, which may not be feasible in high-throughput environments where speed is prioritized.

3. **Potential for Contamination** If not cleaned properly, residue from previous samples can contaminate subsequent analyses, leading to inaccurate results. This risk is higher with organic or volatile samples that may leave difficult-to-remove deposits.

4. **Limited Availability Outside LECO Ecosystem** These tubes are optimized for LECO systems and may not be as easily interchangeable with other brands analyzers. Laboratories using non-LECO equipment may need to source alternative tubes, which could affect workflow flexibility.

5. **Depreciation Over Time** Like all laboratory consumables, reagent tubes degrade with use. Over time, wear and tear may reduce their effectiveness, necessitating eventual replacement even if they are reusable.

6. **Training and Protocol Requirements** Proper handling, cleaning, and storage procedures must be established and followed to maximize the tube s lifespan and accuracy. Laboratories without established protocols may face inefficiencies during the initial adoption phase.

---

### **Conclusion**

The LECO 619-591-740 reagent tube (V-496) is a high-quality, reusable option ideal for laboratories that prioritize accuracy, consistency, and long-term cost efficiency. Its compatibility with LECO analyzers, durability, and support from the manufacturer make it a strong choice for medium to high-volume testing environments where sample integrity is critical.

- **Laboratory Workload:** If sample volume is low, the upfront cost and maintenance may not justify the investment.

- **Budget Constraints:** Laboratories with tight budgets may prefer disposable tubes for simplicity, despite higher per-use costs.

- **Sample Type:** Tubes are best suited for non-corrosive or easily cleanable samples. Highly volatile or sticky samples may require more frequent replacement.

- **Existing Infrastructure:** Laboratories already using LECO systems will find these tubes seamless to integrate, while others may face compatibility challenges.

For laboratories that can justify the initial investment and implement proper cleaning protocols, the LECO 619-591-740 offers superior performance and cost savings over time. For smaller or less specialized labs, disposable alternatives may be more practical despite their higher per-use cost.

### **Recommendation**

- Your laboratory uses LECO combustion analyzers.

- You handle a moderate to high volume of samples requiring precise, repeatable results.

- You have the resources to implement and maintain a cleaning protocol.

- Long-term cost savings and reduced waste are priorities.

- Your sample volume is low, and the upfront cost of reusable tubes is not justified.

- Your workflow demands rapid turnaround without the overhead of cleaning.

- You use non-LECO analyzers and cannot confirm compatibility.

- Your samples are highly corrosive or difficult to clean, risking contamination.

For most LECO-equipped laboratories with consistent sample types and the capacity for proper maintenance, the LECO 619-591-740 is a recommended choice for reliability and efficiency.

Details:

With its design, it ensures stability and easy handling during experiments tests. The Leco 619-591-740 reagent tube is a high-quality glassware product designed for use in various medical and laboratory applications. Produced by the trusted brand LECO, this reagent tube is specifically designed for storage and transportation of reagents other chemicals.

part #: 619591740 price

• $34.00

specifications plasticwarelabsuppy:

• brand: Leco
• mpn: 619-591-740
• part type: Tube

general plasticwarelabsuppy:

• condition: New Open box
• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

offer plasticwarelabsuppy:

• options: Ship-to-home
• availability: In Stock
• quantity: 1
• best offers: True
• sold: 0
• started: March 12, 2026

returns plasticwarelabsuppy:

• method: Money back
• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

seller plasticwarelabsuppy:

• # reviews: 1688
• rating: 99.9%
• city: Erie, Pennsylvania

shipping plasticwarelabsuppy:

• service: USPS Ground Advantage
• class: Standard
• type: Fixed
• carrier: USPS
• cost: $0.00
• transit: 2-6 Days

payments plasticwarelabsuppy:

• other
• wallet: Google-pay
• credit card: Diners-club

Leco 619-591-740 Is Similar To:

• Leco 606-313 Inner Combustion Tube Ceramic New Ships Free (34.8% similar) Leco inner combustion tube ceramic 606-313 new ships free...(September 26th, 2024)
• Leco 606-309 Inner Combustion Tube Ceramic New Ships Free (34.8% similar) Leco inner combustion tube ceramic 606-309 new ships free...(September 30th, 2024)
• Leco 772-905 Corporation Tube Combustion New Other (37.6% similar) Make sure the particular listing states world wide shipping or ask before purchasing. Values will not be lowered on custom forms or marked as ts. Shipping information...(September 22nd, 2025)
• Leco 619-268 New High Sensitivity Reagent Tube (54.3% similar) We utilize the following: USPS, ups, FedEx. Model's - Leco CHN628, CNS20 FP20 FP628, Truman, tropic. High sensitivity reagent tube, brisket quartz glass for organic sample combustion furnaces. Leco 619-268. Your voice matters, and we encourage you to share your thoughts with us...(November 5th, 2025)
• Fisher Scientific Wl280858 Leco Ceramic Combustion Tube Fischer 30 Inch By 1 3 8 (24.3% similar) Could not make out the number on it but appears to be 2011 01. It reads 528331. Also came in a box but not sure it is the original...(February 7th, 2026)
• Leco 619-591-314 Reagent Tube V-498 (91.4% similar) Specifically, this reagent tube is a glass container made by the reputable brand Leco. Its part number is 619-591-314, ensuring that it can be easily identified and compared with other similar products. The Leco 619-591-314 reagent tube is a high-quality glassware product designed for use in medical...(March 12th, 2026)