ロンビック List of Products and Services

Our company conducts the "Environmental Stress Cracking Resistance Test (ESCR Test) using the 1/4 Elliptical Method." We attach resin materials to a testing jig shaped like a quarter ellipse and apply bending stress (load) to assess the occurrence of cracks when various chemicals and test solutions are applied, as well as to determine the critical strain (the minimum strain that causes cracks with that solution) from the location of crack occurrence, thereby evaluating the chemical resistance against various organic solvents. Resin products may come into contact with various chemicals and solvents depending on the environment in which they are used, and this serves as an indicator of their durability against the chemicals they encounter, that is, their chemical resistance. 【ESCR】 ■E: Environmental ■S: Stress ■C: Cracking ■R: Resistance *For more details, please refer to the related links or feel free to contact us.

We offer measurements of total light transmittance, diffuse transmittance, parallel light transmittance, and haze of transparent plastic materials. The model used is NDH4000 (manufactured by Nippon Denshoku Industries Co., Ltd.), the measurement method is the integrating sphere method, the light source is a halogen lamp, the measurement beam is 11mm in diameter, the incident aperture is 20mm in diameter, and the specimen shape is approximately 50×50mm. Please feel free to contact us when you need our services. 【Applicable Standards】 ■ Testing Standards - JISK7136:2000 Method for determining haze of transparent plastic materials - JISK7361-1:1997 Test method for total light transmittance of transparent plastic materials - JISK7105:1981 (discontinued) Test method for optical properties of plastics *For more details, please refer to the related links or feel free to contact us.

The "FMVSS No. 302 combustion test" is an evaluation of the flammability of materials used in automotive interior components. A test specimen (350×100×t mm) is held horizontally between U-shaped metal plates, and a 38mm flame is applied to the end for 15 seconds to measure the burn rate over a distance of 254mm from line A to line B. Our company can provide a consistent service from sample preparation for the FMVSS flammability test to the testing itself. 【Features】 ■ Comprehensive support from sample molding to evaluation for flammability testing ■ Also capable of thermal aging treatment ■ Provides temperature and humidity records during combustion testing *For more details, please refer to the related links or feel free to contact us.

We offer "evaluation of plastic films." Plastic films are used in a wide range of applications, including food container packaging, packaging materials, and agricultural films. We provide various measurements from physical properties to various characteristic evaluations. We also accept requests for specimen preparation tailored to various tests. Please feel free to contact us when needed. 【Measurement Items】 ■ Mechanical Properties ■ Surface Properties ■ Optical Properties ■ Thermal Properties ■ Electrical Properties ■ Others *For more details, please refer to the related links or feel free to contact us.

We would like to introduce our "Molding Shrinkage Rate Measurement" service. The shrinkage rate of plastics is one of the important physical properties when designing molds and products. Our company can measure the molding shrinkage rate in accordance with ISO (JIS) standards by measuring the cavity pressure during molding using pressure sensors installed in the mold. Please feel free to contact us when you need our services. 【Overview】 ■ Measurement Standard: ISO294-4 (JIS K7152-4) ■ Test Specimen: 60×60×2mm (ISO 294-3 Type D2, Axxicon mold) *For more details, please refer to the related links or feel free to contact us.

Our company provides support for various evaluations of the self-design guidelines for designated PET bottles established by the PET Bottle Recycling Promotion Council. According to the guidelines, the PET bottles used must conform to the fundamental standards outlined in the guidelines (e.g., the bottle must be made of pure PET), and if conformity is unclear, an evaluation based on the evaluation criteria is necessary. We are also available for meetings to discuss the process, so please feel free to consult with us. 【Evaluation Items】 ■ Basic Physical Property Evaluation ■ Reusability Suitability Evaluation - Fiber Applications - Sheet Applications - Bottle Applications - BtoB Applications *For more details, please refer to the related links or feel free to contact us.

We offer measurements of the total light transmittance, diffuse transmittance, parallel light transmittance, and haze of transparent plastic materials. The model used is NDH4000 (manufactured by Nippon Denshoku Industries Co., Ltd.), the measurement method is the integrating sphere method, the light source is a halogen lamp, the measurement beam is 11mm in diameter, the incident aperture is 20mm in diameter, and the specimen shape is approximately 50×50mm. Please feel free to contact us when you need our services. 【Applicable Standards】 ■Testing Standards - JISK7136:2000 Method for determining haze of transparent materials - JISK7361-1:1997 Test method for total light transmittance of transparent materials - JISK7105:1981 (discontinued) Test methods for optical properties of plastics *For more details, please refer to the related links or feel free to contact us.

Our company conducts odor analysis to investigate the causes of strange odors in resin materials. By measuring polypropylene (PP) pellets with an anise-like odor using HS-GC/MS and analyzing the odor components with the "Aroma Office" database, we can provide data aimed at identifying the cause of the strange odor. Additionally, starting from the odor impression (e.g., anise-like odor), we can perform reverse searches for multiple compounds recorded in the database and confirm their presence on the chromatogram. 【Features】 - Out of the 29 detected component peaks, 18 matched the odor library, with 6 components identified as substances derived from the anise-like odor. - We can also identify trace components buried among the main components (intensity ratio of approximately 1/100) without missing them. *For more details, please download the PDF or feel free to contact us.