Main parameters
Critical radiant flux CHF (kW/㎡) : The lowest value of either the radiant flux (CHF) at the point where the flame is extinguished or the radiant flux (HF-30) at the farthest position where the flame propagates within 30 minutes (i.e., the radiant flux at the farthest distance the flame propagates within 30 minutes).
2. The radiation flux corresponding to the farthest distance of flame propagation on the specimen at the beginning of the HF-X (kW/㎡) test for X minutes.
3. Flame propagation distance: The maximum distance that a continuous flame can travel along the length of the specimen within a specified time.

EN 11925-2: To determine the flammability of building products by directly striking a vertically placed sample with a small flame in the absence of external radiation.

These test standards are used to evaluate different aspects of the fire resistance performance of products and provide information on factors such as ignition, flame spread, smoke generation and heat release. The results of these tests are used to classify products based on their fire resistance performance, while also helping designers and manufacturers develop safer and more fire-resistant products.

CHENGFENG is a professional manufacturer of Building materials/ Wire/ Plastics/ Rubber Fire retardant testing equipment

About CHENGFENG Company:

CHENFENG TESTING EQUIPMENT CO., LTD (DAXIAN INSTRUMENT EQUIPMENT CO., LTD) is Located in Changan Town (Dongguan City ,Guangdong Province, China),a famous historical town with prosperous industry and convenient transportation.

We are a high-tech enterprise which is specialized in developing and manufacturing Fire Testing Equipment, Building Material Fire Tester, Wire and Cable Fire Tester, Environmental Test Chamber, Textile Testing Equipment, Toys Testing Equipment and etc.

CHENGFENG's testing equipment are widely used in various field: scientific institutions, colleges, inspection institutions, auto parts, electronics, electricals, LED, photoelectricity, mobile, plasticand rubber, telecommunication, chemical industry, aerospace, building material and product, wire and cable,textile and fabrix, etc.

All CHENGFENG testing equipment are designed according to international test standards, such as ISO, ASTM, DIN, EN, GB, BS, JIS, UL, TAPPI, AATCC, IEC, VDE, CSA,CEN and so on.

Our service:
1. High quality guarantee.
2. Shipment with professional documents.
3. Packing as your request, with photo before shipment.
4. Reply within 48 hours and provide solution within 3 working days
5. Professional after-service from our engineers.
6. Warranty period 12 monthes.

Our advantages:
1. Professional technology support.
2. Full experience of large numbers containers loading in Chinese sea port.
3. Fast shipment by reputed shipping line.
4. Best service after shipment with emails.
5. We are professional test equipment manufaturer in China with excellent experience and skills, also have best quality products.

6. In-time after-sale service.