Standard Funnel 60 Approx, Short Stem, made of Soda Glass or Boro 3.3
Borosilicate Glass entirely conforms to the international standard ISO3583, and is a new special borosilicate glass of excellent chemical and physical properties with a silica content of 80%. It is highly stable in structure and, as a result, has marked mechanical strength and very high resistance against chemical attacks. Further, due to its low linear coefficient of thermal expansion, this glass is capable of withstanding high thermal shock and possesses good moulding ability. It is an excellent material for making laboratory apparatus where external heating is necessary, intricate laboratory glassware and chemical equipments as well as pressure water meter glass.
Principal Physical and Chemical Properties:
SiO2 Content...>80%
Strain Point...520º C
Annealing Point...560º C
Softening Point...820º C
Refractive Index...1.47
Light Transmission (2mm)...92%
Elastic Modulus...67KNmm-2
Tensile Strength...40-120Nmm-2
Glass Stress Optical Coefficient...3.8*10-6mm2/N
Processing Temperature(104dpas)...1220º C
Linear Coefficient of Expansion(20-300º C)...3.3*10-6K-1
Density(20º C)...2.23gcm-1
Specific Heat...0.9Jg-1K-1
Thermal Conductivity...1.2Wm-1K-1
Hydrolytic Resistance (ISO 719)...Grade 1
Acid Resistance (ISO 195)...Grade 1
Alkali Resistance (ISO 695)...Grade 2
Thermal Shock Resistance Rod...6*30mm 300º
Code Diam. (mm) O. D of Stem(mm) Leight(mm) Packing
RK14099 50 7 150 160PCS/carton
RK14100 60 8 150 120PCS/carton
RK14101 75 9 150 60PCS/carton
RK14102 90 11 150 12PCS/carton
Yancheng Rongkang Glassware Co., Ltd. is a professional manufacturer and supplier on disposable laboratory products based in China. With almost 15 years' joint experience in microscope slides and cover slips, it is producing and supplying premier quality products to its valued customers all over the world.
Nowadays, RONGKONG is engaging in developing and producing plastic disposable products for laboratory and is growing very fast to become one of the leading manufacturers in China.
RONGKANG'S coating product is Grinding Tools, such as, grinding belts, grinding wheel, etc. Best quality and offer rate will always attract you.
Quality assurance has been always the key secret of our success. RONGKANG is certificated by UNI EN ISO9001-2000 to assure all of our products and services are in international standard.
RONGKANG's professional team is working hard to guarantee more commitments and reliabilities to our customers. Welcome the clients all over the world come to have good cooperation with us, most sincerity heart always treat to you.
