Capsule Friability Tester
Contact Info
- Building 1, No. 5500 Yuanjiang Road, Minhang District, Shanghai,
- 高洁
- 13761436048
- 3982822529@qq.com
YJ-0923Capsule Friability Tester
I. Product Introduction
The polytetrafluoroethylene (PTFE) weight is a product made of PTFE material through machining, similar to the weights used for weighing. Its mass and size are specified by the Chinese Pharmacopoeia. It is used in conjunction with a glass tube and tweezers to measure the friability of medicinal hollow capsules.
II. Product Parameters
1. Polytetrafluoroethylene weight – Special for hollow capsules as specified in the Pharmacopoeia. Specifications: 20g, diameter: 22mm.
2. Material: Experimental-grade high-purity PTFE, which is corrosion-resistant, resistant to high and low temperatures, insulating, and non-sticky on the surface. It is machined from PTFE extruded material.
III. Product Application
Application: As specified for "hollow capsules" in the Chinese Pharmacopoeia (this device consists of a PTFE weight and a glass tube. Place the sample hollow capsule at the bottom of the glass tube, then drop the weight freely from above to strike the hollow capsule, and check the degree of rupture of the hollow capsule).
IV. Precautions for Use
A weight with qualified mass accuracy and diameter (specifications: 20g, diameter: 22mm) shall be used. The head of the weight shall be made in the same shape as ordinary weighing weights to facilitate clamping by tweezers during operation. The glass tube should be approximately 20cm long (custom weights are available). It is best to use PTFE tweezers, whose clamping action matches the head of the weight.
V. Testing Example
Testing of the friability of gelatin hollow capsules: Take 50 capsules, place them in a watch glass, transfer them to a desiccator containing a saturated magnesium nitrate solution, and incubate at a constant temperature of 25±1℃ for 24 hours. Take them out, and immediately place each capsule individually into a glass tube (inner diameter: 24mm, length: 200mm) that is upright on a wooden board (thickness: 2cm). Drop the cylindrical weight (made of PTFE, diameter: 22mm, weight: 20g) freely from the mouth of the glass tube, and check whether the capsules rupture. If any rupture occurs, the number of ruptured capsules shall not exceed 5.
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