SiO2

75±0.5

B2O3

11±0.5

Al2O3

5.4±0.5

BaO

0.5±0.2

CaO

0.5-1.5

Na2O

6.5±0.5

K2O

0.5±0.2

PbO

 

MgO

0.08

Expansion (30-300 ºC,×10-6/ºC) ASTM E228

4.8-5.0

Annealing point logη=13 ºC

779-783 ºC

Soft point logη=7.6 ºC

779-783 ºC

Working point logη=4.0 ºC

 

Transformation logη=14.5 ºC

 

Density g/cm3 ASTM C729

2.31-2.32

Hydrolytic resistance 0.02 N H2SO4

0.2 USP Type I ISO 719 HGB I

Acid class (DIN 12116)

Class S1

Alkali class(ISO 695)

Class A2

 

Int´l Spec.

 

AIR LINE

1. A sum max. of 1.5m, over 20 mm in length, per 10m are not permissible 2. over 0.1mm in width are not permissive

CONFORMED

STONE

ForAmpoules>0.4mm NG;0.2-0.4mm Max; 2 Pcs per tube
For Vials >0.5mm NG; 0.3-0.5mm Max.2 Pcs per tube

CONFORMED

KNOT

>0.8mm NG; ≥ 0.5mm MAX 1 pie 1 tube
≥ 0.3mm Max. 2 Pcs per 1 tube

CONFORMED

O.D.TOL.

For 22mm

±0.19 mm

W.T.TOL.

For 1 mm

±0.35 mm

BOW

 

≤1.0‰

COLOUR

 

Clear, transparent