Transmittance curve of glass

Figure 2. Transmittance curve of a glass containing PreOu...

Figure 15 (A) Spectral transmission curves showing effect of glass type and thickness. (B) Transmittance curves of ampoules (61) and vials (62) used in original and subsequent Japanese photostability studies. (61) 20mL colorless ampoules (JIS R3512, No. 5), (62) 15mL colorless vials (N-16, Mamemu, Osaka). Source From Ref. 5.

The LSPA band of the silver monolayer is located in the spectral range of 400-520 nm (curve 2) with maximum at about 460 nm, that is at the copper interband absorption range. At the frequencies near the copper LSPA, the silver monolayer demonstrates high transmittance compared with glass substrate transmittance at this spectral range. 

The transmission and absorption values should be related to particular w avelengths. A plot of transmittance or absorption coefficient in terms of wavelength yields characteristic curves that can be used for describing quantitatively the colouring of glass (see Chapter II, Section 6.6 on coloured glasses). 

Figure 2.21 Electrochromic switching behavior of glass/FTO/WO /ion-conductive-polymer-membrane/Niji jO/PANI/FTO/glass device (a) cychc voltammograms after the 50th and 300th cycles between -0.8 and +1.7 V at scan rate 20 m V/s (b) chronocoulometry curves and optical transmittance changes at X = 480 nm measured after 201 switches between -1.7 and +1.0 V and (c) the in situ optical spectra for bleached and colored states measured after 201 switches between -1.7 and +1.0 V and corresponding coloration efficiency. Reprinted with permission from [233]. Copyright (2012) Elsevier.

Hgure 1 Typical transmittance curves for 10 mm samples of fused silica and optical glass. (Adapted from the Oriel catalogue (1993), volume 3.)... 

Dimbleby discussed the protection of light-sensitive pharmaceutical preparations and evaluated colored glasses by means of transmittance curves to 300 m/i. 

Figure 6 shows the transmittance curve (reciprocal of absorption) for a 30% glass fiber polyamide material in natural and of the new LT grade. This grade is black to... 

Air sample analysis Glass impingers are used to obtain air samples. A separate bubbler is carried through all the steps except the actual air sampling in order to act as a blank. To each bubbler, 0-5 ml of 3% sodium nitrite solution is added and allowed to stand for about 90s. 1 ml of 10% sulphamic acid solution is added, mixed and allowed to stand for about 2 min to destroy all the excess nitrous acid present. 1ml of 0-1% N-naphthylethylene diamine is added, mixed and the colour allowed to develop for about 5 min. A reddish blue colour indicates the presence of TDI. The final volume is adjusted to 20 ml with water. The transmittance is read at 550 nm using a 1-cm or 5-cm cuvet. The sample absorbance, after allowing for the absorbance of the blank, is compared with the calibration curve, and the concentration of TDI in ppm is calculated as above. 

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