主题：【已应助】ASTM E424-71(2007)谁有这个标准啊，英文版本的。

ASTM E424-71(1993)谁有这个标准啊，英文版本的。有没有人有啊，我加大悬赏分了哦！
200分哦。有没有人来提供一个嘛。

Significance and Use

Solar-energy transmittance and reflectance are important factors in the heat admission through fenestration, most commonly through glass or plastics. (See Appendix X3.) These methods provide a means of measuring these factors under fixed conditions of incidence and viewing. While the data may be of assistance to designers in the selection and specification of glazing materials, the solar-energy transmittance and reflectance are not sufficient to define the rate of heat transfer without information on other important factors. The methods have been found practical for both transparent and translucent materials as well as for those with transmittances reduced by highly reflective coatings. Method B is particularly suitable for the measurement of transmittance of inhomogeneous, patterned, or corrugated materials since the transmittance is averaged over a large area.

1. Scope



1.1 These test methods cover the measurement of solar energy transmittance and reflectance (terrestrial) of materials in sheet form. Method A, using a spectrophotometer, is applicable for both transmittance and reflectance and is the referee method. Method B is applicable only for measurement of transmittance using a pyranometer in an enclosure and the sun as the energy source. Specimens for Method A are limited in size by the geometry of the spectrophotometer while Method B requires a specimen 0.61 m2 (2 ft2). For the materials studied by the drafting task group, both test methods give essentially equivalent results.

1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.



2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards

E259 Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical and Bi-Directional Geometries
E275 Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
E308 Practice for Computing the Colors of Objects by Using the CIE System


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Index Terms



pyranometer; reflectance; solar energy; spectrophotometer; terrestrial reflectance; transmittance;


就是这个了。有没有啊？

ASTM E424-71(R01)
2001版的行么？

不好意思 搞错了，我要2007版

如果没有其他的人来回，那就是你了

ASTM E424 - 71(2007)版未见有免费电子，01版不难，找到71和93版你对照01版看看吧

ASTM-E0424-71(Reapproved 93)Standard test methods for solar energy transmittance and reflectance (terrestrial) of sheet materials
ASTM-E424 - 1971 - SHEET MATERIALS, SOLAR ENERGY TRANSMITTANCE AND REFLECTANCE (

看看这个是不是你要的 ASTM E424-71(2007)    解压缩密码请向我发站内短信索取。

密码还不告诉我啊。我问了这么久了

原文由 灰米奇(eginzon) 发表:
ASTM E424 - 71(2007)版未见有免费电子，01版不难，找到71和93版你对照01版看看吧

ASTM-E0424-71(Reapproved 93)Standard test methods for solar energy transmittance and reflectance (terrestrial) of sheet materials
ASTM-E424 - 1971 - SHEET MATERIALS, SOLAR ENERGY TRANSMITTANCE AND REFLECTANCE (

挺详细的，谢谢了，可是2007版的呢？

密码已发短信息