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ASTM E84 CLASS A ๊ธฐ์ค€ ์‹œํ—˜ ๊ฐ€๋Šฅ์—ฌ๋ถ€
์•ˆ๋…•ํ•˜์‹ญ๋‹ˆ๊นŒ.

์ƒ๊ธฐ ์ œ๋ชฉ๊ณผ ๊ฐ™์ด ASTM E84 CLASS A ๊ธฐ์ค€์„ ๋งŒ์กฑ์—ฌ๋ถ€ ์‹œํ—˜์ด ๊ฐ€๋Šฅํ•œ์ง€ ๋ฌธ์˜๋“œ๋ฆฝ๋‹ˆ๋‹ค.

ํ•ด๋‹น ์—ฐ๊ตฌ์›์—์„œ ์•ˆ๋˜๋”๋ผ๋„ ํ˜น์‹œ ๊ตญ๋‚ด์—์„œ ํ•ด๋‹น ์‹œํ—˜์ด ๊ฐ€๋Šฅํ•œ ๊ณณ์ด ์žˆ๋Š”์ง€ ์ •๋ณด๋ฅผ ๋ถ€ํƒ๋“œ๋ฆฝ๋‹ˆ๋‹ค.

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[๋‹ต๊ธ€]์„ฑ์ ์„œ ๊ด€๋ จํ•˜์—ฌ ๋ฌธ์˜๋“œ๋ฆฝ๋‹ˆ๋‹ค.
[๋‹ต๊ธ€]ASTM E84 CLASS A ๊ธฐ์ค€ ์‹œํ—˜ ๊ฐ€๋Šฅ์—ฌ๋ถ€