China Leather chemicals—De GB Standards Search Result |
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GB/T 38411-2019 Leather chemicals—Determination of the free formaldehyde in leather process auxiliaries - 英文版 |
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GB/T 38410-2019 Leather chemicals—Determination of tannin content in tanning agent—Filter method - 英文版 |
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GB/T 38407-2019 Leather and fur chemicals—Determination of chromium (VI) and the reductive potential for chromium tanning agents - 英文版 |
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GB/T 38406-2019 Leather chemicals—Determination of tannin content in synthetic tanning agents - 英文版 |
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