主题:【求助】 应助 weight 10.00g to 1mg后面的 to 1mg 是指精确到 1mg 吗?

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luyeaa
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如题! 谢谢!
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diamond
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learner1999
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lingzhong
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luyeaa
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原话是
Tetraethylammonium Bromide, internal standard
solution—Into a 100-mL volumetric flask weigh approximately
10.80 g of tetraethylammonium bromide (TEAB) to 1
mg.

这篇ASTM标准中还有一句这样的话
Prepare duplicate specimens of the
standard paint, which contains a known concentration of
titanium dioxide, and each test paint using the following
procedure. Into a 20-mL vial weigh approximately 7.00 g of
paint to 1 mg.
Pipet 2 mL of TEAB internal standard solution
(see 6.4) into the paint and thoroughly mix.
何当奇
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weight 10.00g与 to 1mg 即0.001g没什么冲突,前面是称样量,后面是精确至。
雾非雾
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原文由 redanqi 发表:
weight 10.00g与 to 1mg 即0.001g没什么冲突,前面是称样量,后面是精确至。


是,所以应该说是weight 10.000g的。
poorlittle
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原文由 luyeaa 发表:
原话是
Tetraethylammonium Bromide, internal standard solution—Into a 100-mL volumetric flask weigh approximately 10.80 g of Tetraethylammonium bromide (TEAB) to 1 mg


This means that since it is approximately 10.80 g, 10.804, 10.803, 10.802……10.799,…… 10.795 g are all acceptable, but the measurement of the sample weight should be accurate to 0.001 g (i.e. 1 mg).
(Withdrawn, re-consider)

Taking the sample of exactly 10.800 g is not necesarry.
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Last edit by poorlittle
lingzhong
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原文由 poorlittle 发表:
原文由 luyeaa 发表:
原话是
Tetraethylammonium Bromide, internal standard solution—Into a 100-mL volumetric flask weigh approximately 10.80 g of Tetraethylammonium bromide (TEAB) to 1 mg


This means that since it is approximately 10.80 g, 10.804, 10.803, 10.802……10.799,…… 10.795 g are all acceptable, but the measurement of the sample weight should be accurate to 0.001 g (i.e. 1 mg).

Taking the sample of exactly 10.800 g is not necesarry.


一般没有你这种表述方式的
diamond
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何当奇
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原文由 mcds 发表:
原文由 redanqi 发表:
weight 10.00g与 to 1mg 即0.001g没什么冲突,前面是称样量,后面是精确至。


是,所以应该说是weight 10.000g的。

直接写10.0g也是可以的啊,就是在称量结果的时候要精确至至多少。
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