[贵州省地方标准] DB52/T 301-1991 平坝灰鹅
[贵州省地方标准] DB52/T 293-1991 天柱黑番鸭
[贵州省地方标准] DB52/T 285-1991 贵州黄鸡
[贵州省地方标准] DB52/T 284-1991 三穗鸭
[国外标准] JIS Z 9204：1991 General rules for energy evaluation method by
[国外标准] JIS Z 9202：1991 General rules for heat balance
[国外标准] JIS Z 9090：1991 Measurement -- General rules for calibration system
[国外标准] JIS Z 8803：1991 Viscosity of liquid -- Methods of measurement
[国外标准] JIS Z 8716：1991 Fluorescent lamp as a simulator of CIE standard illuminant D65 for a visual comparis
[国外标准] JIS Z 3920：1991 Methods for chemical analysis of elements in welding fumes
[国外标准] JIS Z 2319：1991 Methods for magnetic leakage flux testing